†Trilobita [class] †Agnostida [order] †Agnostidae [family] †Acmarhachis acuta (Kobayashi, 1938) [species] †Acmarhachis apicula (Oepik, 1967) [species] †Acmarhachis karatauensis Ergaliev, 1980 [species] †Acmarhachis kindlei Westrop & Eoff, 2012 [species] †Acmarhachis longispinus Ergaliev, 1980 [species] †Acmarhachis punctatus Ergaliev, 1980 [species] †Acmarhachis typicalis Resser, 1938 [species] †Acmarhachis whittingtoni Westrop & Eoff, 2012 [species] †Acutatagnostus acutatus Ergaliev, 1980 [species] †Acutatagnostus chinensis Peng, 1992 [species] †Acutatagnostus punctatus Ergaliev & Ergaliev, 2008 [species] †Agnostardis amplinatis Opik, 1963 [species] †Agnostus artilimbatus Opik, 1967 [species] †Agnostus babcocki Peng & Robison, 2000 [species] †Agnostus bonnerensis Resser, 1938 [species] †Agnostus brighamensis Resser, 1939 [species] †Agnostus captiosus Lazarenko, 1966 [species] †Agnostus neglectus (Westergard, 1946) [species] †Agnostus tardus (Barrande, 1846) [species] †Agnostus valentinus Lochman, 1944 [species] †Ammagnostus adchinensis (Schrank, 1975) [species] †Ammagnostus cryptus Peng & Robison, 2000 [species] †Ammagnostus duibianensis Lu & Lin, 1989 [species] †Ammagnostus euryaxis Opik, 1967 [species] †Ammagnostus histus Peng & Robison, 2000 [species] †Ammagnostus hunanensis Peng & Robison, 2000 [species] †Ammagnostus incertus (Robison, 1964) [species] †Ammagnostus integriceps Opik, 1967 [species] †Ammagnostus parvilobus Ergaliev & Ergaliev, 2008 [species] †Ammagnostus psammius Opik, 1967 [species] †Ammagnostus serus Choi et al., 2004 [species] †Ammagnostus simplexiformis (Rozova, 1964) [species] †Ammagnostus sinensis Peng, 1987 [species] †Ammagnostus spinosus Ergaliev & Ergaliev, 2008 [species] †Ammagnostus timus Ergaliev & Ergaliev, 2008 [species] †Ammagnostus wangcunensis Peng & Robison, 2000 [species] †Biciragnostus biformis Ergaliev, 2001 [species] †Connagnostus fritzi Pratt, 1992 [species] †Connagnostus longirhachis Ergaliev & Ergaliev, 2008 [species] †Connagnostus tangshanensis Zhu & Wittke, 1989 [species] †Connagnostus venerabilis Opik, 1967 [species] †Distagnostus celatus Peng, 1992 [species] †Eolotagnostus cristus Ergaliev & Ergaliev, 2008 [species] †Eolotagnostus decorus Peng, 1992 [species] †Eolotagnostus pseudohedini Ergaliev & Ergaliev, 2008 [species] †Eolotagnostus scrobicularis (Ergaliev, 1980) [species] †Eurudagnostus conicus Ergaliev & Ergaliev, 2008 [species] †Eurudagnostus kazachstanicus Ergaliev, 1980 [species] †Eurudagnostus minor Ergaliev, 1980 [species] †Eurudagnostus ovaliformis Ergaliev, 1980 [species] †Eurudagnostus ovalis Ergaliev & Ergaliev, 2008 [species] †Formosagnostus convexus (Chu, 1959) [species] †Formosagnostus formosus Ergaliev, 1980 [species] †Formosagnostus zhanatasicus Ergaliev & Ergaliev, 2008 [species] †Glyptagnostus angelini Resser, 1938 [species] †Glyptagnostus reticulatus (Angelin, 1851) [species] †Glyptagnostus stolidotus Opik, 1961 [species] †Gymnagnostus congros Robison & Pantoja-Alor, 1968 [species] †Gymnagnostus mexicanus Robison & Pantoja-Alor, 1968 [species] †Hadragnostus modestus (Lochman, 1944) [species] †Hadragnostus quadratiformis Ergaliev & Ergaliev, 2008 [species] †Homagnostus alaskensis Palmer, 1968 [species] †Homagnostus claviformis Ergaliev, 1980 [species] †Homagnostus comptus (Palmer, 1962) [species] †Homagnostus hoiformis (Kobayashi, 1933) [species] †Homagnostus hoi (Sun, 1924) [species] †Homagnostus longiformis Ergaliev, 1980 [species] †Homagnostus piriformis Ergaliev & Ergaliev, 2008 [species] †Homagnostus seletensis Ivshin, 1962 [species] †Homagnostus sulcatus Choi et al., 2004 [species] †Homagnostus zhuangliensis Qian, 1985 [species] †Idolagnostus agrestis Opik, 1967 [species] †Innitagnostus inexpectans (Kobayashi, 1938) [species] †Innitagnostus innitens Opik, 1967 [species] †Ivshinagnostus alatus Choi et al., 2004 [species] †Ivshinagnostus hunanensis Peng, 1992 [species] †Ivshinagnostus ivshini Ergaliev, 1980 [species] †Ivshinagnostus quadratus Choi et al., 2004 [species] †Kormagnostella carinata Ergaliev & Ergaliev, 2008 [species] †Kormagnostella longa Ergaliev, 1980 [species] †Kormagnostus boltoni Westrop et al., 1996 [species] †Kormagnostus clavatus Lu & Lin, 1989 [species] †Kormagnostus copelandi Westrop et al., 1996 [species] †Kormagnostus inventus (Shergold, 1982) [species] †Kormagnostus minutus (Schrank, 1975) [species] †Kormagnostus seclusus (Walcott, 1884) [species] †Leiagnostus inletensis Bao & Jago, 2000 [species] †Leiagnostus perinflatus Harrington & Leanza, 1957 [species] †Leiagnostus turgidulus Harrington & Leanza, 1957 [species] †Lotagnostus agnostiformis Apollonov & Tschugaeva, 1983 [species] †Lotagnostus asiaticus Troedsson, 1937 [species] †Lotagnostus extremus Ergaliev & Ergaliev, 2008 [species] †Lotagnostus hedini (Troedsson, 1937) [species] †Lotagnostus obscurus Palmer, 1955 [species] †Lotagnostus punctatus Lu, 1964 [species] †Lotagnostus trisectus (Salter, 1864) [species] †Micragnostus bilobus Qiu, 1984 [species] †Micragnostus brevispinus (Lermontova, 1951) [species] †Micragnostus chengcunensis Qiu, 1984 [species] †Micragnostus chiushuensis (Kobayashi, 1931) [species] †Micragnostus curvata (Robison & Pantoja-Alor, 1968) [species] †Micragnostus elongatus (Chien, 1961) [species] †Micragnostus hisakoshii (Kobayashi, 1962) [species] †Micragnostus intermedius (Palmer, 1968) [species] †Micragnostus mutabilis (Ergaliev, 1980) [species] †Micragnostus orientalis (Lu & Lin, 1980) [species] †Micragnostus quadratiformis Ergaliev & Ergaliev, 2008 [species] †Micragnostus serus Fortey, 1980 [species] †Micragnostus strictus Sun, 1989 [species] †Neoagnostus acutifrons (Troedsson, 1937) [species] †Neoagnostus aspidoides Kobayashi, 1955 [species] †Neoagnostus bituberculatus (Ivshin, 1960) [species] †Neoagnostus clavus (Shergold, 1975) [species] †Neoagnostus cornuformis Ergaliev & Ergaliev, 2008 [species] †Neoagnostus denticulatus (Shergold, 1975) [species] †Neoagnostus felix Shergold, 1980 [species] †Neoagnostus fengzuensis Lu & Lin, 1984 [species] †Neoagnostus greeni Shergold, 1980 [species] †Neoagnostus kyrshabactensis Ergaliev & Ergaliev, 2008 [species] †Neoagnostus longicollis (Kobayashi, 1966) [species] †Neoagnostus occultatus (Xiang & Zhang, 1985) [species] †Neoagnostus pseudoclavus Ergaliev & Ergaliev, 2008 [species] †Neoagnostus quadratiformis Ergaliev, 1980 [species] †Neoagnostus quasibilobus (Shergold, 1975) [species] †Neoagnostus sabulosus Peng, 1992 [species] †Neoagnostus shiziluensis Lu & Zhou, 1990 [species] †Neoagnostus tenuispinus Ergaliev & Ergaliev, 2008 [species] †Neoagnostus tumidus (Sun, 1989) [species] †Neoagnostus urceus Choi et al., 2004 [species] †Oncagnostus tumidosus (Hall & Whitfield, 1877) [species] †Phalagnostus carinatus Lu & Lin, 1989 [species] †Phalagnostus cuneatus Rozova, 1964 [species] †Phalagnostus glandiformis (Angelin, 1851) [species] †Proagnostus bulbus Butts, 1926 [species] †Quadrahomagnostus subquadratus Chu, 1959 [species] †Quadrahomagnostus tienshihfuensis Chu, 1959 [species] †Strictagnostus latisulcus Ergaliev, 1980 [species] †Trilobagnostus convexus Ergaliev & Ergaliev, 2008 [species] †Trilobagnostus innitialis Ergaliev & Ergaliev, 2008 [species] †Trilobagnostus kazachstanicus Ergaliev & Ergaliev, 2008 [species] †Trilobagnostus pseudorudis Ergaliev & Ergaliev, 2008 [species] †Trilobagnostus spinosus Ergaliev & Ergaliev, 2008 [species] †Agnostogonus incognitus Opik, 1967 [species] †Agnostoidea [superfamily] †Anomocaridae [family] †Afghanocare guizhouensis Yuan & Yin, 1998 [species] †Afghanocare truncatum (Peng, 1987) [species] †Anomocare laeve Angelin, 1852 [species] †Anomocare laevis (Angelin, 1851) [species] †Anomocarina absona Rozova, 1964 [species] †Anomocarina excavata (Angelin, 1851) [species] †Anomocarina perrara Rozova, 1964 [species] †Anomocarina splendens Lermontova, 1940 [species] †Anomocarioides amplus Rozova, 1964 [species] †Anomocarioides tersus Rozova, 1964 [species] †Fuquania conica Zhao & Huang, 1981 [species] †Fuquania gelaobaoensis Zhao & Huang, 1981 [species] †Glyphaspellus sinensis Peng et al., 2004 [species] †Igarkiella igarkaensis Rozova, 1964 [species] †Jimanomocare nanum Yuan & Yin, 1998 [species] †Koptura lisani (Walcott, 1911) [species] †Koptura temenus Lin et al., 1983 [species] †Metanomocare honestum Rozova, 1964 [species] †Metanomocare perbonum Rozova, 1964 [species] †Paibianomocare lineatum Peng et al., 2004 [species] †Paibianomocare paibiense Peng et al., 2004 [species] †Paracoosia huayuanensis Peng et al., 2004 [species] †Paracoosia kingi Wittke, 1984 [species] †Qinlingialingia henanensis (Yang et al., 1993) [species] †Qinlingialingia magnoccipitis (Yang et al., 1993) [species] †Qinlingialingia transversa (Yang et al., 1993) [species] †Russiana polita (Pegel, 1986) [species] †Schoriecare latum (Lazarenko, 1960) [species] †Schoriecare ratum Rozova, 1964 [species] †Wutingshania lui Chu, 1959 [species] †Diplagnostidae [family] †Acadagnostus argentinus Harrington & Leanza, 1957 [species] †Agnostotes clavata Lu, 1964 [species] †Agnostotes latilimbatus Peng, 1992 [species] †Baltagnostus ambonus Peng & Robison, 2000 [species] †Baltagnostus magnificus Ergaliev & Ergaliev, 2008 [species] †Baltagnostus rakuroensis (Kobayashi, 1935) [species] †Diplagnostus floralis Opik, 1979 [species] †Diplagnostus planicauda (Angelin, 1851) [species] †Diplagnostus pseudofloralis Ergaliev & Ergaliev, 2008 [species] †Diplagnostus pyriformis Ergaliev & Ergaliev, 2008 [species] †Iniospheniscus nodai (Endo, 1944) [species] †Linguagnostus kjerulfi (Brogger, 1878) [species] †Linguagnostus paibiensis Dong, 1991 [species] †Linguagnostus reconditus Poletaeva & Romanenko, 1970 [species] †Linguagnostus stenus Peng & Robison, 2000 [species] †Linguagnostus wanyuanensis Yang et al., 1993 [species] †Litagnostus planulatus (Raymond, 1924) [species] †Machairagnostus tmetus Harrington & Leanza, 1957 [species] †Nahannagnostus logani Pratt, 1992 [species] †Nahannagnostus nganasanicus (Rozova, 1964) [species] †Nahannagnostus pratti Choi et al., 2004 [species] †Oedorhachis globulosus Ergaliev, 2001 [species] †Oedorhachis taitzehoensis (Chu, 1959) [species] †Oidalagnostus changi Lu, 1964 [species] †Oidalagnostus trispinifer Westergard, 1946 [species] †Pseudagnostina douvillei (Bergeron, 1899) [species] †Pseudagnostus ampullatus Opik, 1967 [species] †Pseudagnostus anhuiensis Qian, 1985 [species] †Pseudagnostus benxiensis Qian, 1982 [species] †Pseudagnostus bulgosus Opik, 1967 [species] †Pseudagnostus chinensis (Dames, 1883) [species] †Pseudagnostus communis (Hall & Whitfield, 1877) [species] †Pseudagnostus cyclopyge (Tullberg, 1880) [species] †Pseudagnostus dividuus Choi et al., 2004 [species] †Pseudagnostus idalis Opik, 1967 [species] †Pseudagnostus josephus (Hall, 1863) [species] †Pseudagnostus karatauensis Ergaliev, 1980 [species] †Pseudagnostus koerferi (Monke, 1903) [species] †Pseudagnostus leptoplastorum Westergard, 1944 [species] †Pseudagnostus marginisulcatus Kobayashi, 1962 [species] †Pseudagnostus medius Choi et al., 2004 [species] †Pseudagnostus mestus Opik, 1967 [species] †Pseudagnostus obsurdus Ergaliev & Ergaliev, 2008 [species] †Pseudagnostus praecurrens Ergaliev, 1980 [species] †Pseudagnostus primus Kobayashi, 1935 [species] †Pseudagnostus prolongus (Hall & Whitfield, 1877) [species] †Pseudagnostus pseudangustilobus Ergaliev, 1980 [species] †Pseudagnostus pseudocyclopyge Ivshin, 1956 [species] †Pseudagnostus punctatus Ergaliev & Ergaliev, 2008 [species] †Pseudagnostus rajovopsis Pratt, 1992 [species] †Pseudagnostus securiger (Lake, 1906) [species] †Pseudagnostus sericatus Opik, 1967 [species] †Pseudagnostus subquadratus Lu & Zhu, 1980 [species] †Pseudagnostus vastulus Whitehouse, 1936 [species] †Pseudoglyptagnostus clavatus (Lu, 1964) [species] †Sulcatagnostus dubius Lu & Lin, 1989 [species] †Sulcatagnostus hunanensis Peng, 1992 [species] †Sulcatagnostus rugosus Ergaliev, 1980 [species] †Xestagnostus legirupa Opik, 1967 [species] †Xestagnostus transversus Lu & Lin, 1989 [species] †Hypagnostoidae [family] †Raragnostus mirus Hajrullina, 1975 [species] †Marjumiidae [family] †Modocia integella Rozova, 1964 [species] †Modocia obscura Zhang et al., 1980 [species] †Nasocephalus nasutus Wilson, 1954 [species] †Nericella diffusa Rozova, 1964 [species] †Nericia quinquedentata Westergard, 1948 [species] †Pseudagnostidae [family] †Asqaragnostus uniformis (Ergaliev, 2001) [species] †Rhaptagnostus anhuiensis Qiu, 1984 [species] †Rhaptagnostus bifax (Shergold, 1975) [species] †Rhaptagnostus changshanensis Lu & Lin, 1980 [species] †Rhaptagnostus ciliensis Peng, 1992 [species] †Rhaptagnostus convexiformis Ergaliev & Ergaliev, 2008 [species] †Rhaptagnostus cyclopygeformis (Sun, 1924) [species] †Rhaptagnostus elix (Shergold, 1975) [species] †Rhaptagnostus gunnari Ludvigsen & Westrop, 1989 [species] †Rhaptagnostus heteromorphus Xiang & Zhang, 1985 [species] †Rhaptagnostus langyashanensis Lu & Zhu, 1980 [species] †Rhaptagnostus obsoletus (Lermontova, 1951) [species] †Rhaptagnostus plenus Xiang & Zhang, 1985 [species] †Rhaptagnostus pseudoconvergens Ergaliev & Ergaliev, 2008 [species] †Rhaptagnostus simplex (Lermontova, 1951) [species] †Trisulcagnostus trisulcus Ergaliev, 1980 [species] †Yongwolagnostus dubius Choi et al., 2004 [species] †Yongwolagnostus longiformis Ergaliev & Ergaliev, 2008 [species] †Yongwolagnostus stenorhachis Choi et al., 2004 [species] †Solenopleuridae [family] †Acrocephalaspis orientalis Lazarenko, 1966 [species] †Acrocephalina acuta Troedsson, 1937 [species] †Aldanaspis enodata Rozova, 1964 [species] †Changqingia chalcon (Walcott, 1911) [species] †Changqingia intermedia (Walcott, 1906) [species] †Changqingia laevis Peng et al., 1995 [species] †Changqingia luia Luo, 2001 [species] †Conicephalus caigouensis Yang et al., 1993 [species] †Eilura hanchengensis Luo, 2001 [species] †Eilura quadrata Resser & Endo, 1937 [species] †Herse xingrenensis Chow, 1974 [species] †Huzhuia paratypica Yang, 1978 [species] †Inouyella yiyangensis Meng, 1977 [species] †Lashushania lashuensis Zhang, 1999 [species] †Lianglangshania hueirenensis Zhang & Wang, 1985 [species] †Lophodesella henanensis Zhang et al., 1995 [species] †Lophodesella quadrata Zhang et al., 1980 [species] †Lophodesella rectangula Zhang et al., 1980 [species] †Maiaspis blandita Rozova, 1964 [species] †Maiaspis mirabilis Chernysheva, 1956 [species] †Maiaspis quadrata Chernysheva, 1956 [species] †Minupeltis conservator Palmer, 1960 [species] †Minupeltis definita Palmer, 1965 [species] †Oreisator tichkaensis Geyer & Malinky, 1997 [species] †Parasolenopleura aculeata (Angelin, 1951) [species] †Parasolenopleura parabolica Geyer, 2017 [species] †Parasolenopleura peregrina Wallerius, 1930 [species] †Parasolenopleura wurmi Geyer, 2017 [species] †Pardailhania hispida (Thoral, 1935) [species] †Pseudosolenoparia angusta Zhang et al., 1980 [species] †Pseudosolenoparia normalis Zhang et al., 1980 [species] †Pseudosolenoparia yankongensis Zhou, 1974 [species] †Rina abdita Rozova, 1964 [species] †Rina celebrata Rozova, 1964 [species] †Rina postrema Rozova, 1964 [species] †Shanghaiaspis decipiens Xu & Ju, 1987 [species] †Shanghaiaspis latilimbatus Xu & Ju, 1987 [species] †Shanghaiaspis usualis Xu & Ju, 1987 [species] †Solenoparia (Plesisolenoparia) angustilimbata Lu et al., 1988 [species] †Solenoparia (Plesisolenoparia) multisegmenta Zhang et al., 1980 [species] †Solenoparia (Plesisolenoparia) primitia Zhang et al., 1980 [species] †Solenoparia (Plesisolenoparia) ruichengensis Zhang et al., 1980 [species] †Solenoparia (Plesisolenoparia) transversa Zhang et al., 1980 [species] †Solenoparia (Plesisolenoparia) trapezoidalis Zhang et al., 1980 [species] †Solenoparia agno (Walcott, 1905) [species] †Solenoparia conica Yang et al., 1993 [species] †Solenoparia jiangsuensis Lin et al., 1983 [species] †Solenoparia miaohouensis Zhang et al., 1980 [species] †Solenoparia minuta Lu & Chang, 1974 [species] †Solenoparia talingensis (Dames, 1883) [species] †Solenoparops lata Zhang et al., 1995 [species] †Solenoparops similis Zhang et al., 1980 [species] †Solenopleura bucculenta Grönwall, 1902 [species] †Solenopleura holometopa (Angelin, 1851) [species] †Solenopleura pruina Palmer & Gatehouse, 1972 [species] †Squarrosoella tuberculata Zhang et al., 1980 [species] †Wafangdiania baijiaensis Zhang, 1999 [species] †Aotagnostus minutus Lu & Lin, 1989 [species] †Calodiscus lobatus (Hall, 1847) [species] †Korobovia khorbosuonica Korovnikov, 2007 [species] †Neocobboldia chinlinica Lee, 1963 [species] †Neocobboldia transversa Ju, 1983 [species] †Neocobboldia yichunensis Duan & An, 2001 [species] †Neocobboldia zhejiangensis Ju, 1983 [species] †Sinodiscus changyangensis Zhang, 1977 [species] †Sinodiscus kunshanensis Zhang & Zhou, 1985 [species] †Sinodiscus shipaiensis Chang, 1974 [species] †Sinodiscus trisulcatus Zhang & Zhou, 1985 [species] †Clavagnostidae [family] †Aspidagnostus laevis Palmer, 1962 [species] †Aspidagnostus lunulosus (Kryskov, 1963) [species] †Aspidagnostus orientalis Yang et al., 1993 [species] †Aspidagnostus primitivus Yang et al., 1993 [species] †Aspidagnostus rugosus Palmer, 1962 [species] †Clavagnostus burnsi Jago & Daily, 1974 [species] †Clavagnostus calensis Rusconi, 1950 [species] †Clavagnostus cuneatus Romanenko, 1967 [species] †Clavagnostus repandus (Westergard, 1930) [species] †Clavagnostus spinosus (Resser, 1938) [species] †Clavagnostus subconicus Lu & Lin, 1989 [species] †Clavagnostus taoyuanensis Lin, 1991 [species] †Clavagnostus trispinus Zhou & Yang, 1977 [species] †Clavagnostus (Paraclavagnostus) variatus Yang et al., 1993 [species] †Utagnostus neglectus (Jago, 1976) [species] †Utagnostus songae Peng & Robison, 2000 [species] †Utagnostus trispinulus Robison, 1964 [species] †Dividuagnostus minus Koroleva, 1982 [species] †Eodiscidae [family] †Dawsonia dawsoni Hartt, 1868 [species] †Eodiscus bellimarginatus Shaler & Foerste, 1888 [species] †Eodiscus simplex Cobbold, 1931 [species] †Opsidiscus haimantensis (Reed, 1910) [species] †Pagetia arenosa Fritz, 1968 [species] †Pagetia bootes Walcott, 1916 [species] †Pagetia clytia Walcott, 1916 [species] †Pagetia danzhaiensis Zhang et al., 1980 [species] †Pagetia dayongensis Liu, 1982 [species] †Pagetia ellsi Rasetti, 1945 [species] †Pagetia fossula Resser, 1938 [species] †Pagetia longispina Palmer & Gatehouse, 1972 [species] †Pagetia mucrogena Fritz, 1968 [species] †Pagetia taijiangensis Yuan et al., 1997 [species] †Pagetia (Sinopagetia) huainanensis (Yuan & Li, 1999) [species] †Pagetia (Sinopagetia) jinnanensis (Zhang et al., 1980) [species] †Pagetia (Sinopagetia) neimengguensis (Zhang & Yuan, 1981) [species] †Pagetides antarcticus Palmer & Gatehouse, 1972 [species] †Pagetides elegans Rasetti, 1945 [species] †Pagetides spinulus Fritz, 1972 [species] †Glaberagnostus altaicus Romanenko, 1985 [species] †Glaberagnostus bituberculatus (Angelin, 1851) [species] †Glaberagnostus cicer (Tullberg, 1880) [species] †Hebediscidae [family] †Hebediscus sublongus Korovnikov, 2007 [species] †Limbadiscus incitus (Romanenko, 1978) [species] †Luvsanodiscus gammatus Korobov, 1980 [species] †Megagnostus aksayensis Ergaliev & Ergaliev, 2008 [species] †Metagnostidae [family] †Arthrorhachis danica Poulsen, 1965 [species] †Arthrorhachis elliptifrons Tjernvik, 1956 [species] †Arthrorhachis tarda (Barrande, 1846) [species] †Arthrorhachis tardus (Barrande, 1846) [species] †Corrugatagnostus convergens Weir, 1959 [species] †Galbagnostus galba (Billings, 1865) [species] †Geragnostus (Geragnostella) explanatus Tjernvik, 1956 [species] †Geragnostus (Geragnostella) tullbergi (Novak, 1883) [species] †Geragnostus (Geragnostella) wimani Tjernvik, 1956 [species] †Geragnostus clusus Whittington, 1963 [species] †Geragnostus fabius (Billings, 1865) [species] †Geragnostus longicollis (Raymond, 1925) [species] †Geragnostus (Geragnostus) maurii Harrington & Leanza, 1957 [species] †Geragnostus (Geragnostus) nesossii Harrington & Leanza, 1957 [species] †Geragnostus (Microagnostus) callaveiformis Harrington & Leanza, 1957 [species] †Geragnostus (Microagnostus) calviformis Harrington & Leanza, 1957 [species] †Geragnostus (Microagnostus) hoeki Kobayashi, 1939 [species] †Geragnostus (Microagnostus) micropeltis Harrington & Leanza, 1957 [species] †Geragnostus (Microagnostus) neumanni Harrington & Leanza, 1957 [species] †Geragnostus (Microagnostus) tilcuyensis Kobayashi, 1937 [species] †Geragnostus (Microagnostus) vilonii Harrington & Leanza, 1957 [species] †Geragnostus (Novoagnostus) contractus Zhou et al., 2014 [species] †Trinodus agnostiformis McCoy, 1846 [species] †Trinodus cylindricus Chen in Li, 1975 [species] †Trinodus elspethi (Raymond, 1925) [species] †Trinodus jujuyensis Harrington, 1938 [species] †Trinodus saltaensis Harrington & Leanza, 1957 [species] †Trinodus tardus (Barrande, 1846) [species] †Peronopsidae [family] †Archaeagnostus primigneus Kobayashi, 1939 [species] †Ciceragnostus iruyensis Kayser, 1897 [species] †Gallagnostus bolivianus Hoek, 1912 [species] †Peronopsis (Armagnostus) sinensis Yang et al., 1993 [species] †Peronopsis acadica (Hartt, 1868) [species] †Peronopsis amplaxis Robison, 1982 [species] †Peronopsis angustilimbatus Ergaliev & Ergaliev, 2008 [species] †Peronopsis bilobus Yang et al., 1993 [species] †Peronopsis bulkurensis Pokrovskaya & Pegel, 1982 [species] †Peronopsis curtus Ergaliev & Ergaliev, 2008 [species] †Peronopsis cylindrica Westergard, 1946 [species] †Peronopsis elongatus Ergaliev & Ergaliev, 2008 [species] †Peronopsis fallax (Linnarsson, 1869) [species] †Peronopsis gaspensis Rasetti, 1948 [species] †Peronopsis guoleensis Sun, 1989 [species] †Peronopsis inarmata Hutchinson, 1962 [species] †Peronopsis integer (Beyrich, 1845) [species] †Peronopsis intermedius Ergaliev & Ergaliev, 2008 [species] †Peronopsis laiwuensis (Lorenz, 1906) [species] †Peronopsis ozakii (Resser & Endo, 1937) [species] †Peronopsis prodigialis Ergaliev & Ergaliev, 2008 [species] †Peronopsis pseudointerstrictus Ergaliev & Ergaliev, 2008 [species] †Peronopsis shandongensis Sun, 1989 [species] †Peronopsis taitzuhoensis Lu, 1957 [species] †Peronopsis ultimus Ergaliev, 1980 [species] †Peronopsis xichuanensis Yang et al., 1993 [species] †Svenax pusillus (Tullberg, 1880) [species] †Phalacromidae [family] †Lisogoragnostus circularis (Yang et al., 1993) [species] †Lisogoragnostus convexus Ergaliev & Ergaliev, 2008 [species] †Lisogoragnostus coreanicus Hong et al., 2003 [species] †Lisogoragnostus hybus Peng & Robison, 2000 [species] †Lisogoragnostus karatauensis Ergaliev & Ergaliev, 2008 [species] †Lisogoragnostus mictus Peng & Robison, 2000 [species] †Lisogoragnostus minor (Kobayashi, 1962) [species] †Munagnostus asiaticus Pokrovskaya & Ergaliev, 2008 [species] †Phaldagnostus obsurdus Ergaliev, 1980 [species] †Phaldagnostus orbiformis Ivshin, 1960 [species] †Toragnostus orbiculatus (Ergaliev, 1980) [species] †Ptychagnostidae [family] †Goniagnostus fumicola Opik, 1961 [species] †Goniagnostus nathorsti (Brogger, 1878) [species] †Goniagnostus scarabaeus Whitehouse, 1939 [species] †Goniagnostus spiniger (Westergard, 1931) [species] †Goniagnostus venustus Zhou & Yang, 1977 [species] †Lejopyge acantha Robison, 1984 [species] †Lejopyge armata (Linnarsson, 1869) [species] †Lejopyge calva Robison, 1964 [species] †Lejopyge cos Opik, 1967 [species] †Lejopyge laevigata (Dalman, 1828) [species] †Lejopyge multifora Opik, 1979 [species] †Lejopyge sinensis Lu & Lin, 1987 [species] †Myrmecomimus solitarius Ergaliev & Ergaliev, 2008 [species] †Onymagnostus convexus Ergaliev & Ergaliev, 2008 [species] †Onymagnostus cuneiformis Ergaliev & Ergaliev, 2008 [species] †Onymagnostus ovaliformis Ergaliev & Ergaliev, 2008 [species] †Onymagnostus rotundatus (Ergaliev, 1980) [species] †Onymagnostus stenorrhachis (Grönwall, 1902) [species] †Pentagnostus admirabilis Ergaliev & Ergaliev, 2008 [species] †Pentagnostus endemicus Ergaliev & Ergaliev, 2008 [species] †Pentagnostus praecurrens (Westergard, 1936) [species] †Pentagnostus shabaktensis Ergaliev & Ergaliev, 2008 [species] †Ptychagnostus acidusus Opik, 1979 [species] †Ptychagnostus aculeatus (Angelin, 1851) [species] †Ptychagnostus aksayensis Ergaliev & Ergaliev, 2008 [species] †Ptychagnostus atavus (Tullberg, 1880) [species] †Ptychagnostus convexus Westergard, 1946 [species] †Ptychagnostus cuyanus (Rusconi, 1948) [species] †Ptychagnostus intermedius (Tullberg, 1880) [species] †Ptychagnostus karatauensis Ergaliev, 1980 [species] †Ptychagnostus leptus Qian, 1983 [species] †Ptychagnostus punctuosus (Angelin, 1851) [species] †Ptychagnostus seminula (Whitehouse, 1939) [species] †Ptychagnostus sinicus Lu, 1957 [species] †Ptychagnostus spinosus Ergaliev, 1980 [species] †Ptychagnostus (Ptychagnostus) fissus (Lundgren, 1879) [species] †Tomagnostus sibiricus Pokrovskaya & Jegorova, 1972 [species] †Triplagnostus gibbus (Linnarsson, 1869) [species] †Yakutiana crebra (Pokrovskaya, 1958) [species] †Yakutiana dubium (Whitehouse, 1936) [species] †Yakutiana lundgreni (Tullberg, 1880) [species] †Yakutiana ovale (Yang, 1982) [species] †Yakutiana scanense (Westergard, 1946) [species] †Zeteagnostus incautus Opik, 1979 [species] †Sphaeragnostidae [family] †Sphaeragnostus cingulatus (Olin, 1906) [species] †Sphaeragnostus similaris (Barrande, 1872) [species] †Spinagnostidae [family] †Cotalagnostus lens (Grönwall, 1902) [species] †Doryagnostus incertus (Brogger, 1878) [species] †Doryagnostus solidus Opik, 1979 [species] †Hypagnostus anhuiensis Lu & Zhu, 1980 [species] †Hypagnostus bilobatus Qian & Zhou, 1984 [species] †Hypagnostus brevifrons (Angelin, 1851) [species] †Hypagnostus gibber Yang et al., 1993 [species] †Hypagnostus hunanicus Lu, 1957 [species] †Hypagnostus parvifrons (Linnarsson, 1869) [species] †Hypagnostus prodigialis Ergaliev & Ergaliev, 2008 [species] †Hypagnostus scrobiculatus Westergard, 1946 [species] †Hypagnostus transversus Yang et al., 1993 [species] †Hypagnostus truncatus (Brogger, 1878) [species] †Hypagnostus vulgarus (Qian & Qiu, 1983) [species] †Peratagnostus controversus (Kryskov, 1963) [species] †Peratagnostus distinctus Lu & Lin, 1989 [species] †Peratagnostus hillardensis Palmer, 1968 [species] †Peratagnostus invalidus (Lu & Lin, 1989) [species] †Peratagnostus nobilis Opik, 1967 [species] †Peratagnostus obsoletus (Kobayashi, 1935) [species] †Peratagnostus orientalis (Lazarenko, 1966) [species] †Peratagnostus zhejiangensis Lu & Lin, 1989 [species] †Pseudoperonopsis karatauensis Ergaliev & Ergaliev, 2008 [species] †Pseudoperonopsis syrma Opik, 1979 [species] †Pseudoperonopsis zuninoi Harrington & Leanza, 1957 [species] †Tomagnostella exsculpta (Angelin, 1851) [species] †Tomagnostella jiangshanensis Lu & Lin, 1989 [species] †Tomagnostella sulcifera (Wallerius, 1895) [species] †Tomagnostella tenuis Ergaliev & Ergaliev, 2008 [species] †Tsunyidiscidae [family] †Tsunyidiscus aclis Zhou, 1975 [species] †Tsunyidiscus chintingshanensis (Lu, 1942) [species] †Tsunyidiscus fengdongensis Zhang et al., 1980 [species] †Tsunyidiscus kunshanensis Zhang & Zhou, 1985 [species] †Tsunyidiscus niutitangensis (Chang, 1964) [species] †Tsunyidiscus pertenus Lin et al., 2004 [species] †Tsunyidiscus tingi (Lu, 1942) [species] †Tsunyidiscus yanjiazhaiensis Zhang et al., 1980 [species] †Valenagnostus imitans (Oepik, 1961) [species] †Weymouthiidae [family] †Morocconus notabilis (Geyer, 1988) [species] †Runcinodiscus index Rushton, 1976 [species] †Weymouthia nobilis (Ford, 1872) [species] †Yukonides lacrinus Fritz, 1972 [species] †Amechilus palaora Ross, 1951 [species] †Asaphida [order] †Alsataspididae [family] †Araiopleura reticulata Harrington & Leanza, 1957 [species] †Falanaspis aliena Tjernvik, 1956 [species] †Falanaspis extensa Fortey, 1975 [species] †Gaoloupingia gaoloupingensis Yuan & Yin, 1998 [species] †Gaoloupingia triangularis Yuan & Yin, 1998 [species] †Hapalopleura clavata Harrington & Leanza, 1957 [species] †Hapalopleura longicornis Harrington & Leanza, 1957 [species] †Jegorovaia convexa Lu & Chien, 1974 [species] †Jegorovaia expansa Lu, 1964 [species] †Joshuaspis parvus Choi et al., 2008 [species] †Macharia pengi Choi et al., 2008 [species] †Orometopus notatifrons Harrington & Leanza, 1957 [species] †Orometopus pyrifrons Harrington, 1938 [species] †Rhadinopleura eurycephala Harrington & Leanza, 1957 [species] †Skljarella expansa Bao & Jago, 2000 [species] †Skljarella hunanensis (Peng, 1984) [species] †Skljarella sulcifera Peng, 1992 [species] †Torifera abrupta Peng et al., 2004 [species] †Torifera jelli Peng et al., 2009 [species] †Torifera paraconvexa (Yang, 1978) [species] †Torifera taoyuanensis (Peng, 1987) [species] †Torifera tuma (Yang, 1977) [species] †Andrarinidae [family] †Andrarina comleyensis Richter, 1919 [species] †Groenwallina decora Rozova, 1964 [species] †Anomocarellidae [family] †Anomocarella chinensis Walcott, 1905 [species] †Anomocarella glabera Yang et al., 1993 [species] †Anomocarella spatha Mason, 1935 [species] †Anomocarella zushimiaoensis Yang et al., 1993 [species] †Fissanomocarella paibiensis Peng et al., 1995 [species] †Huayuania subcalva Peng et al., 1995 [species] †Liopeishania leura Yang et al., 1993 [species] †Liopeishania lubrica (Chang, 1957) [species] †Liopeishania marginata (Resser & Endo, 1937) [species] †Liopeishania spannensis Palmer & Gatehouse, 1972 [species] †Neoanomocarella asiatica Hsiang, 1963 [species] †Paranomocarella fortis Peng et al., 1995 [species] †Paranomocarella parallela Yang, 1977 [species] †Paranomocarella parapolita Yang, 1978 [species] †Paranomocarella pujiabaensis Yang et al., 1993 [species] †Paranomocarella transversa Yang et al., 1993 [species] †Plebiellus latilimbatus Zhang et al., 1980 [species] †Plebiellus lugouensis Yang et al., 1993 [species] †Plebiellus obsoletus Zhang et al., 1980 [species] †Aphelaspididae [family] †Amorphella magna Rozova, 1968 [species] †Amorphella modesta Rozova, 1963 [species] †Aphelaspis brachyphasis Palmer, 1962 [species] †Aphelaspis buttsi (Kobayashi, 1936) [species] †Aphelaspis granulata Kuo, 1963 [species] †Aphelaspis longispina Palmer, 1965 [species] †Aphelaspis subditus Palmer, 1962 [species] †Aphelaspis walcotti Resser, 1938 [species] †Dicanthopyge convergens Palmer, 1965 [species] †Dicanthopyge quadrata Palmer, 1965 [species] †Dicanthopyge reductus Palmer, 1965 [species] †Erixanium carinatum Palmer, 1965 [species] †Erixanium multisegmentus Palmer, 1965 [species] †Erixanium rectangularis Lu & Lin, 1983 [species] †Erixanium sentum Opik, 1963 [species] †Eugonocare tessellatum Whitehouse, 1939 [species] †Eugonocare whitehousei Henderson, 1976 [species] †Eugonocare (Pseudeugonocare) bispinatum (Kobayashi, 1962) [species] †Eugonocare (Pseudeugonocare) camptodromum Peng, 1992 [species] †Eugonocare (Pseudeugonocare) hunanense (Zhou, 1977) [species] †Kazakhius elegantulus (Ivshin, 1962) [species] †Kazakhius montis Dean, 2006 [species] †Listroa toxoura Palmer, 1962 [species] †Litocephalus granulomarginatus Palmer, 1960 [species] †Litocephalus magnus Palmer, 1965 [species] †Litocephalus verruculapeza Palmer, 1960 [species] †Maduiya composita (Rozova, 1963) [species] †Maduiya maduensis Rozova, 1963 [species] †Maduiya sibirica Rozova, 1963 [species] †Nganasanella interminata Rozova, 1964 [species] †Nganasanella nganasanensis Rozova, 1963 [species] †Nganasanella tavgaensis Rozova, 1963 [species] †Olenaspella consimila Ergaliev, 1980 [species] †Olenaspella cylindrata Peng, 1992 [species] †Olenaspella paucisegmenta Palmer, 1965 [species] †Olenaspella regularis Palmer, 1962 [species] †Olenaspella separata Palmer, 1962 [species] †Olentella shidertensis Ivshin, 1956 [species] †Taenicephalites macrops Rasetti, 1961 [species] †Taenora expansa Palmer, 1960 [species] †Taenora platifrons (Palmer, 1955) [species] †Tamaranella bella Rozova, 1963 [species] †Asaphoidea [superfamily] †Asaphidae [family] †Anataphrus borraeus Whittington, 1954 [species] †Anataphrus kermiti Amati, 2014 [species] †Anataphrus martinensis Ross & Shaw, 1972 [species] †Anataphrus megalophrys Amati, 2014 [species] †Asaphellus artus Robison & Pantoja-Alor, 1968 [species] †Asaphellus aspinus Robison & Pantoja-Alor, 1968 [species] †Asaphellus catamarcensis Kobayashi, 1935 [species] †Asaphellus communis Robison & Pantoja-Alor, 1968 [species] †Asaphellus homfrayi (Salter, 1866) [species] †Asaphellus jujuanus Harrington, 1937 [species] †Asaphellus riojanus Harrington & Leanza, 1957 [species] †Asaphus expansus (Wahlenberg, 1821) [species] †Asaphus (Asaphus) broggeri (Schmidt, 1901) [species] †Asaphus (Asaphus) expansus Wahlenberg, 1818 [species] †Asaphus (Asaphus) fallax Angelin, 1854 [species] †Asaphus (Asaphus) lepidurus (Nieszkowski, 1859) [species] †Asaphus (Asaphus) raniceps Dalman, 1827 [species] †Asaphus (Asaphus) vicarius (Törnquist, 1884) [species] †Asaphus (Neoasaphus) branconis (Pompecki, 1890) [species] †Asaphus (Neoasaphus) cornutus (Pander, 1830) [species] †Asaphus (Neoasaphus) delphinus (Lawrow, 1856) [species] †Asaphus (Neoasaphus) glabrata (Angelin, 1854) [species] †Asaphus (Neoasaphus) kowalewskii (Lawrow, 1856) [species] †Asaphus (Neoasaphus) laevissimus (Schmidt, 1898) [species] †Asaphus (Neoasaphus) latisegmentatus (Nieszkowski, 1857) [species] †Asaphus (Neoasaphus) latus (Pander, 1930) [species] †Asaphus (Neoasaphus) lepidus (Törnquist, 1884) [species] †Asaphus (Neoasaphus) ludibundus (Törnquist, 1884) [species] †Asaphus (Neoasaphus) nieszkowskii (Schmidt, 1898) [species] †Asaphus (Neoasaphus) ornatus (Pompecki, 1890) [species] †Asaphus (Neoasaphus) pachyophthalmus (Schmidt, 1901) [species] †Asaphus (Neoasaphus) platyurus (Angelin, 1854) [species] †Asaphus (Neoasaphus) robergii (Wiman, 1907) [species] †Asaphus (Neoasaphus) sulevi Jaanusson, 1953 [species] †Asaphus (Neoasaphus) uplandicus (Wiman, 1907) [species] †Asaphus (Onchometopus) volborthi Schmidt, 1898 [species] †Aulacoparia (Aulacoparia) sculpta Dean, 1989 [species] †Aulacoparia (Aulacoparia) venta (Hintze, 1952) [species] †Aulacoparia (Aulacoparina) quadrata (Hintze, 1952) [species] †Australopyge acanthura Harrington & Leanza, 1957 [species] †Australopyge russoi Harrington & Leanza, 1957 [species] †Basilicus asper Zhou & Fortey, 1986 [species] †Basilicus jinlini Zhou & Fortey, 1986 [species] †Basilicus mckeei Ross, 1970 [species] †Basilicus nanna Harrington, 1938 [species] †Basilicus typicalis Kobayashi, 1937 [species] †Basiliella carinata Harrington, 1938 [species] †Basiliella karmbergensis Edgecombe & Webby, 2007 [species] †Basiliella whittingtoni Shaw, 1968 [species] †Bellefontia acuminiferentis Ross, 1951 [species] †Bellefontia chamberlaini Clark, 1935 [species] †Bellefontia ibexensis Hintze, 1952 [species] †Birmanites akchiensis Ghobadi Pour et al., 2011 [species] †Birmanites brevicus Xiang & Zhou, 1987 [species] †Birmanites hupeiensis Yi, 1957 [species] †Birmanites kanlingensis Zhang, 1981 [species] †Birmanites qilangensis Zhang, 1981 [species] †Birmanites radiatus (Salter, 1866) [species] †Brachyaspis alacer (Billings, 1866) [species] †Brachyaspis altilis Raymond, 1912 [species] †Brachyaspis australis Whittington, 1954 [species] †Brachyaspis leptaenarum Warburg, 1925 [species] †Dolerasaphus laevis Harrington & Leanza, 1957 [species] †Gog catillus Fortey, 1975 [species] †Gog yangtzeensis (Lu, 1975) [species] †Guohongjunia triangulata Zhang, 1999 [species] †Hoekaspis megacantha Leanza, 1941 [species] †Hoekaspis schlagintweiti Harrington & Leanza, 1942 [species] †Homotelus laeviurus Raymond, 1921 [species] †Homotelus stegops (Green, 1832) [species] †Homotelus stincharensis Begg, 1950 [species] †Isoteloides canalis (Whitfield, 1886) [species] †Isoteloides flexus Hintze, 1952 [species] †Isoteloides peri Fortey, 1979 [species] †Isoteloides polaris Poulsen, 1927 [species] †Isoteloides saxosimontis Dean, 1989 [species] †Isotelus aktchokensis Weber, 1948 [species] †Isotelus bradleyi Amati, 2014 [species] †Isotelus copenhagenensis Ross & Shaw, 1972 [species] †Isotelus frognoensis Owen, 1981 [species] †Isotelus gigas Dekay, 1824 [species] †Isotelus harrisi Raymond, 1905 [species] †Isotelus iowensis (Owen, 1852) [species] †Isotelus kimmswickensis (Bradley, 1930) [species] †Isotelus maximus Locke, 1838 [species] †Isotelus megistos Locke, 1842 [species] †Isotelus parvirugosus Chatterton & Ludvigsen, 1976 [species] †Isotelus skapaneidos Amati, 2014 [species] †Isotelus spurius Phleger, 1933 [species] †Isotelus susae (Whitfield, 1882) [species] †Isotelus violaensis Amati, 2014 [species] †Isotelus walcotti Walcott, 1918 [species] †Kayseraspis asaphelloides Harrington, 1938 [species] †Kayseraspis brackebuschi Harrington, 1938 [species] †Lachnostoma disputa (Fortey, 1975) [species] †Lachnostoma latucelsum Ross, 1951 [species] †Lachnostoma platypyga Fortey & Bruton, 2013 [species] †Lapidaria rugosa Tjernvik, 1956 [species] †Lapidaria tenella Tjernvik, 1956 [species] †Liomegalaspides major (Zhang, 1981) [species] †Lisogorites mistus Zhou et al., 1995 [species] †Lisogorites tarimensis Zhang, 1981 [species] †Megalaspidella kayseri Kobayashi, 1937 [species] †Megalaspides dalecarlicus (Holm, 1882) [species] †Megalaspides nericiensis Wiman, 1905 [species] †Megalaspides striatellus Fortey, 1975 [species] †Megistaspis (Ekeraspis) armata (Tjernvik, 1956) [species] †Megistaspis (Ekeraspis) floweri Ross, 1970 [species] †Megistaspis (Ekeraspis) heroides (Brøgger, 1882) [species] †Megistaspis (Ekeraspis) nevadensis Ross, 1970 [species] †Megistaspis limbatus (Boeck, 1838) [species] †Megistaspis pugiocauda Harrington & Leanza, 1957 [species] †Megistaspis saltaensis Kayser, 1898 [species] †Megistaspis (Megistaspis) limbata (Boeck, 1838) [species] †Megistaspis (Megistaspis) polyphemus (Brögger, 1882) [species] †Megistaspis (Paramegistaspis) planilimbata (Angelin, 1851) [species] †Megistaspis (Rhinoferus) hyorrhina Leuchtenberg, 1843 [species] †Nahannia humilisulcata Chatterton & Ludvigsen, 1976 [species] †Nahannia mediocrisulcata Chatterton & Ludvigsen, 1976 [species] †Nileoides perkinsi (Raymond, 1910) [species] †Niobella birchensis Bao & Jago, 2000 [species] †Niobella bohlini Tjernvik, 1956 [species] †Niobella homfrayi (Salter, 1866) [species] †Niobella imparilimbata (Bohlin, 1955) [species] †Niobella kanauguki Ross, 1965 [species] †Niobella kozhuchensis Petrunina, 1973 [species] †Niobella obsoleta (Linnarsson, 1869) [species] †Niobella sanduensis Chien, 1961 [species] †Niobella tianjiapingensis Liu, 1982 [species] †Niobella yangjiawanensis Chien, 1961 [species] †Niobides armatus Harrington & Leanza, 1957 [species] †Niobina taurina Harrington & Leanza, 1957 [species] †Notopeltis orthometopa Harrington, 1938 [species] †Ogmasaphus costatus Jaanusson, 1953 [species] †Ogmasaphus hannanicus (Lu, 1975) [species] †Ogmasaphus praetextus (Törnquist, 1884) [species] †Ogyginus armoricanus Tromelin & Lebesconte, 1876 [species] †Ogygiocarella debuchana Harrington & Leanza, 1957 [species] †Ogygiocaris araiorhachis Harrington & Leanza, 1957 [species] †Ogygiocaris concentrica Funquist, 1919 [species] †Ogygitella australis Harrington & Leanza, 1957 [species] †Parabellefontia concinna Hintze, 1952 [species] †Paratamdaspis longiformis Ergaliev, 2001 [species] †Plectasaphus plicicostis (Törnquist, 1884) [species] †Presbynileus elongatus (Hintze, 1952) [species] †Presbynileus ibexensis (Hintze, 1952) [species] †Presbynileus utahensis (Hintze, 1952) [species] †Presbynileus (Presbynileus) latifrons Dean, 1989 [species] †Priceaspis (Fitzroyaspis) irritans Fortey & Shergold, 1984 [species] †Promegalaspides (Borogothus) stenorachis (Angelin, 1851) [species] †Promegalaspides kinnekullensis Westergard, 1939 [species] †Protopresbynileus glaber Fortey, 1975 [species] †Protopresbynileus willdeni (Hintze, 1952) [species] †Pseudasaphus aciculatus (Angelin, 1854) [species] †Pseudasaphus globifrons (Eischwald, 1857) [species] †Pseudasaphus limatus Jaanusson, 1953 [species] †Pseudasaphus tecticaudatus (Steinhardt, 1874) [species] †Pseudobasilicus brachyrachis (Törnquist, 1884) [species] †Pseudobasilicus kuckersiana (Schmidt, 1898) [species] †Pseudobasilicus lata (Angelin, 1851) [species] †Pseudobasilicus lawrowi (Schmidt, 1898) [species] †Pseudobasilicus nobilis (Barrande, 1846) [species] †Pseudogriphasaphus hunanensis Peng, 1992 [species] †Pseudomegalaspis formosa (Törnquist, 1884) [species] †Pseudomegalaspis patagiata (Törnquist, 1884) [species] †Ptychocephalus accliva (Hintze, 1952) [species] †Ptychocephalus declevita (Ross, 1951) [species] †Ptychocephalus elliptica Gunnell, 1933 [species] †Ptychocephalus fillmorensis Hintze, 1952 [species] †Ptychocephalus indentata Gunnell, 1933 [species] †Ptychocephalus typicalis Gunnell, 1933 [species] †Ptychocephalus vigilans Whittington, 1948 [species] †Ptychocephalus yersini Hintze, 1952 [species] †Stegnopsis erythragora Amati, 2014 [species] †Stegnopsis huttoni (Billings, 1865) [species] †Stegnopsis solitarius Whittington, 1965 [species] †Stegnopsis wellingensis Amati, 2014 [species] †Stenorhachis genalticurvatus (Hintze, 1952) [species] †Thysanopyge argentina Kayser, 1898 [species] †Thysanopyge clavijoi Harrington & Leanza, 1957 [species] †Thysanopyge latelimbata Harrington & Leanza, 1957 [species] †Trigonocerca typica Ross, 1951 [species] †Trigonocercella acuta Hintze, 1952 [species] †Vogdesia bearsi (Raymond, 1905) [species] †Vogdesia bromidensis (Esker, 1964) [species] †Vogdesia obtusus (Hall, 1847) [species] †Xenostegium franklinense Ross, 1951 [species] †Zhenganites xinjiangensis (Zhang, 1981) [species] †Zuninaspis acuminata Harrington & Leanza, 1957 [species] †Remopleurididae [family] †Aktugaiella acuminulata Ergaliev, 1980 [species] †Aktugaiella assurgentis Ergaliev, 1980 [species] †Aktugaiella hunanensis Peng, 1992 [species] †Amphitryon murchisonii Hawle & Corda, 1847 [species] †Amphitryon murchisoni Hawle & Corda, 1847 [species] †Apatokephalus exiguus Harrington & Leanza, 1957 [species] †Apatokephalus longifrons Dean, 1989 [species] †Apatokephalus nyaicus Rozova, 1968 [species] †Apatokephalus serratus Boeck, 1838 [species] †Blosyropsis billingsi Whittington, 1965 [species] †Dislobosaspis guizhouensis (Yin, 1978) [species] †Dislobosaspis zunyiensis (Yin, 1978) [species] †Eorobergia breviceps (Raymond, 1925) [species] †Eorobergia grandis Whittington, 1965 [species] †Eorobergia marginalis (Raymond, 1925) [species] †Hastiremopleurides bijieensis (Yin, 1980) [species] †Hastiremopleurides shihtzupuensis (Lu, 1957) [species] †Hypodicranotus striatulus (Walcott, 1875) [species] †Ivshinaspis crispa Petrunina, 1973 [species] †Ivshinaspis formosa Duan et al., 1999 [species] †Ivshinaspis reticulata Bao & Jago, 2000 [species] †Kainella conica Kobayashi, 1935 [species] †Kainella flagricauda (White, 1874) [species] †Kainella meridionalis Kobayashi, 1935 [species] †Lacorsalina bellatula Fortey, 1980 [species] †Mendosina laciniosa (Shergold, 1972) [species] †Menoparia elegans Dean, 1989 [species] †Menoparia genalunata Ross, 1951 [species] †Menoparia lunalata Ross, 1953 [species] †Pseudokainella armatus Hintze, 1952 [species] †Pseudokainella keideli Harrington, 1938 [species] †Pseudokainella lata Kobayashi, 1935 [species] †Pseudokainella pustulosa Harrington & Leanza, 1957 [species] †Remopleurella burmeisteri Bancroft, 1949 [species] †Remopleurides affluens Nikolaisen, 1983 [species] †Remopleurides angularis Young, 1973 [species] †Remopleurides asperulus Whittington, 1959 [species] †Remopleurides biaculeatus Tripp, 1954 [species] †Remopleurides broeggeri Owen, 1981 [species] †Remopleurides caelatus Whittington, 1959 [species] †Remopleurides canadensis Billings, 1865 [species] †Remopleurides caphyroides Whittington, 1959 [species] †Remopleurides colbii Portlock, 1843 [species] †Remopleurides darlecarlicus Holm, 1882 [species] †Remopleurides deani Nikolaisen, 1983 [species] †Remopleurides emarginatus Törnquist, 1884 [species] †Remopleurides eximius Whittington, 1959 [species] †Remopleurides granensis Stormer, 1945 [species] †Remopleurides inusitatus Nikolaisen, 1983 [species] †Remopleurides kullsbergensis Warburg, 1925 [species] †Remopleurides laevigatus Nikolaisen, 1983 [species] †Remopleurides latifrons Holm, 1882 [species] †Remopleurides latus Olin, 1906 [species] †Remopleurides ligulus Whittington, 1963 [species] †Remopleurides lunnerensis Nikolaisen, 1983 [species] †Remopleurides minimus Warburg, 1925 [species] †Remopleurides missouriensis Foerste, 1920 [species] †Remopleurides nikolaiseni Owen, 1981 [species] †Remopleurides occidens Phleger, 1933 [species] †Remopleurides pattersoni Chatterton & Ludvigsen, 1976 [species] †Remopleurides paucus Nikolaisen, 1983 [species] †Remopleurides perspicax Nikolaisen, 1983 [species] †Remopleurides pilulus Whittington, 1965 [species] †Remopleurides plaesiourus Whittington, 1959 [species] †Remopleurides simulus Whittington, 1959 [species] †Remopleurides variolaris Nikolaisen, 1983 [species] †Remopleuridiella caudalimbata Ross, 1951 [species] †Richardsonella variagranula Robison & Pantoja-Alor, 1968 [species] †Robergia barrandii (Nicholson & Etheridge, 1879) [species] †Robergia major Raymond, 1920 [species] †Robergia microphthalma Linnarsson, 1875 [species] †Robergia microphthalmus (Linnarsson, 1875) [species] †Robergia scanica Hadding, 1913 [species] †Robergia schlotheimi (Billings, 1865) [species] †Robergia sinensis Lu & Chang, 1974 [species] †Robergia sparsa Nikolaisen, 1983 [species] †Robergia striatella Nikolaisen, 1991 [species] †Robergiella brevilingua Fortey, 1980 [species] †Robergiella lundehukensis Fortey, 1980 [species] †Robergiella sagittalis Whittington, 1959 [species] †Robergiella tjernviki Hoel, 1999 [species] †Sculptaspis cordata Nikolaisen, 1983 [species] †Sculptaspis erratica Nikolaisen, 1983 [species] †Sculptaspis impolita Nikolaisen, 1983 [species] †Sculptaspis insculpta Nikolaisen, 1983 [species] †Sculptaspis pannucea Nikolaisen, 1983 [species] †Sculptaspis sexlineata Angelin, 1851 [species] †Sculptella angustilingua Nikolaisen, 1983 [species] †Sculptella nonscripta Nikolaisen, 1983 [species] †Sculptella scripta Nikolaisen, 1983 [species] †Sculptella scriptoides Nikolaisen, 1983 [species] †Sunocavia dactyloides (Guo & Duan, 1978) [species] †Taishania bassifrons Dean, 2006 [species] †Ceratopygidae [family] †Asiocephalus sulcatus (Lisogor, 1970) [species] †Ceratopyge forficuloides Harrington & Leanza, 1957 [species] †Charchaqia glabrescens Peng, 1992 [species] †Charchaqia halli Jago, 1991 [species] †Charchaqia norini Troedsson, 1937 [species] †Diceratopyge distalis Peng, 1992 [species] †Diceratopyge elongata Peng, 1983 [species] †Diceratopyge mobergi Troedsson, 1937 [species] †Diceratopyge obesa Peng, 1983 [species] †Dichelepyge pascuali Harrington & Leanza, 1952 [species] †Haniwoides brevicus Zhang et al., 1980 [species] †Haniwoides longus Kobayashi, 1935 [species] †Hedinaspis regalis (Troedsson, 1937) [species] †Hedinaspis shengi Lu, 1964 [species] †Hedinaspis uniformis Bao & Jago, 2000 [species] †Hunanopyge sejuncta Peng, 1984 [species] †Lopnorites grabaui (Troedsson, 1937) [species] †Lopnorites posterolateralis Peng, 1992 [species] †Macropyge gladiator Ross, 1951 [species] †Nannopeltis modesta Harrington, 1938 [species] †Onychopyge argentina Harrington & Leanza, 1957 [species] †Onychopyge longispina Harrington & Leanza, 1957 [species] †Onychopyge plagiacantha Harrington & Leanza, 1957 [species] †Onychopyge riojana Harrington, 1938 [species] †Onychopyge sculptura Robison & Pantoja-Alor, 1968 [species] †Proceratopyge conifrons Wallerius, 1895 [species] †Proceratopyge cylindrica Chien, 1961 [species] †Proceratopyge distensa Lu & Lin, 1989 [species] †Proceratopyge fenghwangensis Hsiang, 1963 [species] †Proceratopyge fuyangensis Lu & Lin, 1987 [species] †Proceratopyge incondita Harrington & Leanza, 1957 [species] †Proceratopyge longa Bao & Jago, 2000 [species] †Proceratopyge mirabilis Lu & Lin, 1989 [species] †Proceratopyge promisca Choi et al., 2008 [species] †Proceratopyge protracta Peng, 1992 [species] †Proceratopyge tenuita Lazarenko, 1966 [species] †Proceratopyge truncata Yang, 1977 [species] †Proceratopyge waergangensis Peng, 1992 [species] †Proceratopyge zhejiangensis Lu & Lin, 1989 [species] †Proceratopyge (Sinoproceratopyge) changshanensis Lu & Lin, 1989 [species] †Proceratopyge (Sinoproceratopyge) constrictus (Lu, 1964) [species] †Proceratopyge (Sinoproceratopyge) distincta Lu & Lin, 1989 [species] †Proceratopyge (Sinoproceratopyge) kiangshanensis (Lu, 1964) [species] †Proceratopyge (Sinoproceratopyge) sinuata Lu & Lin, 1989 [species] †Promacropyge carinata (Lu, 1964) [species] †Promacropyge linearis Peng, 1992 [species] †Pseudohysterolenus infidus Harrington & Leanza, 1957 [species] †Pseudoyuepingia asaphoides (Kobayashi, 1962) [species] †Pseudoyuepingia brevica Lu & Lin, 1989 [species] †Pseudoyuepingia carinalis Peng, 1992 [species] †Pseudoyuepingia elongata Lu & Lin, 1989 [species] †Pseudoyuepingia intermedia Lu & Lin, 1989 [species] †Pseudoyuepingia jiantangensis Duan et al., 1999 [species] †Pseudoyuepingia laochatianensis Yang, 1977 [species] †Pseudoyuepingia zhejiangensis Lu & Lin, 1980 [species] †Tamdaspis tamdensis Lisogor, 1977 [species] †Tropidopyge alveus Fortey, 1974 [species] †Tropidopyge hunanensis Peng, 1992 [species] †Tropidopyge laevis Ergaliev, 1980 [species] †Yuepingia brevica Lu & Zhu, 1980 [species] †Yuepingia minor Peng, 1992 [species] †Yuepingioides ocellata (Lu & Lin, 1980) [species] †Yuepingioides parallelus Lu & Lin, 1983 [species] †Chondranomocare australis Palmer & Gatehouse, 1972 [species] †Cyclopygidae [family] †Cyclopyge recurva Lu, 1962 [species] †Microparia (Microparia) acuta (Zhang, 1981) [species] †Microparia (Quadratapyge) chedaoensis Zhou & Dean, 1986 [species] †Microparia (Quadratapyge) latilimbata Zhou in Zhou et al., 1977 [species] †Phylacops bituberculatus Weir, 1959 [species] †Pricyclopyge prisca (Barrande, 1872) [species] †Pricyclopyge synophthalma Kloucek, 1916 [species] †Sagavia laxa Zhou et al., 2014 [species] †Symphysops djebaglensis (Kolova, 1936) [species] †Cyclopygoidea [superfamily] †Symphysurinidae [family] †Eurysymphysurina spora Fortey & Bruton, 2013 [species] †Randaynia langdoni Boyce, 1989 [species] †Randaynia leatherburyi Loch, 2007 [species] †Randaynia saundersi Boyce, 1989 [species] †Dikelocephalidae [family] †Berkeia glabellamersa Wilson, 1949 [species] †Berkeia typica Resser, 1937 [species] †Dikelocephalus halli Ulrich & Resser, 1930 [species] †Dikelocephalus tribulus Walcott, 1912 [species] †Dikelocephalus wisconensis Ulrich & Resser, 1930 [species] †Monocheilus anatinum (Hall, 1863) [species] †Monocheilus micros (Walter, 1926) [species] †Neoiranella latefrons (King, 1937) [species] †Pterocephalops acrophthalma Rasetti, 1944 [species] †Stigmacephalus flexifrons Feniak, 1952 [species] †Stigmacephalus hudsonensis Nelson, 1951 [species] †Dionididae [family] †Dionidella incisa Prantl & Přibyl, 1949 [species] †Dionidella venusta Zhou et al., 2014 [species] †Dionide formosa (Barrande, 1846) [species] †Dionide holdeni Raymond, 1925 [species] †Dionide magnifica Owen & Bruton, 1980 [species] †Dionide mareki Henry & Romano, 1978 [species] †Dionide miaopoensis Lu, 1975 [species] †Dionide semicircula Owen, 1981 [species] †Ectenaspis beckeri (Slocom, 1913) [species] †Ectenaspis burkhalteri Amati, 2014 [species] †Emanuelaspis (Emanuelaspis) nicolli Laurie & Shergold, 1996 [species] †Emanuelaspis (Emanuelaspis) teicherti (Legg, 1976) [species] †Emanuelaspis (Emanuelina) expansa Laurie & Shergold, 1996 [species] †Emanuelaspis (Emanuelina) peculiaris Laurie & Shergold, 1996 [species] †Endymioniidae [family] †Anisonotella glacialis (Billings, 1865) [species] †Carinocranium cariniferum Dean, 1989 [species] †Endymionia clavaria Fortey, 1975 [species] †Endymionia meeki Billings, 1865 [species] †Endymionia raymondi Whittington, 1965 [species] †Endymionia schucherti Raymond, 1925 [species] †Endymionia semielliptica Chang & Fan, 1960 [species] †Salteria americana Cooper, 1953 [species] †Eurekiidae [family] †Corbinia horatio Walcott, 1924 [species] †Hungaiidae [family] †Hungioides acutinasus Fortey & Shergold, 1984 [species] †Idahoiidae [family] †Comanchia minus Palmer, 1965 [species] †Comanchia perincerta Rozova, 1968 [species] †Idahoia serapio Walcott, 1924 [species] †Idahoia wisconsensis (Owen, 1852) [species] †Langyashania distincta Lu & Zhu, 1980 [species] †Langyashania transversa Lu & Zhu, 1980 [species] †Maladioidella hunanensis Peng, 1992 [species] †Maladioidella laevigata (Zhang, 1981) [species] †Maladioidella splendens Endo, 1937 [species] †Saratogia hamula (Owen, 1852) [species] †Wilbernia explanatus (Whitfield, 1880) [species] †Wilbernia pero (Walcott, 1890) [species] †Liostracinidae [family] †Aplexura pulchella Rozova, 1963 [species] †Liostracina bella Lin et al., 1983 [species] †Liostracina bilimbata Zhang, 1983 [species] †Liostracina krausei Monke, 1903 [species] †Liostracina suixiensis Bi, 1983 [species] †Lycophron rex Fortey & Shergold, 1984 [species] †Mioptychopyge trinodosa (Zhang, 1981) [species] †Monkaspididae [family] †Liaoningaspis taitzehoensis Chu, 1959 [species] †Liaoningaspis zhongjingensis Zhang & Wang, 1986 [species] †Metopotropis sinensis Peng et al., 2004 [species] †Monkaspis daulis (Walcott, 1905) [species] †Monkaspis neimonggolensis Zhang, 1985 [species] †Monkaspis quadrata Yang, 1977 [species] †Monkaspis serrata Chu, 1959 [species] †Monkaspis serratus Meng, 1977 [species] †Walcottaspidella suni Chu, 1959 [species] †Nileidae [family] †Borthaspidella gaspensis Rasetti, 1954 [species] †Illaenopsis stenorhachis Harrington, 1938 [species] †Illaenopsis thomsoni Salter, 1866 [species] †Kodymaspis limena Šnajdr, 1984 [species] †Nileus affinis Billings, 1865 [species] †Nileus amplus Zhou et al., 2014 [species] †Nileus depressus Boeck, 1838 [species] †Nileus exarmatus Tjernvik, 1956 [species] †Nileus gabata Dean, 1973 [species] †Nileus glazialis (Schrank, 1973) [species] †Nileus hesperaffinis Ross & Barnes, 1967 [species] †Nileus lacunosa Whittington, 1965 [species] †Nileus macrops Billings, 1865 [species] †Nileus orbiculatoides (Schrank, 1972) [species] †Nileus orbiculatus Tjernvik, 1956 [species] †Nileus petilus Xia, 1978 [species] †Nileus planiceps Nielsen, 1995 [species] †Nileus porosus Fortey, 1975 [species] †Nileus preandinus Harrington & Leanza, 1957 [species] †Nileus scrutator Billings, 1865 [species] †Nileus walcotti Endo, 1932 [species] †Paraperaspis angustus Zhou et al., 2014 [species] †Paraperaspis convergens (Lu, 1975) [species] †Paraperaspis dawangouensis Zhou et al., 2014 [species] †Peraspis erugata Ross, 1970 [species] †Peraspis kolouros Norford & Ross, 1978 [species] †Peraspis lineolata (Raymond, 1925) [species] †Peraspis omega Fortey, 1975 [species] †Peraspis yukonensis Dean, 1973 [species] †Poronileus fistulosus Fortey, 1975 [species] †Poronileus isoteloides Fortey, 1975 [species] †Poronileus jugatus Fortey, 1975 [species] †Poronileus vallancei Fortey, 1975 [species] †Symphysurina brevis Fortey, 1983 [species] †Symphysurina elegans Poulsen, 1937 [species] †Symphysurina globocapitella Hintze, 1952 [species] †Symphysurina goniura (Billings, 1860) [species] †Symphysurina robusta Poulsen, 1937 [species] †Symphysurina spicata Ulrich in Walcott, 1925 [species] †Symphysurina uncaspicata Hintze, 1952 [species] †Symphysurina walcotti Kindle, 1929 [species] †Symphysurus angustatus (Sars & Boeck, 1838) [species] †Symphysurus arcticus Fortey, 1975 [species] †Symphysurus palpebrosus (Barrande, 1852) [species] †Troedssonia wimani (Troedsson, 1937) [species] †Varvia breviceps (Angelin, 1854) [species] †Norasaphus (Norasaphites) monroeae Fortey & Shergold, 1984 [species] †Norasaphus (Norasaphites) vesiculosus Fortey & Shergold, 1984 [species] †Norasaphus (Norasaphus) skalis Fortey & Shergold, 1984 [species] †Norasaphus (Shergoldina) greenvalensis Feist & Talent, 2000 [species] †Parabolinoididae [family] †Abdulinaspis concinnus Ergaliev, 1980 [species] †Pesaiella obnixa Rozova, 1964 [species] †Pesaiella perfida (Chernysheva, 1960) [species] †Taenicephalus polyaricus Rozova, 1963 [species] †Psalaspis marginata (Feniak, 1952) [species] †Psalaspis patersoni (Hall, 1863) [species] †Pterocephaliidae [family] †Anechocephalus spinosus Palmer, 1965 [species] †Anechocephalus trigranulatus Palmer, 1960 [species] †Bromella veritas Palmer, 1965 [species] †Camaraspis singula Rozova, 1963 [species] †Cernuolimbus depressus Palmer, 1960 [species] †Cernuolimbus granulosus Palmer, 1965 [species] †Cernuolimbus laevifrons Palmer, 1965 [species] †Cernuolimbus orygmatos Palmer, 1960 [species] †Cernuolimbus semigranulosus Palmer, 1960 [species] †Cilia plectrifera Peng, 1992 [species] †Dikelocephalites flabelliformis Sun, 1935 [species] †Dikelocephalites gongxianensis Meng, 1977 [species] †Housia ovata Palmer, 1960 [species] †Labiostrella superna Rozova, 1968 [species] †Labiostrella vera Rozova, 1964 [species] †Metachangshania brachypyga Choi et al., 2008 [species] †Morosa brevispina Palmer, 1965 [species] †Morosa extensa Palmer, 1965 [species] †Morosa longispina Palmer, 1960 [species] †Parahousia constricta Palmer, 1960 [species] †Parahousia subequalis Palmer, 1965 [species] †Paramaladioidella subconica Lu & Zhu, 1980 [species] †Pauciella prima (Lazarenko, 1960) [species] †Pedinocephalites divulgatus (Lazarenko, 1960) [species] †Pedinocephalites minimus Rozova, 1964 [species] †Plesiocilia minuta Yuan & Yin, 1998 [species] †Prehousia alata Palmer, 1960 [species] †Prehousia diverta Palmer, 1965 [species] †Prehousia impolita Palmer, 1965 [species] †Prehousia indenta Palmer, 1965 [species] †Prehousia prima Palmer, 1965 [species] †Prehousia semicircularis Palmer, 1960 [species] †Proapatokephaloides longiformis Ergaliev, 1980 [species] †Prodikelocephalites mesembrinus Yuan & Yin, 1998 [species] †Protemnites waergangensis Peng, 1992 [species] †Pseudaphelaspis (Arrhenaspis) elongatus Qian, 1985 [species] †Pseudaphelaspis (Arrhenaspis) latilimbatus Qian, 1985 [species] †Pseudaphelaspis langyashanensis Lu & Zhu, 1980 [species] †Pseudaphelaspis latus Lu & Zhu, 1980 [species] †Pseudaphelaspis obscurus Lu & Zhu, 1980 [species] †Pseudaphelaspis transversus Lu & Zhu, 1980 [species] †Pterocephalia concava Palmer, 1960 [species] †Pterocephalia elongata Palmer, 1960 [species] †Pterocephalia punctata Palmer, 1965 [species] †Pterocephalia tenura Rozova, 1963 [species] †Sigmocheilus compressus Palmer, 1968 [species] †Sigmocheilus flabellifer (Hall & Whitfield, 1877) [species] †Sigmocheilus grata (Resser, 1942) [species] †Sigmocheilus pogonipensis (Resser, 1942) [species] †Strigambitus bilobus Palmer, 1965 [species] †Strigambitus blepharina Palmer, 1965 [species] †Strigambitus transversus Palmer, 1965 [species] †Strigambitus utahensis (Resser, 1942) [species] †Tumicephalus depressus Palmer, 1965 [species] †Yangweizhouia carinata Yuan & Yin, 1998 [species] †Yingziaspis erdaogouensis Zhang, 1999 [species] †Ptychaspididae [family] †Changia chinensis Sun, 1924 [species] †Ptychaspis granulosa (Owen, 1852) [species] †Ptychaspis miniscaensis (Owen, 1852) [species] †Ptychaspis subglobosa Grabau, 1924 [species] †Ptychaspis tuberosa Feniak, 1952 [species] †Raphiophoridae [family] †Ampyxella aculeata Angelin, 1854 [species] †Ampyxina bellatula (Savage, 1917) [species] †Ampyxina lanceola Whittington, 1959 [species] †Ampyxina powelli (Raymond, 1925) [species] †Ampyxinella rotundata Zhang, 1979 [species] †Ampyxoides inermis Fortey, 1975 [species] †Ampyxoides occipitalis Dean, 1973 [species] †Ampyxoides semicostatus (Billings, 1865) [species] †Ampyx abnormalis Yi, 1957 [species] †Ampyx compactus Ross & Barnes, 1967 [species] †Ampyx delicatulus Fortey, 1975 [species] †Ampyx foveolatus Angelin, 1854 [species] †Ampyx laeviusculus Billings, 1865 [species] †Ampyx lobatus Cooper, 1953 [species] †Ampyx porcus Fortey, 1975 [species] †Ampyx punctolineatus Zhou & Fortey, 1986 [species] †Ampyx spongiosus Fortey, 1975 [species] †Ampyx toxotis Fortey, 1975 [species] †Ampyx virginiensis Cooper, 1953 [species] †Ampyx walcotti Kobayashi, 1955 [species] †Edmundsonia typa Cooper, 1953 [species] †Globampyx sinalae Norford & Ross, 1978 [species] †Globampyx trinucleoides Fortey, 1975 [species] †Kanlingia kalpinensis Zhang, 1981 [species] †Lonchodomas carinatus Cooper, 1953 [species] †Lonchodomas chaziensis Shaw, 1968 [species] †Lonchodomas clavulus Whittington, 1965 [species] †Lonchodomas depressus (Brogger, 1887) [species] †Lonchodomas halli (Billings, 1861) [species] †Lonchodomas normalis (Billings, 1865) [species] †Lonchodomas paenepennatus Ross, 1970 [species] †Lonchodomas pennatus Latouche, 1884 [species] †Lonchodomas punctatus Cooper, 1953 [species] †Lonchodomas retrolatus Ross & Barnes, 1967 [species] †Lonchodomas rostratus (Sars, 1835) [species] †Lonchodomas suriensis Harrington & Leanza, 1957 [species] †Lonchodomas tenuis Nielsen, 1995 [species] †Lonchodomas tumidus (Forbes, 1849) [species] †Lonchodomas yohi (Sun, 1931) [species] †Mendolaspis doidyx Fortey, 1975 [species] †Mendolaspis paradoidyx Zhang, 1981 [species] †Mendolaspis salagastensis Rusconi, 1951 [species] †Nanshanaspis levis Chang & Fan, 1960 [species] †Nanshanaspis rotundata (Zhang, 1988) [species] †Nanshanaspis tarimuensis (Zhang, 1981) [species] †Raphiophorus lamasi Harrington & Leanza, 1957 [species] †Raymondella elegans (Cooper, 1953) [species] †Raymondella macconochiei (Nicholson & Etheridge, 1879) [species] †Raymondella nevadensis Ross & Shaw, 1972 [species] †Rhombampyx glaber (Poulsen, 1965) [species] †Rhombampyx rhombos Fortey, 1975 [species] †Rhombampyx tragula Fortey, 1975 [species] †Rhombampyx yii (Lu, 1965) [species] †Taklamakania granulosus (Zhang, 1981) [species] †Taklamakania tarimensis Zhang, 1979 [species] †Taklamakania xinjiangensis (Zhang, 1981) [species] †Rhyssometopidae [family] †Qiandongaspis qiandongensis Yuan & Yin, 1998 [species] †Rhyssometopus (Rostrifinis) nitidus Duan, 2004 [species] †Saukiidae [family] †Calvinella lira Qian, 1985 [species] †Diemanosaukia miserabilis Jago & Corbett, 1990 [species] †Linguisaukia affinis Peng, 1984 [species] †Lophosaukia jiangnanensis Lu & Lin, 1983 [species] †Lophosaukia rectangulata Ergaliev, 1980 [species] †Mictosaukia combinata Peng, 1992 [species] †Mictosaukia luanhensis Zhou & Zhang, 1978 [species] †Mictosaukia maculata Qian, 1985 [species] †Mictosaukia orientalis (Resser & Endo, 1937) [species] †Prosaukia ambigua Ulrich & Resser, 1933 [species] †Prosaukia diversa Chien, 1974 [species] †Prosaukia misa (Owen, 1852) [species] †Prosaukia spinula Taylor & Halley, 1974 [species] †Pseudocalvinella spinosa Qiu, 1984 [species] †Saukia crassa Qian, 1985 [species] †Saukia enshiensis Chu, 1974 [species] †Saukia globosa Robison & Pantoja-Alor, 1968 [species] †Saukia jingxianensis Chien, 1974 [species] †Saukia reflexa Qian, 1985 [species] †Saukiella baikadamica Ergaliev, 1980 [species] †Saukiella diversa Qiu, 1984 [species] †Suluderella mukazegata (Kobayashi, 1942) [species] †Scinocephalus quadrihastatus Ross, 1953 [species] †Scinocephalus solitecti Ross, 1951 [species] †Taihungshaniidae [family] †Asaphopsis intermedia Harrington & Leanza, 1957 [species] †Trinucleidae [family] †Broeggerolithus broeggeri Bancroft, 1929 [species] †Broeggerolithus discors Angelin, 1854 [species] †Broeggerolithus nicholsoni (Reed, 1910) [species] †Cryptolithoides reticulatus Ross & Shaw, 1972 [species] †Cryptolithus bellulus (Ulrich, 1879) [species] †Cryptolithus lorettensis Foerste, 1924 [species] †Cryptolithus recurvus Ulrich, 1919 [species] †Cryptolithus tesselatus Green, 1832 [species] †Deanaspis bedinanensis Dean, 1967 [species] †Eotrinucleus antiquus Peng, 1992 [species] †Famatinolithus noticus Harrington & Leanza, 1957 [species] †Guandacolithus furquei Harrington & Leanza, 1957 [species] †Kimakaspis kovalevskyi Ghobadi Pour et al., 2011 [species] †Marrolithus orthogonius Dean, 1967 [species] †Nankinolithus granulatus (Wahlenberg, 1818) [species] †Tretaspis anderssoni Stormer, 1945 [species] †Tretaspis askerensis Owen, 1980 [species] †Tretaspis ceriodes Angelin, 1854 [species] †Tretaspis hadelandica Stormer, 1945 [species] †Tretaspis hisingeri Owen, 1980 [species] †Tretaspis kiaeri Stormer, 1930 [species] †Tretaspis latilimbus Linnarsson, 1869 [species] †Tretaspis moeldenensis Cave, 1960 [species] †Tretaspis sagenosus Whittington, 1959 [species] †Tretaspis seticornis (Hisinger, 1840) [species] †Tretaspis sortita Reed, 1935 [species] †Trinucleus seticornis (Hisinger, 1840) [species] †Aulacopleurida [order] †Hystricuridae [family] †Amblycranium cornutum Ross, 1951 [species] †Amblycranium linearus Young, 1973 [species] †Amblycranium populus Ross, 1951 [species] †Amblycranium variabile Ross, 1951 [species] †Flectihystricurus acumennasus (Ross, 1951) [species] †Flectihystricurus flectimembrus (Ross, 1951) [species] †Flectihystricurus wilsoni (Gobbett, 1960) [species] †Genalaticurus genalatus (Ross, 1951) [species] †Hillyardina levis Boyce, 1989 [species] †Hillyardina marginauctum (Ross, 1951) [species] †Hillyardina minuspustulata Boyce, 1989 [species] †Hillyardina semicylindrica Ross, 1951 [species] †Hillyardina tasmaniensis (Jell & Stait, 1985) [species] †Hintzecurus paragenalatus (Ross, 1951) [species] †Hystricurus conicus (Billings, 1859) [species] †Hystricurus contractus Ross, 1951 [species] †Hystricurus crassilimbatus Poulsen, 1937 [species] †Hystricurus deflectus Heller, 1954 [species] †Hystricurus elevatus Heller, 1954 [species] †Hystricurus oculilunatus Ross, 1951 [species] †Hystricurus robustus Ross, 1951 [species] †Hystricurus sulcatus Poulsen, 1937 [species] †Ibexicurus hillyardensis (Stitt, 1983) [species] †Ibexicurus parsonsi Adrain et al., 2003 [species] †Lavadamia joplinae Adrain et al., 2003 [species] †Metabowmania braggi Adrain & Westrop, 2007 [species] †Metabowmania latilimbata Kobayashi, 1955 [species] †Metabowmania morgani Adrain & Westrop, 2007 [species] †Millardicurus armatus (Poulsen, 1937) [species] †Millardicurus housensis Adrain & Westrop, 2006 [species] †Millardicurus longicephalus (Poulsen, 1927) [species] †Millardicurus millardensis (Hintze, 1952) [species] †Millardicurus nudus (Poulsen, 1937) [species] †Millardicurus paramillardensis Adrain & Westrop, 2006 [species] †Millardicurus ravni (Poulsen, 1927) [species] †Nyaya grata Rozova, 1968 [species] †Nyaya nyaensis Rozova, 1963 [species] †Pachycranium faciclunis Ross, 1951 [species] †Paenebeltella vultulata Ross, 1951 [species] †Parahystricurus bispicatus Hintze, 1952 [species] †Parahystricurus carinatus Ross, 1951 [species] †Parahystricurus fraudator Ross, 1951 [species] †Parahystricurus oculirotundus Ross, 1951 [species] †Parahystricurus pustulosus Ross, 1951 [species] †Parahystricurus smithiae Boyce, 1989 [species] †Paraplethopeltis cordai (Billings, 1859) [species] †Paraplethopeltis genacurvus Hintze, 1952 [species] †Paraplethopeltis genarectus Hintze, 1952 [species] †Paraplethopeltis minuta Heller, 1954 [species] †Politicurus politus (Ross, 1951) [species] †Psalikilus paraspinosum Hintze, 1952 [species] †Psalikilus pikum Hintze, 1952 [species] †Psalikilus spinosum Hintze, 1952 [species] †Psalikilus typicum Ross, 1951 [species] †Rollia goodwini Cullison, 1944 [species] †Rossicurus lepidus (Hintze, 1952) [species] †Svalbardicurus delicatus Fortey & Bruton, 2013 [species] †Tersella sainsburyi (Ross, 1965) [species] †Bathynotidae [family] †Myopsolenites boutiouiti Geyer & Landing, 2004 [species] †Corynexochida [order] †Amgaspididae [family] †Eodontopleura primitiva Zhang et al., 1980 [species] †Paramgaspis guizhouensis Yuan et al., 1997 [species] †Aksayaspis convexus Ergaliev, 2001 [species] †Cheilocephalus brachyops Palmer, 1965 [species] †Cheilocephalus granulosus Palmer, 1965 [species] †Eotaitzuia shuiyuensis Zhang et al., 1980 [species] †Oligometopus contractus Palmer, 1965 [species] †Parakoldinia kureiskaya Rozova, 1963 [species] †Parakoldinia paichiaensis (Kobayashi, 1933) [species] †Parakoldinia salairica (Sivov, 1955) [species] †Parakoldinia shenjiawanensis Peng, 1992 [species] †Parakoldinia striata Rozova, 1960 [species] †Parakoldinia tholimorpha Peng, 1992 [species] †Pseudokingstonia exotica Palmer, 1965 [species] †Pseudokoldinia gloriosa Rozova, 1968 [species] †Chengkouia constricta Zhu & Lin, 1983 [species] †Chengkouia pustulosa Zhang et al., 1980 [species] †Chengkouia tianshanensis Zhu & Lin, 1983 [species] †Chengkouia xinjiangensis Zhu & Lin, 1983 [species] †Chengkouiidae [family] †Acanthomicmacca ellipsocephaloides (Cobbold, 1910) [species] †Acanthomicmacca walcotti (Mathew, 1899) [species] †Acanthomicmacca (Acanthomicmacca) franconica Geyer, 2016 [species] †Micmacca comleyensis Cobbold, 1931 [species] †Micmacca protolenoides Cobbold, 1931 [species] †Xiuqiella rectangula Chien & Yao, 1974 [species] †Corynexochidae [family] †Chatiania chatianensis Yang, 1977 [species] †Chatiania convexa Peng et al., 2004 [species] †Chatiania expansa (Yuan & Yin, 1998) [species] †Chatiania (Eochatiania) laevigata (Yuan & Yin, 1998) [species] †Corynexochina sinensis Peng et al., 2004 [species] †Corynexochina weberi Lermontova, 1940 [species] †Corynexochus chinensis Lin & Zhang, 1979 [species] †Corynexochus donggouensis Lin & Zhang, 1979 [species] †Corynexochus elongatus Yang et al., 1993 [species] †Corynexochus eosimplex Yang et al., 1993 [species] †Corynexochus hunanensis Duan et al., 1999 [species] †Corynexochus plumula Whitehouse, 1939 [species] †Corynexochus xiangxiensis Peng et al., 2004 [species] †Dinesidae [family] †Aldanianus mitis (Repina, 1964) [species] †Erbia granulosa Lermontova, 1940 [species] †Haydenaspis parvatya Peng et al., 2009 [species] †Proerbia sinensis Duan & An, 2001 [species] †Dolichometopidae [family] †Amphoton alceste (Walcott, 1905) [species] †Amphoton deois (Walcott, 1905) [species] †Amphoton oatesi Palmer & Gatehouse, 1972 [species] †Amphoton typicum (Kobayashi, 1942) [species] †Anoria lodensis (Resser, 1928) [species] †Athabaskia glacialis Raymond, 1928 [species] †Athabaskia ostheimeri Raymond, 1928 [species] †Clavaspidella minor Resser, 1938 [species] †Corynexochides prolatus Fritz, 1968 [species] †Deiradonyx tongrenensis Yang et al., 2009 [species] †Dolichometopus productus (Hall & Whitfield, 1877) [species] †Dolichometopus rarus Billings, 1865 [species] †Fuchouia bulba Peng et al., 2004 [species] †Fuchouia chiai Lu, 1957 [species] †Fuchouia kuruktagensis Zhang, 1981 [species] †Fuchouia oratolimba Yang, 1977 [species] †Fuchouia sixinensis Peng et al., 2004 [species] †Fuchouia (Parafuchouia) elongata Lu & Qian, 1974 [species] †Fuchouia (Parafuchouia) prompta (Zhou, 1974) [species] †Fuchouia (Parafuchouia) quadratoglabella Yang et al., 1993 [species] †Glossopleura gigantea Resser, 1939 [species] †Glossopleura intermedia Resser, 1938 [species] †Glossopleura similaris Resser, 1939 [species] †Hoffetella quadrata Zhang et al., 1980 [species] †Poliella leipalox Fritz, 1968 [species] †Shanghaia typicalis Xu & Ju, 1987 [species] †Dorypygidae [family] †Bathyuriscus brighamensis Resser, 1939 [species] †Bathyuriscus howelli Walcott, 1886 [species] †Bathyuriscus maximus Mason, 1935 [species] †Bathyuriscus ornatus Walcott, 1908 [species] †Bathyuriscus petalus Fritz, 1968 [species] †Bathyuriscus (Kootenia) aculacauda Fritz, 1968 [species] †Bathyuriscus (Kootenia) bolis Zhang et al., 1980 [species] †Bathyuriscus (Kootenia) boucheri Shaw, 1957 [species] †Bathyuriscus (Kootenia) crassa Fritz, 1968 [species] †Bathyuriscus (Kootenia) crassinucha Fritz, 1968 [species] †Bathyuriscus (Kootenia) dawsoni (Walcott, 1889) [species] †Bathyuriscus (Kootenia) diutina Fritz, 1972 [species] †Bathyuriscus (Kootenia) fida Zhang et al., 1980 [species] †Bathyuriscus (Kootenia) fuyangensis Ju, 1983 [species] †Bathyuriscus (Kootenia) gracilens Zhu, 1987 [species] †Bathyuriscus (Kootenia) gracilis Resser, 1939 [species] †Bathyuriscus (Kootenia) henglinheensis Yang et al., 1993 [species] †Bathyuriscus (Kootenia) idahoensis Resser, 1939 [species] †Bathyuriscus (Kootenia) jialaoensis (Lu & Chien, 1978) [species] †Bathyuriscus (Kootenia) longa Ju, 1983 [species] †Bathyuriscus (Kootenia) mathewsi Resser, 1939 [species] †Bathyuriscus (Kootenia) sanwanensis Zhou, 1974 [species] †Bathyuriscus (Kootenia) shangwanensis Ju, 1983 [species] †Bathyuriscus (Kootenia) shanxiensis Zhang et al., 1980 [species] †Bathyuriscus (Kootenia) spencei Resser, 1939 [species] †Bathyuriscus (Kootenia) styrax Palmer & Gatehouse, 1972 [species] †Bathyuriscus (Kootenia) yichunensis Duan & An, 2001 [species] †Bathyuriscus (Kootenia) yui Chang, 1963 [species] †Bonnia caperata Palmer, 1964 [species] †Bonnia carnata Fritz, 1991 [species] †Bonnia copia Fritz, 1968 [species] †Bonnia decora Fritz, 1991 [species] †Bonnia laterispina Fritz, 1972 [species] †Bonnia quadrata Fritz, 1991 [species] †Bonnima semidiscoidea Fritz, 1991 [species] †Dorypyge bisulcata Peng et al., 2004 [species] †Dorypyge globosa Peng et al., 2004 [species] †Dorypyge huaqiaoensis Peng et al., 2004 [species] †Dorypyge kunshanensis Qian & Zhou, 1984 [species] †Dorypyge lakei Cobbold, 1911 [species] †Dorypyge perconvexalis Yang, 1977 [species] †Dorypyge pergranosa Resser & Endo, 1937 [species] †Dorypyge qinlingensis Yang et al., 1993 [species] †Dorypyge quadriceps (Hall & Whitfield, 1877) [species] †Dorypyge richthofeniformis Lermontova, 1940 [species] †Dorypyge richthofeni Dames, 1883 [species] †Dorypyge shanxiensis Zhang et al., 1980 [species] †Holyoakia simpsoni Paterson & Jago, 2006 [species] †Olenoides abnormis Yuan et al., 1997 [species] †Olenoides brighamensis Resser, 1939 [species] †Olenoides comptus Repina, 1975 [species] †Olenoides evansi Resser, 1939 [species] †Olenoides hubeiensis (Sun, 1984) [species] †Olenoides octaspinus Yuan et al., 1997 [species] †Olenoides paraptus Zhao et al., 1994 [species] †Olenoides steptoensis Fritz, 1968 [species] †Shipaiella pyriformis Zhang et al., 1980 [species] †Strettonia comleyensis Cobbold, 1931 [species] †Illaenidae [family] †Bumastus (Bumastella) aspera Kobayashi & Hamada, 1974 [species] †Bumastus (Bumastella) bipunctatus Kobayashi & Hamada, 1974 [species] †Bumastus (Bumastella) spiculus Kobayashi & Hamada, 1974 [species] †Bumastus (Bumastoides) aplatus (Raymond, 1925) [species] †Bumastus (Bumastoides) billingsi (Raymond & Narraway, 1908) [species] †Bumastus (Bumastoides) gardenensis Shaw, 1968 [species] †Bumastus (Bumastoides) lenzi (Chatterton & Ludvigsen, 1976) [species] †Bumastus (Bumastoides) milleri (Billings, 1859) [species] †Bumastus agmakros Kobayashi et al., 1984 [species] †Bumastus barriensis Volborth, 1864 [species] †Bumastus cuniculus (Hall, 1868) [species] †Bumastus dayi Raymond, 1916 [species] †Bumastus decipiens Raymond, 1916 [species] †Bumastus graftonensis (Meek & Worthen, 1870) [species] †Bumastus indeterminatus (Walcott, 1879) [species] †Bumastus insignis (Hall, 1865) [species] †Bumastus ioxus (Hall, 1868) [species] †Bumastus kattoi Kobayashi et al., 1984 [species] †Bumastus niagarensis (Whitfield, 1879) [species] †Bumastus nudus Angelin, 1854 [species] †Bumastus orbicaudatus (Billings, 1859) [species] †Bumastus rowleyi Foerste, 1920 [species] †Bumastus sakoi Kobayashi et al., 1984 [species] †Bumastus tenuis Raymond, 1916 [species] †Bumastus trentonensis (Emmons, 1842) [species] †Bumastus vulsus Howells, 1982 [species] †Bumastus (Bumastus) glomerosus Kobayashi & Hamada, 1974 [species] †Bumastus (Bumastus) subquadratus Kobayashi & Hamada, 1974 [species] †Dysplanus centrotus (Dalman, 1843) [species] †Eastonillaenus goonumblaensis Edgecombe & Webby, 2007 [species] †Eastonillaenus incertus (Webby, 1973) [species] †Harpillaenus arcuatus (Billings, 1865) [species] †Harpillaenus rossi Fortey & Droser, 1999 [species] †Hyboaspis depressa Raymond, 1925 [species] †Illaenus alveatus Raymond, 1925 [species] †Illaenus auriculatus Ross & Barnes, 1967 [species] †Illaenus avus Holm, 1882 [species] †Illaenus bayfieldi Billings, 1859 [species] †Illaenus bucculentus Whittington, 1963 [species] †Illaenus cekovioides Zhou et al., 2014 [species] †Illaenus consimilis Billings, 1865 [species] †Illaenus consobrinus Billings, 1865 [species] †Illaenus crassicauda (Wahlenberg, 1826) [species] †Illaenus dalecarlicus Warburg, 1925 [species] †Illaenus fallax Holm, 1882 [species] †Illaenus fraternus Billings, 1865 [species] †Illaenus gelasinus Whittington, 1965 [species] †Illaenus gigas Holm, 1882 [species] †Illaenus kueichouensis (Lu, 1957) [species] †Illaenus lacertus Whittington, 1954 [species] †Illaenus marginalis Raymond, 1925 [species] †Illaenus oscitatus Fortey, 1980 [species] †Illaenus oviformis Warburg, 1925 [species] †Illaenus parvulus Holm, 1882 [species] †Illaenus renhuaniensis Yin in Yin & Lee, 1978 [species] †Illaenus sinensis Yabe, 1920 [species] †Illaenus spiculatus Whittington, 1963 [species] †Illaenus tianrongi Zhou et al., 2014 [species] †Illaenus tingi Sun, 1931 [species] †Illaenus tumidifrons Billings, 1865 [species] †Illaenus usitatus Zhou et al., 2014 [species] †Illaenus utahensis Hintze, 1952 [species] †Illaenus wimani Warburg, 1925 [species] †Illaenus (Parillaenus) dalecarlicus Warburg, 1925 [species] †Illaenus (Parillaenus) davisi (Salter, 1849) [species] †Illaenus (Parillaenus) fallax Holm, 1882 [species] †Illaenus (Parillaenus) primoticus Fortey & Bruton, 2013 [species] †Illaenus (Parillaenus) roemeri (Volborth, 1864) [species] †Illaenus (Parillaenus) yohi Zhou et al., 1984 [species] †Nanillaenus aduncus Chatterton & Ludvigsen, 1976 [species] †Nanillaenus crassus Zhou et al., 2014 [species] †Nanillaenus gualcamayensis Harrington & Leanza, 1957 [species] †Nanillaenus mackenziensis Chatterton & Ludvigsen, 1976 [species] †Octillaenus hisingeri (Barrande, 1867) [species] †Parillaenus exiguus Zhou et al., 2014 [species] †Parillaenus orbiconvexus (Ji, 1986) [species] †Parillaenus vetus Zhou et al., 2014 [species] †Platillaenus erastusi (Raymond, 1905) [species] †Stenopareia acymata Howells, 1982 [species] †Stenopareia catathema Howells, 1982 [species] †Stenopareia duffyae Chatterton & Ludvigsen, 2004 [species] †Stenopareia glaber (Kjerulf, 1865) [species] †Stenopareia globosus (Billings, 1859) [species] †Stenopareia glochin Howells, 1982 [species] †Stenopareia grandis (Billings, 1859) [species] †Stenopareia linnarssonii (Holm, 1882) [species] †Stenopareia linnarssoni (Holm, 1882) [species] †Thaleops arctura (Hall, 1847) [species] †Thaleops conifrons (Billings, 1859) [species] †Thaleops conradi (Billings, 1859) [species] †Thaleops depressicapitata (Bradley, 1930) [species] †Thaleops jaanussoni Amati & Westrop, 2004 [species] †Thaleops longispina Shaw, 1968 [species] †Thaleops nunavutica Amati & Westrop, 2004 [species] †Thaleops ovata Conrad, 1843 [species] †Thaleops punctata (Raymond, 1905) [species] †Thaleops raymondi (Shaw, 1968) [species] †Thaleops vindex (Billings, 1865) [species] †Illaenoidea [superfamily] †Caudillaenus nicolasi Rabano, 2014 [species] †Illaenuridae [family] †Illaenurus quadratus Hall, 1863 [species] †Polyariella pallida Rozova, 1963 [species] †Yurakia yurakiensis Rozova, 1963 [species] †Jakutidae [family] †Bathyuriscellus australis Palmer & Gatehouse, 1972 [species] †Bathyuriscellus modestus Palmer & Gatehouse, 1972 [species] †Kaolishaniidae [family] †Eokaolishania angustilimbata Zhu & Wittke, 1989 [species] †Kaolishania pustulosa Sun, 1924 [species] †Liaotropis tropis Schrank, 1975 [species] †Palemansuyia prima Yuan & Yin, 1998 [species] †Peichiashania hunanensis Peng, 1992 [species] †Peichiashania rectangularis (Endo, 1937) [species] †Tangjiaella bilira Qiu, 1984 [species] †Leiostegiidae [family] †Agerina acutilimbata Ghobadi Pour et al., 2011 [species] †Annamitella brachyops Fortey & Shergold, 1984 [species] †Annamitella strigifrons Fortey & Shergold, 1984 [species] †Bodenbenderia longifrons Harrington & Leanza, 1957 [species] †Brackebuschia acheila Harrington & Leanza, 1957 [species] †Chiawangella hunanensis Peng et al., 2004 [species] †Chiawangella pacifica (Walcott, 1911) [species] †Chiawangella pustulosa Chu, 1959 [species] †Chuangia austriaca Yang, 1977 [species] †Chuangia batia (Walcott, 1905) [species] †Chuangia puteata Endo & Resser, 1937 [species] †Chuangia subquadrangulata Sun, 1935 [species] †Chuangia wulingensis Yang, 1977 [species] †Chuangiella elongata Kobayashi, 1935 [species] †Chuangiella shengwanensis Yang et al., 1993 [species] †Chuangiella sichuanica Kuo, 1965 [species] †Chuangioides punctatus Chu, 1959 [species] †Chuangioides subaiyingouensis Zhang, 1985 [species] †Eochuangia hana Kobayashi, 1935 [species] †Geminiclavula wangcunica Peng et al., 2004 [species] †Leiostegium formosa Hintze, 1952 [species] †Leiostegium goodwinensis Ross, 1970 [species] †Leiostegium proprium Boyce, 1989 [species] †Leiostegium quadratus (Billings, 1860) [species] †Leiostegium spongiosum Fortey & Bruton, 2013 [species] †Leiostegium tyboensis Ross, 1970 [species] †Lloydia (Leiostegium) douglasi Harrington, 1937 [species] †Lloydia obsoletus Phleger, 1933 [species] †Meropalla bella Yuan & Yin, 1998 [species] †Meropalla gibbera Peng et al., 2004 [species] †Prochuangia granulosa Lu, 1956 [species] †Prochuangia leiocephala Peng et al., 1999 [species] †Prochuangia licinispinata Peng, 1992 [species] †Prochuangia longispina Lu & Zhu, 1980 [species] †Prochuangia turcica Dean, 2006 [species] †Pseudocalymene quadrata (Lu, 1975) [species] †Reubenella rex Lochman, 1966 [species] †Tinaspis totoyaca Robison & Pantoja-Alor, 1968 [species] †Wanshania stenos Yang et al., 1993 [species] †Wanshania wanshanensis Rong & Yang, 1977 [species] †Oryctocephalidae [family] †Arthricocephalus (Arthricocephalites) granulus (Chien & Lin, 1977) [species] †Arthricocephalus chauveaui Bergeron, 1899 [species] †Arthricocephalus duyunensis Chien, 1961 [species] †Arthricocephalus fuyangensis Ju, 1983 [species] †Arthricocephalus tenuis Zhang & Zhou, 1985 [species] †Arthricocephalus (Euarthricocephalus) taijiangensis Zhou & Yuan, 2002 [species] †Changaspis elongata Lee, 1961 [species] †Changaspis placenta Zhang et al., 1980 [species] †Changaspis taihuensis Zhang & Zhou, 1985 [species] †Changaspis transversus Yang et al., 1993 [species] †Cheiruroides arcticus Chernysheva, 1962 [species] †Curvoryctocephalus taijiangensis Zhao & Yuan, 2002 [species] †Duyunaspis duyunensis Zhang & Qian, 1977 [species] †Duyunaspis laevigatus Zhang et al., 1980 [species] †Duyunaspis obesis Zhang et al., 1980 [species] †Duyunaspis songtaoensis Qian & Lin, 1977 [species] †Feilongshania brevica Zhang et al., 1980 [species] †Feilongshania shichangensis Zhang et al., 1980 [species] †Goldfieldia kunshanensis Zhang & Zhou, 1985 [species] †Goldfieldia ninguis Palmer & Gatehouse, 1972 [species] †Goldfieldia pacifica Palmer, 1964 [species] †Hunanocephalus (Duotingia) taihuensis Zhang & Zhou, 1985 [species] †Hunanocephalus ovalis Lee, 1963 [species] †Kunshanaspis suzhouensis Zhang & Zhou, 1985 [species] †Metabalangia yupingensis Zhang et al., 1980 [species] †Metarthricocephalus spinosus Zhao & Yuan, 2002 [species] †Microryctocara nevadensis Sundberg & McCollum, 1997 [species] †Oryctocara geikiei Walcott, 1908 [species] †Oryctocephaloides convexus Zhang et al., 1980 [species] †Oryctocephalops guizhouensis Zhao & Yuan, 2002 [species] †Oryctocephalus elongatus (Zhao et al., 1997) [species] †Oryctocephalus incurvus Lu & Chien, 1974 [species] †Oryctocephalus indicus (Reed, 1910) [species] †Oryctocephalus salteri Reed, 1910 [species] †Oryctocephalus walcotti Resser, 1938 [species] †Ovatoryctocara granulata Chernysheva, 1960 [species] †Parachangaspis haopingensis Yang et al., 1993 [species] †Protoryctocephalus balangensis Zhao & Yuan, 2002 [species] †Protoryctocephalus wuxunensis Zhou, 1974 [species] †Shabaella convexa Ju, 1983 [species] †Shabaella fengzuensis Lu & Lin, 1983 [species] †Shabaella jiangshanensis Ju, 1983 [species] †Shergoldiella vincenti Geyer, 2006 [species] †Tonkinella flabelliformis Mansuy, 1916 [species] †Pagodiidae [family] †Idamea baccata Opik, 1967 [species] †Pagodia duliujiangensis Chien, 1961 [species] †Pagodia major Lu & Zhu, 1980 [species] †Pagodia seelyi Walcott, 1912 [species] †Panderia dayongensis (Ji, 1987) [species] †Panderia megalophthalma Linnarsson, 1869 [species] †Panderia orbiculata Ji, 1986 [species] †Panderia triquetra Volborth, 1863 [species] †Shirakiellidae [family] †Shirakiella elongata Kobayashi, 1935 [species] †Styginidae [family] †Actinolobus americanus Raymond, 1916 [species] †Actinolobus atavus (Eichwald, 1857) [species] †Alceste latissima Hawle & Corda, 1847 [species] †Bronteopsis brumleyi Cooper, 1953 [species] †Bronteopsis concentrica Nicholson & Etheridge, 1879 [species] †Bronteopsis hotledahli Skjeseth, 1955 [species] †Bronteopsis panderi (Schmidt, 1904) [species] †Bronteopsis tennesseensis Cooper, 1953 [species] †Bronteopsis toernquisti (Moberg & Segerberg, 1906) [species] †Cekovia striata Ji, 1986 [species] †Dentaloscutellum hudsoni Chatterton, 1971 [species] †Dulanaspis asper Zhou et al., 2014 [species] †Dulanaspis karagachensis Ghobadi Pour et al., 2011 [species] †Ekwanoscutellum ekwanaspis (Whiteaves, 1906) [species] †Eobronteus laticauda (Wahlenberg, 1818) [species] †Eobronteus slocomi (Bradley, 1930) [species] †Eokosovopeltis currajongensis Edgecombe & Webby, 2007 [species] †Eokosovopeltis expansus Zhou et al., 2014 [species] †Eokosovopeltis grandicurvatus Edgecombe et al., 2007 [species] †Eokosovopeltis romanovskii (Weber, 1948) [species] †Failleana calva Chatterton & Ludvigsen, 1976 [species] †Failleana limbata (Raymond, 1910) [species] †Failleana magnifica Chatterton & Ludvigsen, 2004 [species] †Failleana wangi Chatterton & Ludvigsen, 2004 [species] †Goldillaenus shinoharai Kobayashi & Hamada, 1974 [species] †Illaenoides abnormis Kobayashi & Hamada, 1986 [species] †Illaenoides magnisulcatus Kobayashi & Hamada, 1986 [species] †Illaenoides trilobus Weller, 1907 [species] †Kosovopeltis allaarti Lane, 1984 [species] †Kosovopeltis andersoni (Etheridge & Nicholson, 1879) [species] †Kosovopeltis angusticostata Kobayashi & Hamada, 1974 [species] †Kosovopeltis cunctata (Reed, 1931) [species] †Kosovopeltis insularis (Billings, 1866) [species] †Ligiscus smithi Adrain et al., 1995 [species] †Liolalax bouchardi (Barrande, 1846) [species] †Microscutellum primigenium Kobayashi & Hamada, 1974 [species] †Paracybantyx occidentalis Adrain et al., 1995 [species] †Perischoclonus capitalis Raymond, 1925 [species] †Protostygina bohemicus (Barrande, 1872) [species] †Raymondaspis angelini Billings, 1856 [species] †Raymondaspis ardmillanensis Reed, 1904 [species] †Raymondaspis gregarius (Raymond, 1920) [species] †Raymondaspis limbatus (Angelin, 1854) [species] †Raymondaspis nitens (Wiman, 1906) [species] †Raymondaspis pingpong Fortey & Bruton, 2013 [species] †Raymondaspis planus Raymond, 1937 [species] †Raymondaspis reticulatus Whittington, 1965 [species] †Raymondaspis turgidus Whittington, 1965 [species] †Raymondaspis vespertina Ross & Barnes, 1967 [species] †Scabriscutellum hammadi Chatterton et al., 2006 [species] †Scabriscutellum lahceni Chatterton et al., 2006 [species] †Scutellum calvum Chatterton, 1971 [species] †Scutellum decipulum Van Viersen & Prescher, 2011 [species] †Scutellum droseron Holloway & Neil, 1982 [species] †Scutellum protrusifrons Van Viersen & Prescher, 2011 [species] †Stygina (Protostygina) bohemica Barrande, 1872 [species] †Stygina angustifrons Warburg, 1925 [species] †Stygina latifrons (Portlock, 1843) [species] †Stygina minor Skjeseth, 1955 [species] †Stygina murchisoni Reed, 1914 [species] †Stygina plautoni Schmidt, 1904 [species] †Theamataspis tuber Fortey, 1980 [species] †Thysanopeltella (Septimopeltis) magnispina (Maillieux, 1938) [species] †Turgicephalus falcatus Fortey, 1980 [species] †Turgicephalus hinlopensis Fortey, 1980 [species] †Turgicephalus neglecta Nielsen, 1995 [species] †Turgicephalus whittingtoni Nielsen, 1995 [species] †Tsinaniidae [family] †Leiaspis concavolimbata Zhang et al., 1980 [species] †Leiaspis shuiyuensis Zhang et al., 1980 [species] †Shergoldia australis Peng, 1992 [species] †Shergoldia laevigata Zhu et al., 2007 [species] †Taipaikia glabra (Endo & Resser, 1937) [species] †Tsinania canens (Walcott, 1905) [species] †Zhujia hunanensis Peng et al., 1995 [species] †Zacanthoididae [family] †Albertella bosworthi Walcott, 1908 [species] †Albertella eiloitys Fritz, 1968 [species] †Albertella judithi Fritz, 1968 [species] †Albertella lata Fritz, 1968 [species] †Albertella sampsoni Resser, 1938 [species] †Albertelloides mischi Fritz, 1968 [species] †Albertelloides pandspinata Fritz, 1968 [species] †Danjiangella tenuispinosa Yang et al., 1993 [species] †Prozacanthoides lahiri Peng et al., 2009 [species] †Pseudozacanthopsis yichunensis Duan & An, 2001 [species] †Ptarmiganoides araneicauda Fritz, 1968 [species] †Qingzhenaspis intermedia Zhao & Huang, 1981 [species] †Stephenaspis avitus Palmer, 1964 [species] †Vanuxemella idahoensis Resser, 1938 [species] †Vanuxemella minuta Resser, 1939 [species] †Zacanthoides abbreviatus Resser, 1939 [species] †Zacanthoides adjunctus Resser, 1939 [species] †Zacanthoides demissus Fritz, 1968 [species] †Zacanthoides gradatus Resser, 1939 [species] †Zacanthoides holopygous Resser, 1939 [species] †Zacanthoides holopygus Resser, 1939 [species] †Zacanthoides idahoensis Walcott, 1908 [species] †Zacanthoides kelsayae Shaw, 1957 [species] †Zacanthoides sampsoni Resser, 1938 [species] †Zacanthoides serratus Resser, 1939 [species] †Zacanthoides typicalis (Walcott, 1886) [species] †Zacanthopsina eperephes Palmer, 1964 [species] †Zacanthopsis contractus Palmer, 1964 [species] †Zacanthopsis expansa Fritz, 1991 [species] †Zacanthopsis stribuccus Fritz, 1972 [species] †Deltacare prosops Harrington & Leanza, 1957 [species] †Entomostracites laciniatus Wahlenberg, 1818 [species] †Entsyna entsynica Rozova, 1968 [species] †Fritzaspis generalis Hollingsworth, 2007 [species] †Fritzaspis ovalis Hollingsworth, 2007 [species] †Gogoella brevis Fortey & Shergold, 1984 [species] †Harpetida [order] †Entomaspididae [family] †Baikadamaspis proprius Ergaliev, 1980 [species] †Harpetidae [family] †Bohemoharpes bubovicensis Pribyl & Vanek, 1986 [species] †Bohemoharpes buphthalmus (Novak, 1890) [species] †Bohemoharpes hypsipyle Pribyl & Vanek, 1986 [species] †Bohemoharpes inflexa Doubrava, 1991 [species] †Bohemoharpes janae Doubrava, 1991 [species] †Bohemoharpes naumanni (Barrande, 1852) [species] †Bohemoharpes ovatus (Boucek, 1935) [species] †Bohemoharpes ungula (Sternberg, 1833) [species] †Bohemoharpes vittatus (Barrande, 1852) [species] †Bohemoharpes wilkensii (Münster, 1840) [species] †Brachyhipposiderus hunanensis (Peng, 1984) [species] †Brachyhipposiderus logimus Jell, 1985 [species] †Brachyhipposiderus secundus Peng, 1990 [species] †Dolichoharpes arctica Whittington, 1954 [species] †Dolichoharpes doranni Whittington, 1950 [species] †Dolichoharpes reticulata Whittington, 1949 [species] †Dolichoharpes uniseralis (Raymond, 1925) [species] †Dolichoharpes uniserialis (Raymond, 1925) [species] †Dolichoharpes villosus Koroleva, 1978 [species] †Dubhglasina depressus (Harrington & Leanza, 1957) [species] †Dubhglasina expansus (Jell, 1985) [species] †Dubhglasina parvula (McCoy, 1851) [species] †Dubhglasina pospelovi Petrunina, 1966 [species] †Dubhglasina precordilleranus Baldis & Gonzalez, 1986 [species] †Dubhglasina singletoni (Jell, 1985) [species] †Dubhglasina yunnanensis (Sheng, 1974) [species] †Entomaspis rawi Ross, 1951 [species] †Eoharpes antiquatus (Billings, 1859) [species] †Eoharpes benignensis (Barrande, 1872) [species] †Eoharpes cristatus Romano, 1975 [species] †Eoharpes guichenensis Henry & Phillipot, 1968 [species] †Eoharpes macaoensis Romano & Henry, 1982 [species] †Eoharpes primus (Barrande, 1872) [species] †Eoharpes yijianfangensis Zhou et al., 2014 [species] †Eskoharpes boltoni McNamara et al., 2009 [species] †Eskoharpes guthae McNamara et al., 2009 [species] †Eskoharpes palanasus McNamara et al., 2009 [species] †Eskoharpes wandjina McNamara et al., 2009 [species] †Harpes acuminatus Lindström, 1885 [species] †Harpes dvorcensis Prantl & Pribyl, 1954 [species] †Harpes escoti Bergeron, 1887 [species] †Harpes fornicatus Novak, 1890 [species] †Harpes forojuliensis Gortani, 1909 [species] †Harpes gracilis Münster, 1840 [species] †Harpes koeneni Wedekind, 1914 [species] †Harpes latilimbatus Krause, 1894 [species] †Harpes macrocephallus Goldfuss, 1839 [species] †Harpes macrocephalus Goldfuss, 1839 [species] †Harpes neogracilis Richter & Richter, 1924 [species] †Harpes nymageenensis Fletcher, 1975 [species] †Harpes nymageensis Fletcher, 1975 [species] †Harpes ormistoni Pribyl & Vanek, 1986 [species] †Harpes parvulus M'Coy, 1851 [species] †Harpes perradiatus (Richter & Richter, 1943) [species] †Harpes polaris Maksimova, 1977 [species] †Harpes pyrenaicus Barrios, 1886 [species] †Harpes radians (Richter, 1963) [species] †Harpes rouvillei Frech, 1887 [species] †Harpes socialis Holzapfel, 1895 [species] †Harpes transiens (Barrande, 1872) [species] †Harpes whidbournei Whittington, 1950 [species] †Hibbertia amibouei (Lamont, 1948) [species] †Hibbertia anticostiensis (Twenhofel, 1928) [species] †Hibbertia balclatchiensis Whittington, 1950 [species] †Hibbertia conistonensis Lesperance & Weissenberger, 1998 [species] †Hibbertia costata Angelin, 1854 [species] †Hibbertia costatus (Angelin, 1854) [species] †Hibbertia dalecarlicus (Thorslund, 1930) [species] †Hibbertia hornei (Reed, 1914) [species] †Hibbertia inghami (Owen, 1981) [species] †Hibbertia karamolensis Koroleva, 1978 [species] †Hibbertia perceensis (Kindle, 1945) [species] †Hibbertia ruddyi Whittington, 1950 [species] †Hibbertia similis (Nikolaisen, 1965) [species] †Hibbertia trippi (Whittington, 1950) [species] †Hibbertia valcourensis (Shaw, 1968) [species] †Hibbertia wegelini (Angelin, 1854) [species] †Hibbertia whittingtoni Tripp, 1965 [species] †Kielania waageni (Prantl & Pribyl, 1954) [species] †Lioharpes altaicus (Weber, 1932) [species] †Lioharpes bischofi (Roemer, 1852) [species] †Lioharpes crassimargo (Novak, 1890) [species] †Lioharpes hastatus (Lütke, 1965) [species] †Lioharpes montagnei (Hawle & Corda, 1847) [species] †Lioharpes sculptus (Hawle & Corda, 1847) [species] †Lioharpes vektori Doubrava, 1991 [species] †Lioharpes venetus (Gortani, 1915) [species] †Lioharpes venulosus (Whittington, 1950) [species] †Palaeoharpes primigenius Lu & Qian, 1974 [species] †Scotoharpes aduncus Fortey, 1980 [species] †Scotoharpes cassinensis (Whitfield, 1897) [species] †Scotoharpes consuetus (Billings, 1863) [species] †Scotoharpes domina Lamont, 1948 [species] †Scotoharpes excavatus (Linnarsson, 1875) [species] †Scotoharpes filiarum Dean, 1979 [species] †Scotoharpes fragilis (Raymond, 1925) [species] †Scotoharpes granti (Billings, 1865) [species] †Scotoharpes judex (Marr & Nicholson, 1888) [species] †Scotoharpes latior (Poulsen, 1934) [species] †Scotoharpes laurei Jell & Stait, 1985 [species] †Scotoharpes lauriei Jell & Stait, 1985 [species] †Scotoharpes loma (Lane, 1972) [species] †Scotoharpes molongloensis Chatterton & Campbell, 1980 [species] †Scotoharpes pansa (Maksimova, 1960) [species] †Scotoharpes planilimbatus Lu, 1975 [species] †Scotoharpes raaschi Norford, 1973 [species] †Scotoharpes rotundus (Bohlin, 1955) [species] †Scotoharpes sanctacrucensis (Kielan, 1960) [species] †Scotoharpes sinensis (Grabau, 1925) [species] †Scotoharpes singularis (Whittington, 1965) [species] †Scotoharpes sombrero Owen, 1981 [species] †Scotoharpes spasskii (Eichwald, 1840) [species] †Scotoharpes taimyricus (Balaschova, 1959) [species] †Scotoharpes tatouyangensis (Chan & Fang, 1960) [species] †Scotoharpes telleri (Weller, 1907) [species] †Scotoharpes tobulatus (Chugaeva, 1975) [species] †Scotoharpes trinucleoides (Etheridge & Mitchell, 1917) [species] †Scotoharpes vetustus Zhou & Zhang, 1978 [species] †Scotoharpes vitilis (Whittington, 1963) [species] †Scotoharpes volsellatus Howells, 1982 [species] †Scotoharpes willsi (Whittington, 1950) [species] †Scotoharpes youngi (Reed, 1914) [species] †Harpididae [family] †Chencunia tripleura Qiu, 1984 [species] †Harpides atlanticus Billings, 1865 [species] †Harpides neogaeus Harrington & Leanza, 1957 [species] †Loganopeltoides proprius Ergaliev, 1980 [species] †Indigestus hauchecornei (Remele, 1885) [species] †Indiligens carinatus Qian, 1985 [species] †Indiligens clonograpti (Stubblefield & Bulman, 1927) [species] †Indiligens limbus Ergaliev, 1980 [species] †Indiligens spinosus Ergaliev, 1980 [species] †Indiligens transversus Qian, 1985 [species] †Jiulongshania regularis (Walcott, 1906) [species] †Kanfuqingia malongensis Luo et al., 2008 [species] †Keeleaspis pustula Fritz, 1972 [species] †Keeleaspis stupenda Fritz, 1972 [species] †Kinsabia variegata Lochman, 1940 [species] †Lichida [order] †Damesellidae [family] †Bergeronites jiangsuensis Lin et al., 1983 [species] †Bergeronites kunshanensis Lin et al., 1983 [species] †Bergeronites langyashanensis Lu & Zhu, 1980 [species] †Bergeronites neimonggolensis Zhang & Zhou, 1993 [species] †Bergeronites yushanensis Lin et al., 1983 [species] †Blackwelderia chiawangensis Chu, 1959 [species] †Blackwelderia fortis Zhou, 1980 [species] †Blackwelderia liaoningensis Chu, 1959 [species] †Blackwelderia mui Chu, 1959 [species] †Blackwelderia nodosaria Zhu, 1987 [species] †Blackwelderia octaspina (Kobayashi, 1935) [species] †Blackwelderia paronai (Airaghi, 1902) [species] †Blackwelderia pingluensis Zhang & Wang, 1986 [species] †Blackwelderia shengi Chu, 1959 [species] †Blackwelderia sinensis (Bergeron, 1899) [species] †Blackwelderia triangularis Chu, 1959 [species] †Blackwelderia youshuica Peng et al., 2004 [species] †Blackwelderioides monkei (Walcott, 1911) [species] †Damesella blackwelderi Walcott, 1905 [species] †Damesella hunanensis Peng et al., 2004 [species] †Damesops convexus Chu, 1959 [species] †Guancenshania lilia Zhang & Wang, 1986 [species] †Haibowania zhuozishanensis Zhang, 1985 [species] †Karslanus parteaculeatus (Wolfart, 1974) [species] †Kiyakius ichthyura (Zhang, 1983) [species] †Meringaspis damaensis Duan, 2004 [species] †Meringaspis karatauensis Ergaliev, 1980 [species] †Metashantungia brevica Chang, 1957 [species] †Neodrepanura crassispina Peng et al., 2004 [species] †Neodrepanura ketteleri Woodward, 1905 [species] †Neodrepanura premesnili (Bergeron, 1899) [species] †Neodrepanura transversa Chu, 1959 [species] †Palaeadotes acutisulcatus Ergaliev, 1980 [species] †Palaeadotes angustus Ergaliev, 1980 [species] †Palaeadotes bella (Qiu, 1983) [species] †Palaeadotes hunanensis (Yang, 1977) [species] †Palaeadotes obtusa Qian & Zhou, 1984 [species] †Parablackwelderia huabeiensis (Zhang, 1983) [species] †Parablackwelderia jimaensis (Yang, 1974) [species] †Parablackwelderia laterilobata (Yang, 1977) [species] †Parablackwelderia luensis Peng et al., 2008 [species] †Parablackwelderia sheridanorum (Jell & Hughes, 1997) [species] †Parablackwelderia yangi Peng et al., 2004 [species] †Paradamesella nobilis Lu & Lin, 1989 [species] †Paradamesella paratypica Yang, 1978 [species] †Paradamesella peculiaris Zhou, 1977 [species] †Paradamesella typica Yang, 1977 [species] †Protaitzehoia granifera Yang, 1978 [species] †Protaitzehoia latelimbata Yuan & Yin, 2001 [species] †Protaitzehoia nitida Yuan & Yin, 2001 [species] †Protaitzehoia quadrata (Resser & Endo, 1937) [species] †Protaitzehoia spinifera Peng et al., 2004 [species] †Protaitzehoia subquadrata Peng, 1987 [species] †Protaitzehoia yuepingensis Yang, 1978 [species] †Shantungia spinifera Walcott, 1905 [species] †Stephanocare ordosensis Chu, 1959 [species] †Stephanocare richthofeni Monke, 1903 [species] †Taihangshaniashania wangcunensis (Peng et al., 2004) [species] †Taitzehoia erhtaokouensis Chu, 1959 [species] †Taitzehoia wangi Chu, 1959 [species] †Teinistion hsihsienensis Chu, 1959 [species] †Teinistion jiangsuensis Qian & Zhou, 1984 [species] †Teinistion lansi Monke, 1905 [species] †Teinistion liaoningensis Chu, 1959 [species] †Teinistion posterocostum (Yang, 1977) [species] †Teinistion tangshihlingensis Chu, 1959 [species] †Teinistion typicalis (Walcott, 1905) [species] †Teinistion yangi Chu, 1959 [species] †Lichakephalidae [family] †Acidaspidella limata Rozova, 1963 [species] †Acidaspides lermontovae Tchernysheva, 1953 [species] †Acidaspides precurrens Lermontova, 1951 [species] †Acidaspidina plana Lazarenko, 1960 [species] †Belovia aliquantula Rozova, 1964 [species] †Belovia calva Tchernysheva In Poletaeva, 1956 [species] †Belovia cyclica Rozova, 1964 [species] †Belovia laeta Rozova, 1964 [species] †Belovia media Poletaeva, 1977 [species] †Belovia radugini Poletaeva, 1977 [species] †Belovia salairica Poletaeva, 1960 [species] †Brutonia borealis (Tchernysheva, 1960) [species] †Eoacidaspis amplicauda Lazarenko, 1968 [species] †Eoacidaspis salairica Poletaeva, 1956 [species] †Lichakephalus stubbsi Fortey, 2011 [species] †Metaacidaspis beigongensis Qiu, 1984 [species] †Paraacidaspis hunanica Egorova, 1960 [species] †Lichidae [family] †Acanthopyge contusus (Hall & Clarke, 1888) [species] †Acanthopyge granulosa (Roemer, 1852) [species] †Acanthopyge (Acanthopyge) haueri (Barrande, 1846) [species] †Acanthopyge (Jasperia) bifida (Edgell, 1955) [species] †Akantharges gourdoni (Barrois, 1886) [species] †Allolichas glenos (Whittington, 1962) [species] †Allolichas laxatus (McCoy, 1846) [species] †Allolichas nodulosus (McCoy, 1851) [species] †Amphilichas antiquarius (Bradley, 1930) [species] †Amphilichas aspratilis (Bradley, 1930) [species] †Amphilichas atavus Warburg, 1925 [species] †Amphilichas conradi Chatterton & Ludvigsen, 1976 [species] †Amphilichas cucullus (Meek & Worthen, 1865) [species] †Amphilichas dalecarlicus (Angelin, 1854) [species] †Amphilichas declivis Tripp, 1954 [species] †Amphilichas effnensis Carlucci et al., 2010 [species] †Amphilichas holmi (Schmidt, 1885) [species] †Amphilichas laevis (Eichwald, 1857) [species] †Amphilichas latifrons Warburg, 1925 [species] †Amphilichas lineatus (Angelin, 1854) [species] †Amphilichas minganensis (Billings, 1865) [species] †Amphilichas parvulus Warburg, 1925 [species] †Amphilichas periformis Warburg, 1925 [species] †Amphilichas planus Tripp, 1954 [species] †Amphilichas rhinoceros (Slocom, 1913) [species] †Amphilichas shergoldi Edgecombe & Webby, 2007 [species] †Amphilichas subdisjunctus (Bradley, 1930) [species] †Amphilichas subpunctatus Esker, 1964 [species] †Amphilichas wahlenbergi Warburg, 1925 [species] †Apatolichas jukesi (Billings, 1865) [species] †Apolichas perconvexus Kobayashi & Hamada, 1985 [species] †Apolichas truncatus Kobayashi & Hamada, 1974 [species] †Arctinurus anticostiensis (Northrup, 1939) [species] †Arctinurus aranaceus (Twenhofel, 1928) [species] †Arctinurus boltoni (Bigsby, 1825) [species] †Arctinurus shallopensis (Twenhofel, 1928) [species] †Asawikwanabe pauli Basse & Müller, 2004 [species] †Autoloxolichas sanctamathiae (Schmidt, 1885) [species] †Basseiarges mellishae Corbacho & López-Soriano, 2013 [species] †Belenopyge australiformis Chatterton et al., 1979 [species] †Belenopyge australis (McCoy, 1876) [species] †Belenopyge balliviani (Kozlowski, 1923) [species] †Belenopyge bassei Chatterton & Gibb, 2010 [species] †Belenopyge branikensis (Barrande, 1872) [species] †Belenopyge brankiensis (Barrande, 1872) [species] †Belenopyge brevis (Maksimova, 1968) [species] †Belenopyge campbelli Chatterton & Wright, 1986 [species] †Belenopyge consanguinea (Clarke, 1894) [species] †Belenopyge decheni (Holzapfel, 1895) [species] †Belenopyge docekali (Vanek, 1959) [species] †Belenopyge edgecombei Ebach, 2001 [species] †Belenopyge hirsuta (Fletcher, 1850) [species] †Belenopyge niobe Basse, 1998 [species] †Belenopyge parapleura Curtis & Lane, 1998 [species] †Belenopyge parvulus (Novák, 1890) [species] †Belenopyge permaginata Přibyl & Erben, 1952 [species] †Belenopyge pragensis (Bouček, 1933) [species] †Belenopyge pristina Campbell & Chatterton, 2006 [species] †Belenopyge sinuata (Ratte, 1886) [species] †Belenopyge uralensis (Maksimova, 1979) [species] †Borealarges bucklandii (Milne Edwards, 1840) [species] †Borealarges calei Adrain, 1994 [species] †Borealarges convexus (Tomczykowa, 1991) [species] †Borealarges fritillus Campbell & Chatterton, 2007 [species] †Borealarges kielcensis (Tomczykowa, 1993) [species] †Borealarges mikulicorum (Perry & Chatterton, 1977) [species] †Borealarges morrisoni Adrain, 1994 [species] †Borealarges nicoae Adrain, 2003 [species] †Borealarges patulus Campbell & Chatterton, 2007 [species] †Borealarges reedi Adrain, 1994 [species] †Borealarges renodis Campbell & Chatterton, 2007 [species] †Borealarges simplex (Barrande, 1846) [species] †Borealarges tuckerae Adrain, 1994 [species] †Borealarges variabilis Campbell & Chatterton, 2007 [species] †Borealarges warholi Adrain, 2003 [species] †Borealarges yulei Adrain, 2003 [species] †Ceratarges aries Van Viersen & Presher, 2011 [species] †Ceratarges armatus (Goldfuss, 1839) [species] †Ceratarges bergicus Basse & Müller, 2004 [species] †Ceratarges cognatus Van Viersen, 2006 [species] †Ceratarges koumalii Van Viersen & Presher, 2011 [species] †Ceratarges ziregensis Van Viersen & Presher, 2011 [species] †Ceratolichas dracon (Hall & Clarke, 1888) [species] †Ceratolichas gryps (Hall & Clarke, 1888) [species] †Conolichas aequiloba (Steinhardt, 1874) [species] †Conolichas deflexus (Schmidt, 1854) [species] †Conolichas eichwaldi (Niezskowski, 1857) [species] †Conolichas sjoegreni Warburg, 1939 [species] †Conolichas triconicus (Dames, 1877) [species] †Craspedarges wilcanniae (Gürich, 1901) [species] †Dicranogmus aequalis Törnquist, 1884 [species] †Dicranogmus gregalis Chugaeva, 1983 [species] †Dicranogmus guizhouensis Wu, 1977 [species] †Dicranogmus lepidus Campbell & Chatterton, 2006 [species] †Dicranogmus pustulatus Hawle & Corda, 1847 [species] †Dicranogmus scabrosus Zhou & Zhou, 1982 [species] †Dicranogmus skinneri Perry & Chatterton, 1977 [species] †Dicranogmus wilsoni Campbell & Chatterton, 2006 [species] †Dicranogmus wynni Adrain, 2003 [species] †Dicranopeltis eopolytoma Kolobova, 1978 [species] †Dicranopeltis imperfecta Snajdr, 1975 [species] †Dicranopeltis polytoma Angelin, 1854 [species] †Dicranopeltis polytomus (Angelin, 1854) [species] †Dicranopeltis scabra (Beyrich, 1845) [species] †Dicranopeltis tricornis Kobayashi & Hamada, 1986 [species] †Echinolichas bellamicus (Clarke, 1907) [species] †Echinolichas eriopis (Hall, 1863) [species] †Echinolichas hispidus (Hall & Clarke, 1888) [species] †Echinolichas lucasensis Stumm, 1967 [species] †Echinolichas parallelobatus Fagerstrom, 1961 [species] †Eifliarges caudimirus (Richter & Richter, 1917) [species] †Eifliarges hylas Basse, 1998 [species] †Gaspelichas forillonia (Clarke, 1907) [species] †Hemiarges angustifrons Tripp, 1954 [species] †Hemiarges antelucanus Tripp, 1954 [species] †Hemiarges avalanchensis Campbell & Chatterton, 2007 [species] †Hemiarges balanus Rudkin et al., 1994 [species] †Hemiarges diadayma Rudkin et al., 1994 [species] †Hemiarges extremus Owen, 1986 [species] †Hemiarges inghami Tripp, 1979 [species] †Hemiarges insolitus Tripp, 1967 [species] †Hemiarges leviculus Bradley, 1930 [species] †Hemiarges maccullochi (Reed, 1914) [species] †Hemiarges memorans Öpik, 1937 [species] †Hemiarges paulianus (Clarke, 1894) [species] †Hemiarges rohri Perry & Chatterton, 1977 [species] †Hemiarges troedssoni Rudkin et al., 1994 [species] †Hemiarges turneri Chatterton & Ludvigsen, 1976 [species] †Hemiarges warburgae Troedsson, 1929 [species] †Hemiarges wesenbergensis (Schmidt, 1885) [species] †Hemiarges zhaobishanensis Zhou et al., 1982 [species] †Hoplolichas dissidens (Beyrich, 1845) [species] †Hoplolichas longispinus (Schmidt, 1885) [species] †Hoplolichas medius (Pompecki, 1890) [species] †Hoplolichas proboscideus Dames, 1877 [species] †Hoplolichas schmidtii (Dames, 1877) [species] †Hoplolichas tricuspidata (Beyrich, 1846) [species] †Hoplolichoides conicotuberculatus (Nieszkowskia, 1859) [species] †Hoplolichoides curvifrons (Warburg, 1939) [species] †Hoplolichoides furcifer (Schmidt, 1885) [species] †Huginarges beryllifer (Richter, 1909) [species] †Huginarges frankei Basse & Müller, 2004 [species] †Huginarges mathesiorum Basse & Müller, 2004 [species] †Leiolichas gageli (Pompecki, 1890) [species] †Leiolichas illaenoides (Nieszkowski, 1857) [species] †Lichas (Homolichas) depressus (Angelin, 1854) [species] †Lichas (Homolichas) oelandicus (Angelin, 1854) [species] †Lichas (Hoplolichas) hylaeus (Hall & Clarke, 1888) [species] †Lichas (Hoplolichas) plautini (Schmidt, 1885) [species] †Lichas affinis Angelin, 1854 [species] †Lichas curvifrons Warburg, 1939 [species] †Lichas ferrisi (Weller, 1907) [species] †Lichas laciniatus (Lovén, 1845) [species] †Lichas laticeps Angelin, 1854 [species] †Lichas menieri Chatterton & Ludvigsen, 2004 [species] †Lichas palifer Lindström, 1885 [species] †Lichas platyrhinus Schmidt, 1907 [species] †Lichas rotundifrons Angelin, 1854 [species] †Lichas (Oncholichas) gotlandica (Angelin, 1854) [species] †Lichas (Platylichas) bottniensis (Wiman, 1907) [species] †Lichas (Platylichas) cicatricosus (Lovén, 1845) [species] †Lichas (Platylichas) docens (Schmidt, 1885) [species] †Lichas (Platylichas) fossulatus Öpik, 1937 [species] †Lichas (Platylichas) hamatus (Schmidt, 1885) [species] †Lichas (Platylichas) infimus Campbell & Chatterton, 2006 [species] †Lichas (Platylichas) latus (Tornquist, 1884) [species] †Lichas (Platylichas) laxatus (McCoy, 1846) [species] †Lichas (Platylichas) lingua Warburg, 1939 [species] †Lichas (Platylichas) margaritifer (Nieszkowski, 1857) [species] †Lichas (Platylichas) nasutus Wigand, 1888 [species] †Lichas (Platylichas) planifrons Angelin, 1854 [species] †Lichas (Platylichas) robustus Warburg, 1925 [species] †Lichas (Platylichas) validus (Linnarsson, 1869) [species] †Lichas (Platylichas) warburgae Thorslund, 1930 [species] †Lichas (Platylichas) wegelini Holm, 1882 [species] †Lyralichas qiaoi Zhou et al., 2014 [species] †Mephiarges mephisto (Richter & Richter, 1918) [species] †Metaleiolichas tuberculatus Kobayashi & Hamada, 1987 [species] †Metopolichas anderkensis Weber, 1948 [species] †Metopolichas celorrhin (Angelin, 1854) [species] †Metopolichas contractus MacGregor, 1963 [species] †Metopolichas erici (Warburg, 1939) [species] †Metopolichas kuckersianus (Schmidt, 1885) [species] †Metopolichas longerostratus (Schmidt, 1885) [species] †Metopolichas pachyrhinus (Dalman, 1828) [species] †Metopolichas verrucosus (Eichwald, 1842) [species] †Metopolichas yuanbaensis Zhou, 1975 [species] †Neolichas constrictus (Whittard, 1938) [species] †Neolichas norvegicus (Angelin, 1854) [species] †Neolichas obvius (Hall, 1870) [species] †Neolichas silvestris (Reed, 1925) [species] †Nonix sauroter Lane, 1984 [species] †Ohleum eurydice Basse, 1998 [species] †Ohleum magreani Taghon et al., 2012 [species] †Oinochoe bigsbyi (Hall, 1861) [species] †Oinochoe coccymelum (Campbell, 1977) [species] †Oinochoe pustulosa (Hall, 1859) [species] †Otarozoum melmerbiensis (Reed, 1907) [species] †Otarozoum pahleni (Schmidt, 1885) [species] †Otarozoum peri (Warburg, 1939) [species] †Paraleiolichas globulus Kobayashi & Hamada, 1987 [species] †Perunaspis helga Přibyl et al., 1986 [species] †Perunaspis longispinus (Přibyl, 1949) [species] †Perunaspis minuta (Barrande, 1846) [species] †Perunaspis sexlobata (Roemer, 1855) [species] †Platylichas (Rontrippia) angulatus (Warburg, 1925) [species] †Platylichas (Rontrippia) cicatricosus (Lovén, 1845) [species] †Platylichas (Rontrippia) dalmani (Warburg, 1939) [species] †Platylichas (Rontrippia) grayii (Fletcher, 1850) [species] †Platylichas (Rontrippia) parvulus (Cooper & Kindle, 1936) [species] †Platylichas (Rontrippia) telleri (Weller, 1907) [species] †Platylichas (Rontrippia) vultuosus (Öpik, 1937) [species] †Probolichas kristiae Carlucci et al., 2010 [species] †Probolichas pandus (Evitt, 1951) [species] †Probolichas robbinsi (Ulrich, 1892) [species] †Pseudotupolichas anamosa (Walter, 1925) [species] †Pseudotupolichas araneus (Lindström, 1885) [species] †Pseudotupolichas chicagoensis (Weller, 1907) [species] †Pseudotupolichas concinnus (Angelin, 1854) [species] †Pseudotupolichas ornatus (Angelin, 1854) [species] †Pseudotupolichas plicatus (Lindström, 1885) [species] †Pseudotupolichas visbyensis (Lindström, 1885) [species] †Radiolichas aranea (Holzapfel, 1895) [species] †Radiolichas davedaviesi Adrain & Ramskold, 1996 [species] †Radiolichas guttatus Campbell & Chatterton, 2006 [species] †Radiolichas raydaviesi Adrain & Ramskold, 1996 [species] †Rhenarges erbeni (Meischner, 1965) [species] †Richterarges aquilonius (Whittington, 1961) [species] †Richterarges bigener (Bolton, 1965) [species] †Richterarges echinatus (Thomas in Thomas & Narbonne, 1979) [species] †Richterarges ethnikos (Lane et al., 1980) [species] †Richterarges facetus Campbell & Chatterton, 2007 [species] †Richterarges gibbus (Angelin, 1854) [species] †Richterarges ormistoni (Whittington, 1961) [species] †Richterarges ptyonurus (Hall & Clarke, 1888) [species] †Richterarges rolfei (Lamont, 1965) [species] †Tairongia bachuensis Zhou et al., 2014 [species] †Tairongia browni (Sun, 1931) [species] †Terataspis grandis (Hall, 1861) [species] †Terranovia gratsianovae Yolkin & Ormiston, 1985 [species] †Terranovia nalivkini Maximova, 1977 [species] †Terranovia radugini (Weber, 1949) [species] †Trimerolichas marginatus (Lindström, 1885) [species] †Trochurus bartonensis (Fletcher, 1950) [species] †Trochurus buffoides Vokac, 1999 [species] †Trochurus bulbosus Phleger, 1937 [species] †Trochurus byrnesanus Miller & Gurley, 1893 [species] †Trochurus halli Foerste, 1917 [species] †Trochurus nasutus (Weller, 1907) [species] †Trochurus sarfi Snajdr, 1980 [species] †Trochurus speciosus Beyrich, 1845 [species] †Trochurus toernquisti Gürich, 1901 [species] †Uralichas avus (Barrande, 1872) [species] †Uralichas frangipana (Šnajdr, 1984) [species] †Uralichas giganteus (Holub, 1911) [species] †Uralichas gutierrezi Rabano, 1989 [species] †Uralichas heberti (Rouault, 1849) [species] †Uralichas hispanicus (Verneuil & Barrande, 1856) [species] †Uripes ambiguus (Barrande, 1846) [species] †Uripes heteroclytus (Barrande, 1846) [species] †Uripes obtusicaudatus (Troedsson, 1929) [species] †Uripes scutalis (Salter, 1873) [species] †Acidaspis aviensis Bruton, 1968 [species] †Acidaspis bispinosa McCoy, 1846 [species] †Acidaspis brightii Murchison, 1839 [species] †Acidaspis evoluta Törnquist, 1884 [species] †Acidaspis laticapitata Warburg, 1925 [species] †Acidaspis viruana Oepik, 1937 [species] †Anacaenaspis callipareos (Thomson, 1857) [species] †Anacaenaspis dealgach (Lamont, 1948) [species] †Anacaenaspis wrighti Chatterton & Ludvigsen, 2004 [species] †Anacaenaspis zedei Chatterton & Ludvigsen, 2004 [species] †Apianurus abietinus Bruton, 1965 [species] †Apianurus asklundi (Thorslund, 1940) [species] †Apianurus barbatus Whittington, 1956 [species] †Apianurus clevei (Warburg, 1925) [species] †Apianurus furcata (Linnarsson, 1869) [species] †Apianurus glaber Whittington, 1956 [species] †Apianurus kuckersianus (Schmidt, 1885) [species] †Apianurus narrawayi (Raymond, 1910) [species] †Apianurus parabarbatus Chatterton & Ludvigsen, 1976 [species] †Apianurus thorslundi Bruton, 1965 [species] †Apianurus vikarbyensis Bruton, 1966 [species] †Boedaspis ensifer Whittington & Bohlin, 1958 [species] †Boedaspis solis (Oepik, 1925) [species] †Calipernurus insolitus Whittington, 1956 [species] †Ceratocara argentina Chatterton et al., 1997 [species] †Ceratocephala exigua Whittington, 1963 [species] †Ceratocephala goniata Warder, 1838 [species] †Ceratocephala graffhami Shaw, 1974 [species] †Ceratocephala impedita Etheridge & Mitchell, 1896 [species] †Ceratocephala laciniata Whittington & Evitt, 1953 [species] †Ceratocephala laticapitata Warburg, 1925 [species] †Ceratocephala phalaenocephala Mitchell, 1919 [species] †Ceratocephala rarispina Whittington, 1956 [species] †Ceratocephala triacantheis Whittington & Evitt, 1953 [species] †Ceratocephala vexilla Chatterton, 1971 [species] †Ceratocephala (Ceratocephalina) tridens Whittington, 1956 [species] †Dalaspis boltoni Chatterton & Ludvigsen, 2004 [species] †Dalaspis pustulosa Chatterton & Ludvigsen, 2004 [species] †Diacanthaspis decacantha Angelin, 1854 [species] †Diacanthaspis elapsus Tripp, 1954 [species] †Diacanthaspis lepidus Whittington, 1956 [species] †Diacanthaspis orandensis Whittington, 1956 [species] †Diacanthaspis scitulus Whittington, 1956 [species] †Diacanthaspis secretus Whittington, 1956 [species] †Diacanthaspis trispineus Young, 1973 [species] †Diacanthaspis ulrichi Whittington, 1956 [species] †Diacanthaspis (Diacanthaspis) cooperi (Whittington, 1941) [species] †Dicranurus oviformis Lu & Chang, 1974 [species] †Exallaspis bruntoni Chatterton & Ludvigsen, 2004 [species] †Exallaspis maccrackeni Chatterton & Ludvigsen, 2004 [species] †Kettneraspis copelandi Chatterton & Ludvigsen, 2004 [species] †Kettneraspis ramskoeldi Chatterton & Ludvigsen, 2004 [species] †Kettneraspis wrightae Adrain & Ramskold, 1997 [species] †Koneprusia dahmani Chatterton et al., 2006 [species] †Koneprusia (Koneprusia) brikelos Chatterton et al., 1979 [species] †Leonaspis acarescola Howells, 1982 [species] †Leonaspis clavatus Chatterton, 1971 [species] †Leonaspis haddanei Chatterton et al., 2006 [species] †Leonaspis jenkinsi (Etheridge & Mitchell, 1896) [species] †Leonaspis leonhardi (Barrande, 1846) [species] †Leonaspis lothiana (Lamont, 1948) [species] †Leonaspis olini (Marek, 1952) [species] †Leonaspis rattei (Etheridge & Mitchell, 1896) [species] †Leonaspis spinicurva Chatterton et al., 2006 [species] †Leonaspis wellingtonensis Chatterton et al., 1979 [species] †Miraspis cornuta (Beyrich, 1846) [species] †Miraspis mira (Barrande, 1846) [species] †Miraspis solbergensis Bruton, 1966 [species] †Nevadaprusia cortezensis Adrain et al., 2008 [species] †Periallaspis uncinus Bruton, 1966 [species] †Primaspis ascitus Whittington, 1956 [species] †Primaspis bestorpensis Bruton, 1966 [species] †Primaspis churkini Ross & Shaw, 1972 [species] †Primaspis evoluta (Törnquist, 1884) [species] †Primaspis multispinosa Bruton, 1965 [species] †Primaspis (Primaspis) bucculenta McNamara, 1979 [species] †Primaspis (Primaspis) primordialis (Barrande, 1846) [species] †Primaspis (Taemasaspis) bowningensis (Etheridge & Mitchell, 1896) [species] †Primaspis (Taemasaspis) campbelli Chatterton, 1971 [species] †Radiaspis bispinosus Chatterton, 1971 [species] †Selenopeltis gallicus Bruton & Henry, 1978 [species] †Selenopeltis macrophthalmus Kloucek, 1916 [species] †Selenopeltis vultuosa Pribyl & Vanek, 1966 [species] †Stelckaspis perplexa (Billings, 1866) [species] †Taemasaspis mrirtensis (Feist, 2002) [species] †Whittingtonia bispinosa (McCoy, 1846) [species] †Whittingtonia whittingtoni Kielan, 1960 [species] †Loxopeltis problematica Rasetti, 1957 [species] †Megalurites nitidum Costa, 1864 [species] †Metapopristis macropthalmus Costa, 1850 [species] †Missisquoiidae [family] †Lunacrania spicata Fortey, 1983 [species] †Parakoldinioidia callosa Qian, 1985 [species] †Parakoldinioidia triangulata (Endo, 1937) [species] †Pseudokoldinioidia bifurcata Qian, 1985 [species] †Tangshanaspis zhaogezhuangensis Zhou & Zhang, 1978 [species] †Namanoiidae [family] †Inouyina yichunensis Duan & An, 2001 [species] †Nehanniaspis prima Fritz, 1972 [species] †Nelsonia schesis Palmer & Gatehouse, 1972 [species] †Neomalungia magna Luo et al., 2008 [species] †Odontopleurida [order] †Prodamesella convexa Chang, 1957 [species] †Prodamesella punctata Ergaliev, 1980 [species] †Olenellida [order] †Mesonacis vermontanus (Hall, 1859) [species] †Ordosiidae [family] †Kontrastina samodiica Rozova, 1964 [species] †Taitzuia abnormis Zhang et al., 1980 [species] †Taitzuina lubrica Zhang & Yuan, 1981 [species] †Peculicephalina jingxianensis Qian, 1985 [species] †Perissopyge phenax Blaker et al., 1996 [species] †Perissopyge triangulata Blaker et al., 1996 [species] †Phacopida [order] †Acastidae [family] †Acaste andersoni Edgecombe, 2007 [species] †Acaste downingiae (Murchison, 1839) [species] †Acastoides haddadi Chatterton et al., 2006 [species] †Acastoides zguilmensis Chatterton et al., 2006 [species] †Coltraneia effelesa Chatterton et al., 2006 [species] †Erbenochile issoumourensis Chatterton & Gibb, 2010 [species] †Greenops perijaensis da Gloria et al., 2000 [species] †Hollardops aithassainorum Chatterton et al., 2006 [species] †Kayserops tamnrherta Chatterton et al., 2006 [species] †Kloucekia apiculata (McCoy, 1851) [species] †Kloucekia phillipsii (Barrande, 1846) [species] †Phacopidina harnagensis Bancroft, 1949 [species] †Phacopidina micheli (Tromelin, 1877) [species] †Psychopyge elegans Termier & Termier, 1950 [species] †Psychopyge hammerorum Chatterton et al., 2006 [species] †Psychopyge praestans Morzadec, 2001 [species] †Rhenops odremani da Gloria et al., 2000 [species] †Walliserops hammii Chatterton et al., 2006 [species] †Walliserops lindoei Chatterton & Gibb, 2010 [species] †Walliserops tridens Chatterton et al., 2006 [species] †Walliserops trifurcatus Morzadec, 2001 [species] †Bevanopsis ulrichi Cooper, 1953 [species] †Calymenidae [family] †Calymene australis Etheridge & Mitchell, 1917 [species] †Calymene barnesi Chatterton & Ludvigsen, 2004 [species] †Calymene breviceps Raymond, 1916 [species] †Calymene bufo Green, 1832 [species] †Calymene callicephala Green, 1832 [species] †Calymene celebra (Raymond, 1916) [species] †Calymene conradi Emmons, 1855 [species] †Calymene frontosa Lindström, 1885 [species] †Calymene gamachei Chatterton & Ludvigsen, 2004 [species] †Calymene granulosa Foerste, 1909 [species] †Calymene hadyardensis Lamont, 1949 [species] †Calymene marginata Shirley, 1936 [species] †Calymene niagarensis Hall, 1843 [species] †Calymene nowlani Chatterton & Ludvigsen, 2004 [species] †Calymene polgari Siveter & Chatterton, 1996 [species] †Calymene retrorsa Foerste, 1910 [species] †Calymene ubitquitosus Howells, 1982 [species] †Diacalymene gabrielsi Siveter & Chatterton, 1996 [species] †Diacalymene lesperancei Chatterton & Ludvigsen, 2004 [species] †Diacalymene schucherti (Twenhofel, 1928) [species] †Flexicalymene croneisi (Roy, 1941) [species] †Flexicalymene magnipapilla Stumm & Kauffman, 1958 [species] †Flexicalymene meeki (Foerste, 1910) [species] †Flexicalymene peregrina Zhou & Zhou, 2006 [species] †Flexicalymene planilabra Stumm & Kauffman, 1958 [species] †Flexicalymene planimarginata (Reed, 1906) [species] †Flexicalymene praelongicephala Stumm & Kauffman, 1958 [species] †Flexicalymene quadricapita Stumm & Kauffman, 1958 [species] †Flexicalymene scabustula Siveter, 1977 [species] †Flexicalymene scotica Lamont, 1949 [species] †Flexicalymene senaria (Conrad, 1841) [species] †Flexicalymene shirleyi Tripp, 1954 [species] †Flexicalymene trinucleina Tullberg, 1882 [species] †Flexicalymene (Flexicalymene) caractaci Salter, 1865 [species] †Flexicalymene (Onnicalymene) jemtlandica (Thorslund, 1940) [species] †Flexicalymene (Onnicalymene) onniensis (Shirley, 1936) [species] †Flexicalymene (Onnicalymene) scabustula Siveter, 1976 [species] †Flexicalymene (Reacalymene) limba (Shirley, 1936) [species] †Flexicalymene (Reacalymene) pusulosa Shirley, 1936 [species] †Gravicalymene angustior (Chapman, 1915) [species] †Gravicalymene capitovata Siveter, 1976 [species] †Gravicalymene convolva Shirley, 1936 [species] †Gravicalymene quadrilobata Chatterton, 1971 [species] †Neseuretus tristani (Brongniart & Desmarest, 1817) [species] †Papillicalymene husseyi Stumm & Kauffman, 1958 [species] †Pharostoma foveolata (Törnquist, 1884) [species] †Pharostoma foveolatum Törnquist, 1884 [species] †Pharostoma leptaenarum (Törnquist, 1884) [species] †Pharostoma nieszkowskii Schmidt, 1894 [species] †Pharostoma obtusum (McCoy, 1846) [species] †Pharostoma pulchra (Beyrich, 1846) [species] †Platycalymene trapezoidalis (Baldis & Pothe, 1995) [species] †Prionocheilus mendax Vanek, 1965 [species] †Prionocheilus narinosum (Siveter, 1976) [species] †Prionocheilus narinosus Siveter, 1977 [species] †Prionocheilus obtusus McCoy, 1846 [species] †Prionocheilus verneuili Rouault, 1847 [species] †Protocalymene mcallisteri Ross & Barnes, 1967 [species] †Reedocalymene unicornis (Reed, 1917) [species] †Salterocoryphe salteri (Rouault, 1851) [species] †Sthenarocalymene aldonensis Reed, 1935 [species] †Sthenarocalymene lirella Siveter, 1976 [species] †Sthenarocalymene quadrata King, 1923 [species] †Synhomalonotus kobayashi Harrington & Leanza, 1957 [species] †Cheiruridae [family] †Acanthoparypha chiropyga Whittington & Evitt, 1953 [species] †Acanthoparypha echinoderma Chatterton & Ludvigsen, 1976 [species] †Acanthoparypha evitti Chatterton & Ludvigsen, 1976 [species] †Acanthoparypha goniopyga Ludvigsen, 1979 [species] †Acanthoparypha perforata Whittington & Evitt, 1953 [species] †Acanthoparypha subcircularis (Bradley, 1930) [species] †Areia bohemica Barrande, 1868 [species] †Borealaspis biformis Ludvigsen, 1976 [species] †Borealaspis numitor (Billings, 1866) [species] †Borealaspis whittakerensis Ludvigsen, 1976 [species] †Ceraurinella arctica Ludvigsen, 1979 [species] †Ceraurinella brevispina Ludvigsen, 1979 [species] †Ceraurinella chondra Whittington & Evitt, 1953 [species] †Ceraurinella intermedia (Kielan, 1955) [species] †Ceraurinella kingstoni Chatterton & Ludvigsen, 1976 [species] †Ceraurinella latipyga Shaw, 1968 [species] †Ceraurinella longispina Ludvigsen, 1979 [species] †Ceraurinella media Ludvigsen, 1979 [species] †Ceraurinella nahanniensis Chatterton & Ludvigsen, 1976 [species] †Ceraurinella necra Ludvigsen, 1979 [species] †Ceraurinella oepiki Edgecombe et al., 1999 [species] †Ceraurinella polydorus (Billings, 1865) [species] †Ceraurinella pompilia (Billings, 1865) [species] †Ceraurinella seriata Ludvigsen, 1979 [species] †Ceraurinella tenuisculptus (Bradley, 1930) [species] †Ceraurinella typa Cooper, 1953 [species] †Ceraurinella zhoui Edgecombe et al., 1999 [species] †Ceraurinus craigensis Tripp, 1954 [species] †Ceraurinus icarus (Billings, 1860) [species] †Ceraurinus marginatus Barton, 1913 [species] †Ceraurinus platycanthus Bradley, 1930 [species] †Cerauroides elongatus Kobayashi & Hamada, 1974 [species] †Cerauroides orientalis Kobayashi & Hamada, 1973 [species] †Ceraurus blussoni Ludvigsen, 1979 [species] †Ceraurus gabrielsi Ludvigsen, 1979 [species] †Ceraurus globulobatus Bradley, 1930 [species] †Ceraurus hirsuitus Ludvigsen, 1979 [species] †Ceraurus hydei (Weller, 1907) [species] †Ceraurus infrequens Phleger, 1933 [species] †Ceraurus intermedia Kielan, 1955 [species] †Ceraurus latifrons Warburg, 1925 [species] †Ceraurus mackenziensis Ludvigsen, 1979 [species] †Ceraurus maewestoides Ludvigsen, 1979 [species] †Ceraurus matranseris Sinclair, 1947 [species] †Ceraurus milleranus Miller & Gurley, 1897 [species] †Ceraurus pleurexanthemus Green, 1832 [species] †Ceraurus ruidus Cooper, 1953 [species] †Ceraurus serratus Ludvigsen, 1979 [species] †Ceraurus tuberosus Troedsson, 1928 [species] †Ceraurus whittingtoni Evitt, 1953 [species] †Cheirurus clasonii Törnquist, 1905 [species] †Cheirurus clasoni Törnquist, 1905 [species] †Cheirurus dilatatus Raymond, 1916 [species] †Cheirurus glaber Angelin, 1854 [species] †Cheirurus juvenis (Salter, 1848) [species] †Cheirurus niagarensis (Hall, 1868) [species] †Cheirurus nuperus Billings, 1866 [species] †Cheirurus patens Raymond, 1916 [species] †Cheirurus punctatus Angelin, 1854 [species] †Cheirurus tarquininus Billings, 1863 [species] †Cheirurus tornquisti Warburg, 1925 [species] †Cheirurus welleri Raymond, 1916 [species] †Cheirurus (Crotalocephalina) oxina Holloway & Neil, 1982 [species] †Contracheirurus errator Lane, 1984 [species] †Crotalocephalus struszi Chatterton & Wright, 1986 [species] †Cyrtometopella askerensis Nikolaisen, 1961 [species] †Cyrtometopella rosenthali (Schmidt, 1881) [species] †Cyrtometopella tumula Nikolaisen, 1961 [species] †Deiphon angelini Warburg, 1925 [species] †Deiphon barrandei Whittard, 1934 [species] †Eccoptochile almaldensis (Romano, 1980) [species] †Eccoptochile clavigera (Beyrich, 1845) [species] †Eccoptochile guillieri Tromelin, 1873 [species] †Eccoptochile mariana Verneuil & Barrande, 1856 [species] †Eccoptochile perlata Hawle & Corda, 1847 [species] †Eccoptochile scuticauda (Barrande, 1846) [species] †Forteyops sexapugia (Ross, 1951) [species] †Gabriceraurus dentatus (Raymond & Barton, 1913) [species] †Hadromeros elongatus (Reed, 1931) [species] †Hadromeros keisleyensis (Reed, 1896) [species] †Hadromeros subulatus Linnarsson, 1869 [species] †Heliomera albata Whittington, 1963 [species] †Heliomeroides alacer Whittington, 1963 [species] †Heliomeroides evitti Baldis & Pothe, 1995 [species] †Heliomeroides freschaufae Chatterton, 1980 [species] †Heliomeroides raymondi (Bradley, 1930) [species] †Heliomeroides teres Evitt, 1951 [species] †Heliomeroides treta Evitt, 1951 [species] †Hemisphaerocoryphe elliptica (Lu, 1975) [species] †Hemisphaerocoryphe granulata Angelin, 1854 [species] †Hemisphaerocoryphe inflatus Nikolaisen, 1961 [species] †Hemisphaerocoryphe platinflata Hansen, 2005 [species] †Hemisphaerocoryphe pseudohemicranium (Nieszkowski, 1859) [species] †Hemisphaerocoryphe sphaericus (Esmark, 1833) [species] †Holia anacantha Ludvigsen, 1979 [species] †Holia cimelia Whittington & Evitt, 1953 [species] †Holia glabra Adrain, 1998 [species] †Holia magnaspina Bradley, 1930 [species] †Holia secristi Whittington & Evitt, 1953 [species] †Hyrokybe canadensis (Billings, 1866) [species] †Hyrokybe copelandi (Perry & Chatterton, 1979) [species] †Hyrokybe hadnagyi Chatterton & Perry, 1984 [species] †Hyrokybe julli Chatterton & Perry, 1984 [species] †Hyrokybe lenzi Chatterton & Perry, 1984 [species] †Hyrokybe lightfooti Adrain, 1998 [species] †Hyrokybe youngi Adrain, 1998 [species] †Ichiyamella subglobula Kobayashi & Hamada, 1986 [species] †Kawina arnoldi Whittington, 1963 [species] †Kawina chazyensis (Raymond, 1905) [species] †Kawina divergens Reed, 1945 [species] †Kawina griphus (Whittington, 1963) [species] †Kawina limbata Whittington, 1963 [species] †Kawina mercurius (Billings, 1865) [species] †Kawina prolificus (Billings, 1865) [species] †Kawina prominulus (Whittington, 1963) [species] †Kawina scrobiculus (Whittington, 1963) [species] †Kawina sinica Zhou et al., 2014 [species] †Kawina torulus (Whittington, 1963) [species] †Kawina vulcanus (Billings, 1865) [species] †Kawina webbi Hintze, 1952 [species] †Kawina wilsoni Ross, 1972 [species] †Lehua argus Whittington, 1963 [species] †Nieszkowskia cephaloceras Nieszkowski, 1857 [species] †Nieszkowskia cephaloceros (Nieszkowski, 1857) [species] †Nieszkowskia jakei Edgecombe et al., 1999 [species] †Nieszkowskia norvegica Nikolaisen, 1961 [species] †Nieszkowskia satyrus Billings, 1865 [species] †Nieszkowskia yongyii Edgecombe et al., 1999 [species] †Pandaspinapyga dactyla Chatterton & Ludvigsen, 1976 [species] †Pandaspinapyga projecta (Esker, 1961) [species] †Pandaspinapyga salsa Esker, 1964 [species] †Paraceraurus aculeatus (Eichwald, 1860) [species] †Paraceraurus helgoeyensis Nikolaisen, 1961 [species] †Paraceraurus perlongus (Brøgger, 1882) [species] †Paraceraurus ruedemanni (Raymond, 1916) [species] †Parayoungia brennardi (Chatterton & Perry, 1984) [species] †Parayoungia eleyae Chatterton & Perry, 1984 [species] †Parayoungia folinsbeei (Chatterton & Perry, 1984) [species] †Parayoungia mclaughlini Adrain, 1998 [species] †Parayoungia tuberculata Chatterton & Perry, 1984 [species] †Placoparina sedgwickii (McCoy, 1849) [species] †Pompeckia minor Warburg, 1925 [species] †Pompeckia wegelini Angelin, 1854 [species] †Proromma bregmops Lane, 1971 [species] †Pseudocheirurus gomiensis Kobayashi & Hamada, 1985 [species] †Pseudosphaerexochus (Pateraspis) andegavus Bureau, 1900 [species] †Pseudosphaerexochus bulbosus Nikolaisen, 1965 [species] †Pseudosphaerexochus cancrura (Salter, 1853) [species] †Pseudosphaerexochus conformis (Angelin, 1854) [species] †Pseudosphaerexochus densigranulatus Nikolaisen, 1965 [species] †Pseudosphaerexochus granulatus Angelin, 1854 [species] †Pseudosphaerexochus lata (Zhang, 1981) [species] †Pseudosphaerexochus laticeps (Linnarsson, 1866) [species] †Pseudosphaerexochus octolobatus (McCoy, 1849) [species] †Pseudosphaerexochus roemeri (Schmidt, 1881) [species] †Pseudosphaerexochus tectus Ingham, 1974 [species] †Pseudosphaerexochus tuberculatus Warburg, 1925 [species] †Pseudosphaerexochus zapata (Adrain & Fortey, 1997) [species] †Pseudosphaerexochus (Pseudosphaerexochus) bulbosus Nikolaisen, 1965 [species] †Pseudosphaerexochus (Pseudosphaerexochus) dubius Kielan-Jaworowska et al., 1991 [species] †Pseudosphaerexochus (Pseudosphaerexochus) ekphyma Lane, 1971 [species] †Pseudosphaerexochus (Pseudosphaerexochus) hemicranium (Kutorga, 1854) [species] †Pseudosphaerexochus (Pseudosphaerexochus) laticeps Linnarsson, 1866 [species] †Pseudosphaerexochus (Pseudosphaerexochus) parallelus Kielan-Jaworowska et al., 1991 [species] †Pseudosphaerexochus (Pseudosphaerexochus) ravni Olin, 1906 [species] †Pseudosphaerexochus (Pseudosphaerexochus) wolkae Kielan, 1960 [species] †Radiurus adraini Chatterton & Ludvigsen, 2004 [species] †Remipyga glabra Whittington, 1954 [species] †Sphaerexochus arenosis Chatterton & Ludvigsen, 1977 [species] †Sphaerexochus arenosus Chatterton & Ludvigsen, 1976 [species] †Sphaerexochus atacius Ludvigsen, 1979 [species] †Sphaerexochus brandlyi Chatterton & Perry, 1984 [species] †Sphaerexochus bridgei Cooper & Kindle, 1936 [species] †Sphaerexochus britanicus Dean, 1971 [species] †Sphaerexochus calvus Mc Coy, 1846 [species] †Sphaerexochus dimorphus Whittington & Evitt, 1953 [species] †Sphaerexochus eurys Tripp, 1962 [species] †Sphaerexochus fibrisulcatus Lu, 1975 [species] †Sphaerexochus glaber Holloway, 1980 [species] †Sphaerexochus hapsidotus Whittington & Evitt, 1953 [species] †Sphaerexochus hiratai Kobayashi & Hamada, 1974 [species] †Sphaerexochus hisingeri Warburg, 1925 [species] †Sphaerexochus johnstoni Chatterton & Perry, 1984 [species] †Sphaerexochus laciniatus Lindström, 1885 [species] †Sphaerexochus latifrons Angelin, 1854 [species] †Sphaerexochus molongloensis Chatterton & Campbell, 1980 [species] †Sphaerexochus parvus Billings, 1865 [species] †Sphaerexochus planirachis Kobayashi & Hamada, 1974 [species] †Sphaerexochus pulcher Whittington & Evitt, 1953 [species] †Sphaerexochus romingeri Hall, 1868 [species] †Sphaerexochus scabridus Angelin, 1854 [species] †Sphaerexochus tuberculatus Warburg, 1925 [species] †Sphaerexochus valcourensis Shaw & Bolton, 2011 [species] †Sphaerocoryphe arachniformis Bradley, 1930 [species] †Sphaerocoryphe dentata Angelin, 1854 [species] †Sphaerocoryphe gemina Tripp et al., 1997 [species] †Sphaerocoryphe kingi Ingham, 1974 [species] †Sphaerocoryphe longispina Tripp et al., 1997 [species] †Sphaerocoryphe ludvigseni Chatterton, 1980 [species] †Sphaerocoryphe psiles Tripp, 1954 [species] †Sphaerocoryphe punctata Angelin, 1854 [species] †Sphaerocoryphe robustus Walcott, 1875 [species] †Sycophantia seminosa Fortey, 1980 [species] †Whittakerites planatus Ludvigsen, 1976 [species] †Xystocrania glaucus (Billings, 1865) [species] †Xystocrania perforator (Billings, 1865) [species] †Xystocrania pyriformis Ross, 1972 [species] †Youngia boucoti Chatterton & Perry, 1984 [species] †Youngia johnsoni Chatterton & Perry, 1984 [species] †Youngia kathyae Chatterton & Perry, 1984 [species] †Youngia steineri Chatterton & Perry, 1984 [species] †Youngia trispinosus (Young, 1868) [species] †Dalmanitidae [family] †Bessazoon gibbae Chatterton & Ludvigsen, 2004 [species] †Crozonaspis chauveli Henry, 1980 [species] †Crozonaspis dujardini (Rouault, 1847) [species] †Crozonaspis incerta (Deslongchamps, 1825) [species] †Crozonaspis kerfornei Clarkson & Henry, 1969 [species] †Crozonaspis morenensis Hammann, 1972 [species] †Crozonaspis rouaulti (Tromelin & Lebesconte, 1876) [species] †Crozonaspis struvei Henry, 1968 [species] †Dalmanites caudatus Bruennich, 1883 [species] †Dalmanites jupiterensis (Twenhofel, 1928) [species] †Dalmanitina socialis (Barrande, 1846) [species] †Dalmanitina tellecheai (Harrington & Leanza, 1957) [species] †Dalmanitina (Dalmanitina) acuta Hammann, 1971 [species] †Dalmanitina (Dalmanitina) philippoti Henry, 1980 [species] †Dalmanitina (Eodalmanitina) destombesi (Henry, 1965) [species] †Daytonia jollieti Chatterton & Ludvigsen, 2004 [species] †Eodalmanitina chillonensis Hammann, 1972 [species] †Eodalmanitina macrophtalma (Brongniart, 1822) [species] †Guichenia dufouri (Tromelin & Lebesconte, 1876) [species] †Morgatia hupei (Nion & Henry, 1967) [species] †Morgatia primitiva Hammann, 1972 [species] †Retamaspis melendezi Hammann, 1972 [species] †Zeliszkella deshayesi (Barrande, 1846) [species] †Zeliszkella (Zeliszkella) lapeyrei (Bureau, 1889) [species] †Zeliszkella (Zeliszkella) renaudae Henry, 1980 [species] †Encrinuridae [family] †Atractopyge brevicauda (Angelin, 1854) [species] †Atractopyge confusa Owen, 1981 [species] †Atractopyge dalmani Owen & Tripp, 1988 [species] †Atractopyge dentata (Esmark, 1833) [species] †Atractopyge killochanensis Tripp, 1954 [species] †Atractopyge kutorgae (Schmidt, 1881) [species] †Atractopyge progemma Owen, 1981 [species] †Atractopyge thor Ludvigsen, 1979 [species] †Atractopyge verrucosa (Dalman, 1827) [species] †Brianurus jeffersoni (Edgecombe, 1994) [species] †Coronocephalus kobayashii Hamada, 1959 [species] †Cybeloides anna Ludvigsen, 1979 [species] †Cybeloides buttsi Cooper, 1953 [species] †Cybeloides calliteles Phleger, 1933 [species] †Cybeloides cimelia Chatterton & Ludvigsen, 1976 [species] †Cybeloides girvanensis Reed, 1906 [species] †Cybeloides iowensis Slocum, 1913 [species] †Cybeloides loveni (Linnarsson, 1869) [species] †Cybeloides parrotti Whittington, 1965 [species] †Cybeloides prima (Narraway & Raymond, 1906) [species] †Cybeloides spinifera Tripp, 1954 [species] †Cybeloides virginiensis Cooper, 1953 [species] †Cybeloides (Paracybeloides) girvanensis (Reed, 1906) [species] †Cybelurus brutoni Fortey, 1980 [species] †Cybelurus halo Fortey, 1980 [species] †Cybelurus mira (Billings, 1865) [species] †Cybelurus occidentalis Dean, 1973 [species] †Deacybele arenosa (McCoy, 1846) [species] †Deacybele conjuncta Owen, 1981 [species] †Deacybele gracilis (Nikolaisen, 1961) [species] †Deacybele pauca Whittington, 1965 [species] †Dindymene brevicaudata Kolobova, 1972 [species] †Dindymene fridericiaugusti Hawle & Corda, 1847 [species] †Dindymene longicaudata Kielan, 1960 [species] †Dindymene megacranidia Kobayashi & Hamada, 1985 [species] †Dindymene ornata Linnarsson, 1869 [species] †Dindymene ovalis Weir, 1959 [species] †Dindymene plasi Kielan, 1960 [species] †Dindymene whittingtoni Owen & Bruton, 2012 [species] †Distyrax maccormicki Chatterton & Ludvigsen, 2004 [species] †Elsarella rotunda (Mannil, 1977) [species] †Encrinuroides edseli (Edgecombe et al., 1998) [species] †Encrinuroides gelaisi (Lespérance & Desbiens, 1995) [species] †Encrinuroides hornei Dean, 1974 [species] †Encrinuroides obesus Tripp, 1965 [species] †Encrinuroides periops Tripp, 1967 [species] †Encrinuroides regularis Pärnaste, 2006 [species] †Encrinuroides sexcostata (Salter in Phillips & Salter, 1848) [species] †Encrinuroides stincharensis (Reed, 1927) [species] †Encrinurus borenorensis Fletcher, 1950 [species] †Encrinurus confusevarus Howells, 1982 [species] †Encrinurus deomenos Tripp, 1962 [species] †Encrinurus diabolus Tripp et al., 1977 [species] †Encrinurus expansus Haswell, 1865 [species] †Encrinurus fimbriatus Kobayashi & Hamada, 1974 [species] †Encrinurus hagshawensis Lamont, 1965 [species] †Encrinurus hastula Phleger, 1933 [species] †Encrinurus ishii Kobayashi & Hamada, 1974 [species] †Encrinurus jini Chatterton & Ludvigsen, 2004 [species] †Encrinurus lamonti Tripp, 1957 [species] †Encrinurus laurentinus Twenhofel, 1928 [species] †Encrinurus longi Chatterton & Ludvigsen, 2004 [species] †Encrinurus mamelon Kobayashi & Hamada, 1974 [species] †Encrinurus mullochensis Reed, 1931 [species] †Encrinurus multisegmentatus (Portlock, 1843) [species] †Encrinurus niquivilensis Harrington & Leanza, 1957 [species] †Encrinurus nodai Kobayashi & Hamada, 1974 [species] †Encrinurus octonarius Phleger, 1933 [species] †Encrinurus praecursor Tripp, 1954 [species] †Encrinurus punctatus (Wahlenberg, 1821) [species] †Encrinurus reflexus Raymond, 1916 [species] †Encrinurus rosensteinae Tripp et al., 1977 [species] †Encrinurus similis Kobayashi & Hamada, 1985 [species] †Encrinurus spicatus Tripp, 1974 [species] †Encrinurus squarrosus Howells, 1982 [species] †Encrinurus stateratus Howells, 1982 [species] †Encrinurus stenorhachis Kobayashi & Hamada, 1985 [species] †Encrinurus striatus Angelin, 1854 [species] †Encrinurus subtrigonalis Kobayashi & Hamada, 1985 [species] †Encrinurus tosensis Kobayashi & Hamada, 1974 [species] †Encrinurus trispinosus (Reed, 1914) [species] †Encrinurus yokokurensis Kobayashi & Hamada, 1974 [species] †Erratencrinurus (Celtencrinurus) kiaeri Owen, 1981 [species] †Erratencrinurus (Celtencrinurus) multisegmentatus (Portlock, 1843) [species] †Erratencrinurus capricornu Krueger, 1971 [species] †Erratencrinurus lapworthi (Tripp, 1980) [species] †Erratencrinurus neuter (Evitt & Tripp, 1978) [species] †Erratencrinurus spicatus (Tripp, 1974) [species] †Erratencrinurus trippi Edgecombe et al., 1999 [species] †Erratencrinurus uncatus (Evitt & Tripp, 1977) [species] †Erratencrinurus vigilans (Hall, 1847) [species] †Erratencrinurus (Erratencrinurus) brutoni Owen, 1981 [species] †Erratencrinurus (Erratencrinurus) imperfectus Owen, 1981 [species] †Frencrinuroides capitonis (Frederickson, 1964) [species] †Frencrinuroides gibber (Dean, 1979) [species] †Johntempleia pamae Edgecombe, 1994 [species] †Lasaguaditas oweni Edgecombe et al., 1998 [species] †Lyrapyge araneosa (Lisogor, 1965) [species] †Lyrapyge areonosa (Lisogor, 1965) [species] †Lyrapyge ebriosus Fortey, 1980 [species] †Mackenziurus emielityi Gass, 1999 [species] †Mackenziurus lauriae Gass et al., 1992 [species] †Oedicybele kingi Whittington, 1938 [species] †Perryus severnensis Gass & Mikulic, 1982 [species] †Physemataspis coopi Evitt & Tripp, 1977 [species] †Physemataspis insularis (Shaw, 1968) [species] †Physemataspis mirabilis Tripp, 1980 [species] †Physemataspis tholus (Evitt & Tripp, 1977) [species] †Physemataspis torulatus (Evitt & Tripp, 1977) [species] †Sinocybele thomasi Edgecombe & Webby, 2006 [species] †Struszia petebesti Adrain & Edgecombe, 1997 [species] †Walencrinuroides autochthon (Tripp, 1962) [species] †Walencrinuroides polypleura (Tripp, 1967) [species] †Walencrinuroides rarus (Walcott, 1877) [species] †Walencrinuroides rolfi Moss & Westrop, 2014 [species] †Walencrinuroides tremblayi Moss & Westrop, 2014 [species] †Wuoaspis changningensis (Zhang, 1974) [species] †Hammannopyge unica (Thomson, 1857) [species] †Hapsiceraurus hispidus Whittington, 1954 [species] †Homalonotidae [family] †Calymenella bayani (Tromelin & Lebesconte, 1875) [species] †Calymenella boisseli Bergeron, 1890 [species] †Calymenella zaplensis Harrington & Leanza, 1957 [species] †Colpocoryphe adisol Šnajdr, 1984 [species] †Colpocoryphe grandis Snajdr, 1956 [species] †Colpocoryphe inopinata Novak & Perner, 1918 [species] †Colpocoryphe rouaulti Henry, 1970 [species] †Eohomalonotus brongniarti (Deslongchamps, 1825) [species] †Eohomalonotus incertus (Bigot, 1888) [species] †Eohomalonotus sdzuyi Hammann & Henry, 1978 [species] †Eohomalonotus vicaryi (Salter, 1865) [species] †Eohomalonotus villicumensis (Baldis & Blasco, 1975) [species] †Homalonotus bisulcatus McCoy, 1851 [species] †Iberocoryphe bonissenti Morière, 1885 [species] †Iberocoryphe deslongchampsi (Tromelin, 1877) [species] †Iberocoryphe fugitivus (Tromelin, 1877) [species] †Iberocoryphe serratus (Tromelin, 1877) [species] †Iberocoryphe verneuili Hammann, 1977 [species] †Kerfornella brevicaudata (Deslongchamps, 1825) [species] †Kerfornella miloni Henry, 1976 [species] †Parahomalonotus calvus Chatterton et al., 2006 [species] †Plaesiacomia oehlerti (Kerforne, 1900) [species] †Plaesiacomia rara Hawle & Corda, 1847 [species] †Homalonotinae [family] †Brongniartella minor (Salter, 1852) [species] †Platycoryphe dangeardi Henry, 1971 [species] †Platycoryphe heberti (Lebesconte, 1887) [species] †Platycoryphe platycephala (Foerste, 1910) [species] †Platycoryphe vieillardi (Tromelin, 1877) [species] †Monorakidae [family] †Carinopyge abscisa Maksimova, 1955 [species] †Carinopyge fracta Masimova, 1955 [species] †Ceratevenkaspis armata Kramaranko, 1952 [species] †Ceratevenkaspis parnaica Balashova, 1960 [species] †Ceratevenkaspis pentagona Balashova, 1960 [species] †Ceratevenkaspis taimyrica Balashova, 1960 [species] †Elasmaspis speciosa Kramarenko, 1956 [species] †Evenkaspis (Evenkaspis) axillaris Kramarenko, 1958 [species] †Evenkaspis (Evenkaspis) galeata Kramarenko, 1958 [species] †Evenkaspis (Evenkaspis) ivanovae Kramarenko, 1952 [species] †Evenkaspis (Evenkaspis) lobata Kramarenko, 1958 [species] †Evenkaspis (Evenkaspis) marina Kramarenko, 1952 [species] †Evenkaspis (Evenkaspis) nikiforovae Maksimova, 1962 [species] †Evenkaspis (Evenkaspis) nordica (Balashova, 1960) [species] †Evenkaspis (Evenkaspis) norilskiensis Balashova, 1960 [species] †Evenkaspis (Evenkaspis) zlobini (Balashova, 1960) [species] †Evenkaspis (Parevenkaspis) egloni Kramarenko, 1952 [species] †Monorakos consimilis Semenova, 1978 [species] †Monorakos kledos Ormiston, 1978 [species] †Monorakos lopatini (Schmidt, 1886) [species] †Monorakos magnus Kramarenko, 1952 [species] †Monorakos morkokensis Maksimova, 1962 [species] †Monorakos mutabilis Kramarenko, 1952 [species] †Monorakos ossacrum Kramarenko, 1962 [species] †Monorakos planiusculus Kramarenko, 1957 [species] †Monorakos planus Kramarenko, 1957 [species] †Monorakos tunguskaensis Kramarenko, 1952 [species] †Phacopidae [family] †Acernaspis copperi Chatterton & Ludvigsen, 2004 [species] †Acernaspis superciliexcelsis Howells, 1982 [species] †Acernaspis xynon Howells, 1982 [species] †Acernaspis (Eskaspis) sufferta (Lamont, 1947) [species] †Acernaspis (Eskaspis) woodburnensis Clarkson et al., 1977 [species] †Acuticryphops acuticeps (Kayser, 1889) [species] †Eldredgeops crassituberculata (Stumm, 1953) [species] †Eldredgeops rana (Green, 1832) [species] †Nephranops dillanus Richter & Richter, 1926 [species] †Nyterops nyter Struve, 1970 [species] †Paciphacops logani (Hall, 1860) [species] †Paciphacops (Paciphacops) microps Chatterton et al., 1979 [species] †Paciphacops (Viaphacops) venezuelensis da Gloria et al., 2000 [species] †Phacops (Boeckops) algericus Alberti, 1983 [species] †Phacops (Omegops) accipitrinus (Phillips, 1841) [species] †Phacops alifrons McCoy, 1851 [species] †Phacops crosslei Etheridge & Mitchell, 1895 [species] †Phacops granulops Chatterton et al., 2006 [species] †Phacops lebesus Chatterton et al., 2006 [species] †Phacops macdonaldi Fletcher, 1950 [species] †Phacops maximus Törnquist, 1884 [species] †Phacops smoothops Chatterton et al., 2006 [species] †Phacops spedeni Chatterton, 1971 [species] †Phacops (Prokops) chlupaci Alberti, 1983 [species] †Prokops moorei Sandford, 2004 [species] †Reedops struveianus Alberti, 1983 [species] †Pharostomatidae [family] †Pharostomina mexicana Robison & Pantoja-Alor, 1968 [species] †Pharostomina trapezoidalis Harrington & Leanza, 1957 [species] †Pilekiidae [family] †Anacheirurus frederici (Salter, 1864) [species] †Macrogrammus pengi Edgecombe et al., 1999 [species] †Macrogrammus rafi Edgecombe et al., 1999 [species] †Metapilekia bilirata Harrington, 1938 [species] †Parapilekia jacquelinae Fortey, 1980 [species] †Pilekia apollo (Billings, 1860) [species] †Pilekia trio Hintze, 1952 [species] †Pliomeroides deferrariisi Harrington, 1938 [species] †Pliomeridae [family] †Colobinion julius (Billings, 1865) [species] †Ectenonotus progenitor Fortey & Droser, 1996 [species] †Ectenonotus whittingtoni Ross & Barnes, 1967 [species] †Evropeites hyperboreus Fortey, 1980 [species] †Hintzeia actinura (Dalman, 1824) [species] †Hintzeia aemula (Hintze, 1952) [species] †Hintzeia celsaora (Ross, 1951) [species] †Hintzeia firmimarginis (Hintze, 1952) [species] †Kanoshia depressus Young, 1973 [species] †Kanoshia kanoshensis (Hintze, 1952) [species] †Kanoshia reticulata Fortey & Droser, 1996 [species] †Ovalocephalus kanlingensis (Zhang, 1981) [species] †Ovalocephalus kelleri Koroleva, 1959 [species] †Ovalocephalus tetrasulcatus Kielan, 1960 [species] †Perissopliomera maclachlani Ross, 1970 [species] †Placoparia borni Hammann, 1977 [species] †Placoparia cambriensis Hicks, 1875 [species] †Placoparia tournemini (Rouault, 1847) [species] †Pliomera tmetophrys Harrington & Leanza, 1957 [species] †Pliomerella americana Cooper, 1953 [species] †Pliomerina martelli (Reed, 1917) [species] †Pliomerina rigida Kolobova, 1972 [species] †Pliomerina serrata Zhou & Zhou, 2006 [species] †Pliomerina trisulcata Edgecombe et al., 1999 [species] †Pliomerops canadensis (Billings, 1859) [species] †Pliomerops lacunatus Dean, 1989 [species] †Pliomerops praematura Fortey, 1980 [species] †Protoencrinurella maitlandi Legg, 1976 [species] †Protopliomerella contracta (Ross, 1951) [species] †Protopliomerops quattuor Hintze, 1952 [species] †Protopliomerops radiatus Kobayashi, 1955 [species] †Pseudocybele altinasuta Hintze, 1952 [species] †Pseudocybele lemurei Hintze, 1952 [species] †Pseudocybele nasuta Ross, 1951 [species] †Pseudomera arachnopyge Fortey & Droser, 1996 [species] †Pseudomera barrandei (Billings, 1865) [species] †Pseudomera billingsi Whittington, 1961 [species] †Rossaspis rossi (Harrington & Leanza, 1957) [species] †Rossaspis superciliosa (Ross, 1951) [species] †Strotactinus insularis (Billings, 1865) [species] †Tesselacauda depressa Ross, 1951 [species] †Prosopiscidae [family] †Prosopiscus praecox Fortey & Shergold, 1984 [species] †Prosopiscus rugosus Lu, 1974 [species] †Prosopiscus subparallelus Lu, 1974 [species] †Pterygometopidae [family] †Achatella achates (Billings, 1860) [species] †Achatella katharina (Bradley, 1930) [species] †Achatella schmidti Warburg, 1925 [species] †Achatella (Achatella) bailyi Salter, 1864 [species] †Achatella (Achatella) consobrina (Tripp, 1954) [species] †Achatella (Achatella) nieszkowskii (Schmidt, 1881) [species] †Achatella (Vironiaspis) kegelensis (Schmidt, 1881) [species] †Achatella (Vironiaspis) kuckersianus (Schmidt, 1881) [species] †Calyptaulax angusta Cooper, 1953 [species] †Calyptaulax annulata (Raymond, 1905) [species] †Calyptaulax brevipostica Cooper, 1953 [species] †Calyptaulax brevis (Roy, 1941) [species] †Calyptaulax brongniarti (Portlock, 1843) [species] †Calyptaulax callicephala (Hall, 1847) [species] †Calyptaulax callirachis (Cooper, 1953) [species] †Calyptaulax cornwalli Ross & Barnes, 1967 [species] †Calyptaulax glabella Cooper, 1930 [species] †Calyptaulax holstonensis (Raymond, 1925) [species] †Calyptaulax incepta Whittington, 1965 [species] †Calyptaulax mesleri Cooper, 1953 [species] †Calyptaulax norvegicus Stormer, 1945 [species] †Calyptaulax sillimani Roy, 1941 [species] †Calyptaulax troosti (Safford & Vogdes, 1889) [species] †Chasmops cambrensis Whittington, 1962 [species] †Chasmops extensa Boeck, 1838 [species] †Chasmops macrourus Sjögren, 1851 [species] †Chasmops odini Eichwald, 1860 [species] †Denella cumera Ludvigsen & Chatterton, 1982 [species] †Denella goodridgii (Schuchert, 1900) [species] †Eomonorachus buttsi (Cooper, 1953) [species] †Eomonorachus divaricatus (Frederickson, 1964) [species] †Eomonorachus intermedius (Walcott, 1879) [species] †Estoniops alifrons (McCoy, 1851) [species] †Estoniops bekkeri Mannil, 1958 [species] †Estoniops exilis (Eichwald, 1858) [species] †Estoniops fjaeckensis Jaanusson & Ramsköld, 1993 [species] †Estoniops maennili Jaanusson & Ramsköld, 1993 [species] †Estoniops oculeus Antsygin, 1970 [species] †Estoniops panderi (Schmidt, 1881) [species] †Estoniops sandbyensis (Olin, 1906) [species] †Ingriops trigonocephala (Schmidt, 1881) [species] †Isalaux canyonensis Frederickson & Pollack, 1952 [species] †Keilapyge laevigatus (Schmidt, 1881) [species] †Keilapyge latus (Antsygin, 1970) [species] †Oelandiops mirificus Jaanusson & Ramsköld, 1993 [species] †Podowrinella straitonensis (Lamont, 1965) [species] †Pterygometopus bredensis Weber, 1948 [species] †Pterygometopus recurvus Brogger, 1887 [species] †Pterygometopus schmidti Warburg, 1925 [species] †Pterygometopus sclerops (Dalman, 1827) [species] †Sceptaspis lincolnensis (Branson, 1909) [species] †Toxochasmops (Schmidtops) maxima (Schmidt, 1881) [species] †Toxochasmops (Schmidtops) maximus Schmidt, 1881 [species] †Toxochasmops (Schmidtops) proavus Roomusoks, 1998 [species] †Toxochasmops (Schmidtops) vironiensis Roomusoks, 1998 [species] †Toxochasmops (Toxochasmops) estonicus Roomusoks, 1998 [species] †Toxochasmops (Toxochasmops) extensus (Boeck, 1838) [species] †Toxochasmops (Toxochasmops) granuliferus Roomusoks, 1998 [species] †Toxochasmops (Toxochasmops) inge Roomusoks, 1953 [species] †Toxochasmops (Toxochasmops) notabilis Roomusoks, 1998 [species] †Toxochasmops (Toxochasmops) vormsiensis Roomusoks, 1998 [species] †Toxochasmops (Toxochasmops) wesenbergensis Schmidt, 1881 [species] †Tricopelta breviceps (Hall, 1872) [species] †Tricopelta mackenziensis Ludvigsen & Chatterton, 1982 [species] †Upplandiops calvus Jaanusson & Ramsköld, 1993 [species] †Valdariops aliquantulus Rõõmusoks, 2000 [species] †Valdariops angustus Rõõmusoks, 2000 [species] †Valdariops eichwaldi (Schmidt, 1881) [species] †Valdariops kernuensis Rõõmusoks, 2000 [species] †Yanhaoia huayinshanensis (Lu, 1975) [species] †Polycyrtaspididae [family] †Hebeia hutoushanensis Zhang & Wang, 1986 [species] †Hebeia pingquanensis Guo & Duan, 1978 [species] †Hebeia pulchera Zhang & Wang, 1986 [species] †Proetida [order] †Aulacopleuridae [family] †Goodsiraspis packardi Adrain & Chatterton, 1993 [species] †Harpidella megalops (McCoy, 1846) [species] †Harpidella occidentalis Owen, 1981 [species] †Harpidella tridens Ingham, 1970 [species] †Harpidella (Harpidella) newlandensis (Begg, 1950) [species] †Harpidella (Harpidella) thomasi Clarkson & Howells, 1981 [species] †Otarion beggi Tripp, 1954 [species] †Otarion diffractum Zenker, 1833 [species] †Otarion filmeri (Mitchell, 1919) [species] †Otarion isoplates Tripp, 1954 [species] †Otarion listron Chatterton et al., 1979 [species] †Otarion spinicaudatum Shaw, 1968 [species] †Otarion stigmatophthalmus (Richter, 1914) [species] †Otarion taganon Chatterton et al., 1979 [species] †Otarion (Otarion) bowningenis (Mitchell, 1888) [species] †Otarion (Otarion) dabrowni Chatterton, 1971 [species] †Otarion (Otarion) horani (Etheridge & Mitchell, 1893) [species] †Otarion (Tricornotarion) struszi Chatterton, 1971 [species] †Aulacopleuroidea [superfamily] †Brachymetopidae [family] †Australosutura llanoensis Brezinski, 1998 [species] †Brachymetopus (Acutimetopus) jesenicianus (Hahn & Hahn, 1977) [species] †Brachymetopus gaoanensis Zhang, 1982 [species] †Brachymetopus jayae (Archbold, 1981) [species] †Brachymetopus pseudometopina Gauri & Ramovs, 1964 [species] †Brachymetopus rhinorhachis Brezinski, 1992 [species] †Brachymetopus spiniferus (Kobayashi & Hamada, 1979) [species] †Brachymetopus strzeleckii M'Coy, 1847 [species] †Cheiropyge himalayensis Diener, 1897 [species] †Cheiropyge koizumii (Kobayashi & Hamada, 1982) [species] †Cyamella stensioei Owens, 1978 [species] †Hahnus maximowae (Hahn & Hahn, 1982) [species] †Oenonella paulula Fortey, 1980 [species] †Panarchaeogonus holmi (Warburg, 1925) [species] †Panarchaeogonus parvus Opik, 1937 [species] †Panarchaeogonus phlyzacius Owens, 1978 [species] †Panarchaeogonus trigoda (Warburg, 1925) [species] †Panarchaeogonus trigodus (Warburg, 1925) [species] †Radnoria carlsi Owens & Hammann, 1990 [species] †Radnoria guyi Pereira et al., 2015 [species] †Radnoria humillima Barrande, 1852 [species] †Radnoria syrphetodes Owens & Thomas, 1975 [species] †Radnoria triquetra Owens & Thomas, 1975 [species] †Scharyia angusta Pribyl, 1966 [species] †Scharyia brevispinosa Pribyl, 1967 [species] †Scharyia couviniana Osmolska, 1957 [species] †Scharyia heothina Owens, 1974 [species] †Scharyia micropyga (Hawle & Corda, 1847) [species] †Scharyia nympha Chlupac, 1971 [species] †Scharyia siceripotrix Owens, 1974 [species] †Scharyia tafilaltensis Alberti, 1970 [species] †Scharyia vesca Pribyl, 1966 [species] †Scharyia yolkini Pribyl, 1970 [species] †Rorringtoniidae [family] †Isbergia parvula Warburg, 1925 [species] †Isbergia planifrons Warburg, 1925 [species] †Isbergia virginica Cooper, 1953 [species] †Pseudobirmanites brachypyga (Maar & Nicholson, 1888) [species] †Pseudobirmanites communis Ju, 1981 [species] †Pseudobirmanites leiboensis Li, 1978 [species] †Pseudobirmanites suavis (Petrunina, 1975) [species] †Rorringtonia flabelliformis Whittard, 1966 [species] †Rorringtonia lenis Owens & Hammann, 1990 [species] †Rorringtonia scanica (Olin, 1906) [species] †Solariproetus prosthemesos Owens, 2004 [species] †Solariproetus shichengziensis Qu, 1986 [species] †Solariproetus triangularis Qu, 1986 [species] †Bathyuridae [family] †Acidiphorus brevispicatus Fortey, 1980 [species] †Acidiphorus brevus (Hintze, 1952) [species] †Acidiphorus brighti (Hintze, 1952) [species] †Acidiphorus broeggeri Strand, 1932 [species] †Acidiphorus ensifer Fortey & Droser, 1996 [species] †Acidiphorus hesperia (Ross & Barnes, 1967) [species] †Acidiphorus kindlei (Whittington, 1963) [species] †Acidiphorus ligo Fortey, 1980 [species] †Acidiphorus lineotuberculatus Fortey & Droser, 1999 [species] †Acidiphorus ludificatus Hintze, 1952 [species] †Acidiphorus moorei (Raymond, 1913) [species] †Acidiphorus plicolabeonus Young, 1973 [species] †Acidiphorus rostratus (Whittington, 1963) [species] †Acidiphorus spinifer Raymond, 1925 [species] †Acidiphorus unicornis Young, 1973 [species] †Acidiphorus wahwahensis (Hintze, 1952) [species] †Acidiphorus whittingtoni Brett & Westrop, 1996 [species] †Acidiphorus williamsi (Ross, 1951) [species] †Bathyurellus abruptus Billings, 1865 [species] †Bathyurellus arbucklensis Loch, 2007 [species] †Bathyurellus diclementsae Fortey & Bruton, 2013 [species] †Bathyurellus marginiatus Billings, 1865 [species] †Bathyurellus platypus Fortey, 1979 [species] †Bathyurellus pogonipensis Hintze, 1952 [species] †Bathyurellus teicherti Poulsen, 1937 [species] †Bathyurellus teretus Young, 1973 [species] †Bathyurina megalops Poulsen, 1937 [species] †Bathyurus acutus Raymond, 1913 [species] †Bathyurus angustus (Ross, 1970) [species] †Bathyurus esbataottinensis Ludvigsen, 1979 [species] †Bathyurus eskimoensis Twenhofel, 1938 [species] †Bathyurus extans (Hall, 1847) [species] †Bathyurus granulosus Ludvigsen, 1979 [species] †Bathyurus mackenziensis Tremblay & Westrop, 1991 [species] †Bathyurus margareti Tremblay & Westrop, 1991 [species] †Bathyurus nevadensis Ross & Barnes, 1967 [species] †Bathyurus platyparius Ludvigsen, 1979 [species] †Bathyurus sunbloodensis Tremblay & Westrop, 1991 [species] †Bathyurus superbus Raymond, 1910 [species] †Bathyurus ulu Ludvigsen, 1979 [species] †Bathyurus (Raymondites) clochensis Swisher et al., 2015 [species] †Bathyurus (Raymondites) ingalli (Raymond, 1913) [species] †Bathyurus (Raymondites) longispinus (Walcott, 1876) [species] †Bathyurus (Raymondites) missouriensis Swisher et al., 2015 [species] †Bathyurus (Raymondites) spiniger (Hall, 1847) [species] †Benthamaspis canadensis Dean, 1989 [species] †Benthamaspis conica Fortey, 1979 [species] †Benthamaspis diminutiva Hintze, 1952 [species] †Benthamaspis gibberula (Billings, 1865) [species] †Benthamaspis mediacrista (Cullison, 1944) [species] †Benthamaspis onomeris Loch, 2007 [species] †Benthamaspis problematica Poulsen, 1946 [species] †Benthamaspis rhochmotis Loch, 2007 [species] †Benthamaspis sera Fortey & Droser, 1999 [species] †Benthamaspis striata (Whitfield, 1897) [species] †Bolbocephalus convexus (Billings, 1865) [species] †Bolbocephalus ellesmerensis Adrain & Westrop, 2005 [species] †Bolbocephalus gunnari Fortey & Bruton, 2013 [species] †Bolbocephalus jeffersonensis Cullison, 1944 [species] †Bolbocephalus kindlei Boyce, 1989 [species] †Bolbocephalus myktos Loch, 2007 [species] †Bolbocephalus seelyi (Whitfield, 1889) [species] †Bolbocephalus stclairi Cullison, 1944 [species] †Bolbocephalus stitti Loch, 2007 [species] †Catochia glabra Fortey, 1979 [species] †Catochia hinlopensis Fortey & Bruton, 2013 [species] †Catochia ornata Fortey, 1979 [species] †Ceratopeltis bachensis Adrain & Westrop, 2005 [species] †Ceratopeltis forteyi Adrain & Westrop, 2005 [species] †Ceratopeltis latilimbata Poulsen, 1937 [species] †Chapmanopyge amplimarginiata (Billings, 1859) [species] †Chapmanopyge oklahomensis (Loch, 2007) [species] †Chapmanopyge sanddoelaensis Adrain & Westrop, 2005 [species] †Cullisonia producta (Cullison, 1944) [species] †Gelasinocephalus pustulosus Loch, 2007 [species] †Gelasinocephalus whittingtoni Loch, 2007 [species] †Grinnellaspis feildeni (Poulsen, 1946) [species] †Grinnellaspis newfoundlandensis Boyce, 1989 [species] †Harlandaspis elongata Fortey & Bruton, 2013 [species] †Harlandaspis inflata (Loch, 2007) [species] †Jeffersonia bridgei Heller, 1954 [species] †Jeffersonia exterminata Fortey & Bruton, 2013 [species] †Jeffersonia granosa Cullison, 1944 [species] †Jeffersonia jenni Cullison, 1944 [species] †Jeffersonia striagena Fortey & Bruton, 2013 [species] †Jeffersonia timon (Billings, 1865) [species] †Jeffersonia ulrichi Loch, 2007 [species] †Jeffersonia viator Fortey & Bruton, 2013 [species] †Licnocephala bicornuta Ross, 1951 [species] †Licnocephala brevicauda (Poulsen, 1937) [species] †Licnocephala cavigladius Hintze, 1952 [species] †Licnocephala ovata Ross, 1953 [species] †Licnocephala sanddoelaensis Adrain & Westrop, 2005 [species] †Licnocephala sminue Fortey & Peel, 1990 [species] †Lutesvillia bispinosa Cullison, 1944 [species] †Madaraspis magnifica Fortey & Droser, 1996 [species] †Peltabellia baumannensis Adrain & Westrop, 2005 [species] †Peltabellia elegans Fortey & Peel, 1990 [species] †Peltabellia glabra Fortey & Bruton, 2013 [species] †Peltabellia lata Zhou & Fortey, 1986 [species] †Peltabellia peltabella (Ross, 1951) [species] †Peltabellia sibirica (Maksimova, 1955) [species] †Petigurus cullisoni Loch, 2007 [species] †Petigurus cybele (Billings, 1859) [species] †Petigurus ellipticus (Cleland, 1900) [species] †Petigurus groenlandicus Poulsen, 1937 [species] †Petigurus inexpectatus Fortey & Droser, 1996 [species] †Petigurus nero (Billings, 1865) [species] †Psalikilopsis cuspicaudata Ross, 1953 [species] †Psalikilopsis cuspidicauda Ross, 1953 [species] †Psephosthenaspis ellipsepyga (Tremblay & Westrop, 1991) [species] †Psephosthenaspis glabrior Fortey & Droser, 1996 [species] †Psephosthenaspis microspinosa Fortey & Droser, 1996 [species] †Psephosthenaspis pseudobathyurus (Ross & Barnes, 1967) [species] †Pseudoolenoides acicaudus Hintze, 1952 [species] †Pseudoolenoides aspinosus Fortey & Droser, 1996 [species] †Pseudoolenoides carterensis Shaw, 1974 [species] †Pseudoolenoides derbyi Shaw, 1974 [species] †Pseudoolenoides dilectus Hintze, 1952 [species] †Punka akoura Loch, 2007 [species] †Punka caecata Fortey, 1980 [species] †Punka flabelliformis Fortey, 1979 [species] †Punka latissima Fortey & Bruton, 2013 [species] †Punka nitidus (Billings, 1865) [species] †Punka verecunda Loch, 2007 [species] †Ranasasus brevicephalus Cullison, 1944 [species] †Ranasasus colossus Loch, 2007 [species] †Ranasasus conicus Cullison, 1944 [species] †Speyeris hami Loch, 2007 [species] †Strigigenalis brevicaudata Boyce, 1989 [species] †Strigigenalis caudata (Billings, 1865) [species] †Strigigenalis crassimarginata (Cullison, 1944) [species] †Strigigenalis derbyi Loch, 2007 [species] †Strigigenalis implexa Loch, 2007 [species] †Strigigenalis insentis Loch, 2007 [species] †Strigigenalis knighti (Boyce, 1989) [species] †Strigigenalis stevensi (Boyce, 1989) [species] †Uromystrum affine (Poulsen, 1937) [species] †Uromystrum brevispinum (Raymond, 1905) [species] †Uromystrum drepanon Fortey & Bruton, 2013 [species] †Uromystrum minor (Raymond, 1905) [species] †Uromystrum patulum Whittington, 1963 [species] †Uromystrum validus (Billings, 1865) [species] †Dimeropygidae [family] †Bearriverops alsacharovi Adrain & Westrop, 2007 [species] †Bearriverops borderinnensis Adrain & Westrop, 2007 [species] †Bearriverops deltaensis Adrain & Westrop, 2007 [species] †Bearriverops ibexensis Adrain & Westrop, 2007 [species] †Bearriverops loganensis Adrain & Westrop, 2007 [species] †Chomatopyge canasi Chatterton et al., 1998 [species] †Chomatopyge falcata Whittington & Evitt, 1953 [species] †Chomatopyge marginifera Whittington & Evitt, 1953 [species] †Dimeropyge clintonensis Shaw, 1968 [species] †Dimeropyge speyeri Chatterton, 1994 [species] †Dimeropyge spinifera Whittington & Evitt, 1953 [species] †Dimeropyge tumidus (Bradley, 1930) [species] †Dimeropyge virginiensis Whittington & Evitt, 1953 [species] †Dimeropygiella blanda (Hintze, 1952) [species] †Dimeropygiella caudanodosa (Ross, 1951) [species] †Dimeropygiella fillmorensis Adrain et al., 2001 [species] †Dimeropygiella mccormicki Adrain et al., 2001 [species] †Dimeropygiella ovata (Hintze, 1952) [species] †Heckethornia alticapitis (Young, 1973) [species] †Heckethornia ballionae McAdams & Adrain, 2009 [species] †Heckethornia bowiei McAdams & Adrain, 2009 [species] †Heckethornia hyndeae McAdams & Adrain, 2009 [species] †Heckethornia morrisseyi McAdams & Adrain, 2009 [species] †Heckethornia numani McAdams & Adrain, 2009 [species] †Heckethornia smithi McAdams & Adrain, 2009 [species] †Ischyrophyma tuberculata Whittington, 1963 [species] †Ischyrophyma tumida Whittington, 1965 [species] †Ischyrotoma anataphra Fortey, 1979 [species] †Ischyrotoma borealis (Fortey, 1980) [species] †Ischyrotoma juabensis Adrain et al., 2001 [species] †Ischyrotoma parallela Boyce, 1989 [species] †Ischyrotoma sila Loch, 2007 [species] †Ischyrotoma stubblefieldi Ingham, 1986 [species] †Ischyrotoma twenhofeli Raymond, 1925 [species] †Ischyrotoma wahwahensis Adrain et al., 2001 [species] †Mesotaphraspis bockeliei Bruton & Owen, 1979 [species] †Mesotaphraspis inornata Whittington & Evitt, 1953 [species] †Mesotaphraspis parva Whittington & Evitt, 1953 [species] †Pseudohystricurus obesus Ross, 1951 [species] †Pseudohystricurus orbus Ross, 1953 [species] †Pseudohystricurus rotundus Ross, 1951 [species] †Toernquistia sanchezae (Chatterton et al., 1998) [species] †Tulepyge paucituberculata (Fortey, 1983) [species] †Tulepyge tulensis Adrain & Westrop, 2006 [species] †Holotrachelidae [family] †Holotrachelus punctillosus (Törnquist, 1884) [species] †Otarionidae [family] †Cyphaspis agayuara Chatterton et al., 2006 [species] †Cyphaspis eberhardiei Chatterton et al., 2006 [species] †Cyphaspis globosus Bradley, 1930 [species] †Cyphaspis hamidi Chatterton et al., 2006 [species] †Proetidae [family] †Analocaspis ursina Owens, 1970 [species] †Archegonus winterbergensis Hahn, 1965 [species] †Ascetopeltis bockeliei Owens, 1973 [species] †Ascetopeltis lepta Owens, 1973 [species] †Astroproetus berwynensis Whittington, 1966 [species] †Astroproetus pseudolatifrons (Reed, 1904) [species] †Bollandia persephone (Phillips, 1836) [species] †Carbonocoryphe amphiro Hahn et al., 1996 [species] †Carbonocoryphe depressa (Girty, 1926) [species] †Carbonocoryphe planucauda Brezinski, 1998 [species] †Carbonoproetus zeuxo [species] †Cyphoproetus comitilus Clarkson & Howells, 1981 [species] †Cyphoproetus depressa (Barrande, 1846) [species] †Cyphoproetus facetus Tripp, 1954 [species] †Cyphoproetus latiaxis Kobayashi & Hamada, 1986 [species] †Cyphoproetus pugionis Howells, 1982 [species] †Cyphoproetus svartoensis Owen, 1981 [species] †Cyrtoproetus cracoensis (Reed, 1899) [species] †Cyrtosymbole rectifrons Lerosey-Aubril & Feist, 2006 [species] †Decoroproetus asellus (Esmark, 1833) [species] †Decoroproetus bodae Owens, 1973 [species] †Decoroproetus brevifrons (Angelin, 1854) [species] †Decoroproetus campanulatus Owens, 1973 [species] †Decoroproetus decorus (Barrande, 1846) [species] †Decoroproetus evexus Owens, 1973 [species] †Decoroproetus farragatus Howells, 1982 [species] †Decoroproetus furubergensis Owens, 1970 [species] †Decoroproetus granulatus Kobayashi & Hamada, 1974 [species] †Decoroproetus gyratus Owens, 1970 [species] †Decoroproetus papyraceus (Törnquist, 1884) [species] †Decoroproetus solenotus Owens, 1970 [species] †Engelomorrisia queenslandica (Engel & Morris, 1996) [species] †Eremiproetus agellus Owens, 1973 [species] †Griffithidella alternata (Girty, 1926) [species] †Griffithidella doris (Hall, 1860) [species] †Griffithides convexicaudatus Mitchell, 1918 [species] †Griffithides pustulosus Snider, 1915 [species] †Griffithides (Griffithides) majus Chamberlain, 1977 [species] †Griffithides (Griffithides) megalopos Chamberlain, 1977 [species] †Kaskia rarus Whittington, 1954 [species] †Keidelia macrophthalma Harrington & Leanza, 1957 [species] †Liobole galaxaura Hahn et al., 1996 [species] †Liobole glabroides (Richter & Richter, 1949) [species] †Liobole liebsteinensis Hahn et al., 1996 [species] †Metaphillipsia bufo (Meek & Worthen, 1870) [species] †Monodechenella macrocephala (Hall, 1861) [species] †Neogriffithides almensis Tumanskaya, 1935 [species] †Neogriffithides gemmellaroi Tumanskaya, 1935 [species] †Neogriffithides imbricatus Kobayashi & Hamada, 1980 [species] †Neogriffithides ismailensis Tumanskaya, 1935 [species] †Neogriffithides pecencis Hahn et al., 1990 [species] †Neogriffithides pulchella (Gemmellaro, 1890) [species] †Neoproetus akagii Kobayashi & Hamada, 1984 [species] †Neoproetus borealis Kobayashi, 1987 [species] †Neoproetus indicus Tesch, 1923 [species] †Neoproetus verrucosus (Gemmellaro, 1890) [species] †Neoproetus (Siciliproetus) sicula (Gemmellaro, 1890) [species] †Neoproetus (Triproetus) altasulcus Brezinski, 1992 [species] †Neoproetus (Triproetus) angustus Brezinski, 1992 [species] †Neoproetus (Triproetus) bonbon Fortey & Heward, 2015 [species] †Neoproetus (Triproetus) spitsbergensis (Osmólska, 1968) [species] †Neoproetus (Triproetus) subovalis (Kobayashi & Hamada, 1979) [species] †Neoproetus (Triproetus) tumidus Brezinski, 1992 [species] †Ogmocnemis irregularis Kielan, 1960 [species] †Ogmocnemis jaanussoni Owens, 2004 [species] †Paladin helmsensis Whittington, 1954 [species] †Paladin iwaizakiensis Kobayashi & Hamada, 1984 [species] †Paladin morrowensis (Mather, 1915) [species] †Paladin mucronatus (Girty, 1910) [species] †Paladin opisthops Kobayashi & Hamada, 1979 [species] †Paladin veeravurusi Kobayashi & Hamada, 1979 [species] †Palpebralia initialis Feist & McNamara, 2013 [species] †Palpebralia pustulata Feist & McNamara, 2013 [species] †Palpebralina minor Feist & McNamara, 2013 [species] †Palpebralina ocellifer Feist & McNamara, 2013 [species] †Palpebralina pseudopalpebralis Feist & McNamara, 2013 [species] †Paraproetus brevifrons Angelin, 1854 [species] †Paraproetus girvanensis (Nicholson & Etheridge, 1879) [species] †Parvigena parvigena (Warburg, 1925) [species] †Parvigena putealis Owens, 2004 [species] †Phaseolops bobowensi Fortey & Bruton, 2013 [species] †Phaseolops sepositus Whittington, 1963 [species] †Phillipsia aequalis Scupin, 1900 [species] †Phillipsia aliensis Tumanskaya, 1935 [species] †Phillipsia dubia (Etheridge, 1872) [species] †Phillipsia eichwaldi (Fischer, 1825) [species] †Phillipsia grandis Etheridge, 1892 [species] †Phillipsia kojensis Tumanskaya, 1935 [species] †Phillipsia najensis Tumanskaya, 1935 [species] †Podoliproetus mirdani Johnson & Fortey, 2012 [species] †Prantlia biloba Kobayashi & Hamada, 1974 [species] †Proetus (Bohemiproetus) magnicerviculus Kobayashi & Hamada, 1974 [species] †Proetus (Coniproetus) irroratus Chatterton et al., 1979 [species] †Proetus (Crassiproetus) crassimarginatus (Hall, 1843) [species] †Proetus (Crassiproetus) folliceps (Hall & Clarke, 1888) [species] †Proetus (Gerastos) subcarinatus Kobayashi & Hamada, 1974 [species] †Proetus (Gerastos) sugiharensis Kobayashi & Hamada, 1974 [species] †Proetus (Gerastos) vietnamensis Kobayashi & Hamada, 1974 [species] †Proetus ainae Warburg, 1925 [species] †Proetus alaricus Billings, 1860 [species] †Proetus baltensis Tumanskaya, 1935 [species] †Proetus blandi Cooper, 1953 [species] †Proetus canalis Bradley, 1930 [species] †Proetus chambliensis Foerste, 1914 [species] †Proetus clelandi Raymond, 1905 [species] †Proetus cuvieri Steininger, 1831 [species] †Proetus fardenensis Begg, 1950 [species] †Proetus interjectus (Reed, 1935) [species] †Proetus scoticus (Reed, 1941) [species] †Proetus simus Lane, 1984 [species] †Proetus subtriangularis Begg, 1950 [species] †Proetus (Proetus) subovalis Kobayashi & Hamada, 1974 [species] †Proetus (Pudoproetus) chappelensis (Hessler, 1963) [species] †Proetus (Pudoproetus) hahni Chamberlain, 1977 [species] †Rhenocynproetus catervus Van Viersen, 2006 [species] †Rudybole adorfensis Richter, 1913 [species] †Rudybole brecciae (Richter, 1913) [species] †Rudybole depressa Feist & McNamara, 2013 [species] †Sevillia trinucleata (Herrick, 1887) [species] †Spatulata spatulata (Woodward, 1902) [species] †Thigriffides roundyi (Girty, 1926) [species] †Timsaloproetus dibbanus Gibb & Chatterton, 2007 [species] †Timsaloproetus elguerrouji Gibb & Chatterton, 2007 [species] †Timsaloproetus haasi (Alberti, 1971) [species] †Warburgella (Warburgella) capetos Howells, 1982 [species] †Waribole idyia Hahn et al., 1996 [species] †Xenocybe micrommata Owens, 1973 [species] †Yuanjia wildungensis (Richter, 1913) [species] †Phillipsiidae [family] †Acanthophillipsia abnormis Yuan et al., 1992 [species] †Acanthophillipsia abrota Yuan et al., 1992 [species] †Acanthophillipsia densigranulata (Kobayashi & Hamada, 1984) [species] †Acanthophillipsia felicitae Fortey & Heward, 2015 [species] †Acanthophillipsia granulosa Yuan et al., 1992 [species] †Acanthophillipsia guiyangensis Yuan et al., 1992 [species] †Acropyge brevica Yin, 1978 [species] †Acropyge encrinuroides (Weber, 1944) [species] †Acropyge multisegmenta Qian, 1977 [species] †Acropyge weggeni Hahn & Hahn, 1981 [species] †Ameura missouriensis (Shumard, 1858) [species] †Ameura trigonopyge (Osmólska, 1968) [species] †Ampulliglabella kojimai Kobayashi & Hamada, 1984 [species] †Ampulliglabella rotunda Kobayashi & Hamada, 1984 [species] †Anisopyge cooperi Brezinski, 1992 [species] †Anisopyge hyperbola Chamberlain, 1972 [species] †Anisopyge inornata Girty, 1909 [species] †Anisopyge perannulata (Shumard, 1858) [species] †Bedicella cicatricosa Hahn et al., 1990 [species] †Bedicella zephyr (Hahn & Hahn, 1987) [species] †Cummingella boikoi Mychko, 2012 [species] †Cummingella (Cummingella) slovenica Hahn et al., 1990 [species] †Delaria antiqua (Girty, 1909) [species] †Delaria brevis Brezinski, 1992 [species] †Delaria chinatiensis Brezinski, 1992 [species] †Delaria granti Brezinski, 1992 [species] †Delaria sevilloidia (Chamberlain, 1970) [species] †Delaria snowi Cisne, 1971 [species] †Delaria westexensis Brezinski, 1992 [species] †Ditomopyge amorni Kobayashi & Hamada, 1979 [species] †Ditomopyge bjornensis Ormiston, 1973 [species] †Ditomopyge decurtata (Gheyselinck, 1937) [species] †Ditomopyge dereimsi Arellano, 1983 [species] †Ditomopyge fatmii Grant, 1966 [species] †Ditomopyge granulata (Weber, 1933) [species] †Ditomopyge kumpani Weber, 1933 [species] †Ditomopyge meridionalis Teichert, 1944 [species] †Ditomopyge ovalis Gauri, 1965 [species] †Ditomopyge scitula (Meek & Worthen, 1865) [species] †Ditomopyge scitulus (Meek & Worthen, 1865) [species] †Ditomopyge whitei (Pabian & Fagerstrom, 1972) [species] †Ditomopyge yampupatensis (Arellano, 1983) [species] †Doublatia inflata Wass & Banks, 1971 [species] †Doublatia matheri Engel & Laurie, 1978 [species] †Doublatia pyriforme Wass & Banks, 1971 [species] †Endops yanagisawai (Endo & Matsumoto, 1962) [species] †Hentigia argops Haas et al., 1980 [species] †Hentigia bulbops Haas et al., 1980 [species] †Hentigia ornata Fortey & Heward, 2015 [species] †Hentigia planops Haas et al., 1980 [species] †Iranaspidion elephas Fortey & Heward, 2015 [species] †Jimbokranion subovalis Kobayashi & Hamada, 1984 [species] †Kathwaia capitorosa Grant, 1966 [species] †Kathwaia girtyi (Tumanskaya, 1935) [species] †Microphillipsia parvula (Beyrich, 1865) [species] †Microphillipsia tetraptera Ruggieri, 1959 [species] †Nipponaspis miosilus Chamberlain, 1977 [species] †Nipponaspis takaizumii Koizumi, 1972 [species] †Novoameura mckeei (Cisne, 1971) [species] †Novoameura vitrumons Brezinski, 1992 [species] †Paraphillipsia aglypta Chamberlain, 1977 [species] †Paraphillipsia inflata Kobayashi & Hamada, 1979 [species] †Paraphillipsia karpinskyi Tumanskaya, 1935 [species] †Paraphillipsia levigata Kobayashi & Hamada, 1980 [species] †Paraphillipsia middlemissi (Diener, 1897) [species] †Paraphillipsia taurica Tumanskaya, 1935 [species] †Paraphillipsia vnweberi Tumanskaya, 1935 [species] †Permoproetus beschui Tumanskaya, 1935 [species] †Permoproetus gortanii Tumanskaya, 1935 [species] †Permoproetus postcarbonarius (Gemmellaro, 1890) [species] †Permoproetus salomonensis (Gemmellaro, 1890) [species] †Permoproetus teschi Tumanskaya, 1935 [species] †Pseudophillipsia (Carniphillipsia) caruancensis Hahn et al., 1990 [species] †Pseudophillipsia (Carniphillipsia) cooperationis Haas et al., 1980 [species] †Pseudophillipsia (Carniphillipsia) dizluensis Ameri et al., 2017 [species] †Pseudophillipsia (Carniphillipsia) intermedia (Kobayashi & Hamada, 1980) [species] †Pseudophillipsia (Carniphillipsia) kemerensis Lerosey-Aubril & Angiolini, 2009 [species] †Pseudophillipsia (Carniphillipsia) loricata Haas et al., 1980 [species] †Pseudophillipsia (Carniphillipsia) paffenholzi (Weber, 1944) [species] †Pseudophillipsia (Carniphillipsia) rotunda Hahn et al., 1990 [species] †Pseudophillipsia (Carniphillipsia) sagittalis (Kobayashi & Hamada, 1978) [species] †Pseudophillipsia (Carniphillipsia) savensis Hahn & Hahn, 1977 [species] †Pseudophillipsia (Nodiphillipsia) binodosa Kobayashi & Hamada, 1984 [species] †Pseudophillipsia (Nodiphillipsia) hanaokensis Kobayashi & Hamada, 1984 [species] †Pseudophillipsia (Nodiphillipsia) ozawai Kobayashi & Hamada, 1984 [species] †Pseudophillipsia (Nodiphillipsia) sasakii Kobayashi & Hamada, 1984 [species] †Pseudophillipsia (Nodiphillipsia) simplex Kobayashi & Hamada, 1984 [species] †Pseudophillipsia (Nodiphillipsia) spatulifera (Kobayashi & Hamada, 1980) [species] †Pseudophillipsia anshunensis Qian, 1977 [species] †Pseudophillipsia armenica Weber, 1944 [species] †Pseudophillipsia azzouzi Termier & Termier, 1974 [species] †Pseudophillipsia borissiaki Tumanskaya, 1935 [species] †Pseudophillipsia caucasica Weber, 1944 [species] †Pseudophillipsia chongqingensis Lu, 1974 [species] †Pseudophillipsia elegans Gemmellaro, 1890 [species] †Pseudophillipsia gemmellaroi Greco, 1935 [species] †Pseudophillipsia heshanensis Qian, 1977 [species] †Pseudophillipsia huishuiensis Yin, 1978 [species] †Pseudophillipsia hungarica Schreter, 1948 [species] †Pseudophillipsia kuzuensis Kobayashi & Hamada, 1984 [species] †Pseudophillipsia lipara Goldring, 1957 [species] †Pseudophillipsia mengshanensis Lin, 1982 [species] †Pseudophillipsia mustafensis Tumanskaya, 1935 [species] †Pseudophillipsia obtusicauda (Kayser, 1883) [species] †Pseudophillipsia oehlerti (Gemmellaro, 1890) [species] †Pseudophillipsia ogivalis Gauri, 1965 [species] †Pseudophillipsia parvizii Lerosey-Aubril, 2012 [species] †Pseudophillipsia pyriformis Qian, 1977 [species] †Pseudophillipsia qinglongensis Qian, 1977 [species] †Pseudophillipsia rakoveci Gauri, 1965 [species] †Pseudophillipsia reggorcakaensis Qian, 1981 [species] †Pseudophillipsia semicircularis Gauri, 1965 [species] †Pseudophillipsia shanggaoensis Zhang, 1982 [species] †Pseudophillipsia solida Weber, 1944 [species] †Pseudophillipsia sosioensis (Gemmellaro, 1890) [species] †Pseudophillipsia steatopyga Goldring, 1957 [species] †Pseudophillipsia subcircularis Qian, 1977 [species] †Pseudophillipsia sumatrensis (Roemer, 1880) [species] †Pseudophillipsia tongluensis Ju, 1982 [species] †Pseudophillipsia triangulata Ju, 1982 [species] †Pseudophillipsia wuweiensis Zhang, 1982 [species] †Pseudophillipsia (Pseudophillipsia) akasakensis Kobayashi & Hamada, 1984 [species] †Pseudophillipsia (Pseudophillipsia) catena Kobayashi & Hamada, 1984 [species] †Pseudophillipsia (Pseudophillipsia) kiriuensis Kobayashi & Hamada, 1984 [species] †Pseudophillipsia (Pseudophillipsia) kuzuensis Kobayashi & Hamada, 1984 [species] †Simulopaladin simulator (Haas et al., 1980) [species] †Simulopaladin tridentifer Fortey & Heward, 2015 [species] †Thaiaspis (Thaiaspella) aliger Kobayashi & Hamada, 1978 [species] †Thaiaspis euryrachis Kobayashi & Hamada, 1979 [species] †Timoraspis breviceps (Gheyselinck, 1937) [species] †Vidria contendens Cisne, 1971 [species] †Vidria vespa Weller, 1944 [species] †Weania goldringi Campbell & Engel, 1963 [species] †Scharyiidae [family] †Lasarchopyge benedettoi Chatterton et al., 1998 [species] †Lasarchopyge correae Chatterton et al., 1998 [species] †Telephinidae [family] †Carolinites bulbosus Kobayashi, 1940 [species] †Carolinites ekphymosus Fortey, 1975 [species] †Carolinites genacinaca Ross, 1951 [species] †Carolinites ichangensis Lu, 1975 [species] †Carolinites indentus Ross & Barnes, 1967 [species] †Carolinites killaryensis (Stubblefield, 1950) [species] †Carolinites rugosus Fortey, 1975 [species] †Carolinites sibiricus Chugaeva, 1964 [species] †Goniophrys prima Ross, 1951 [species] †Ompheter priscus Laurie & Shergold, 1996 [species] †Oopsites hibernicus (Reed, 1909) [species] †Oopsites squamosus Fortey, 1975 [species] †Opipeuter emanuelensis Legg, 1976 [species] †Phorocephala pinguimitra (Chatterton & Ludvigsen, 1976) [species] †Phorocephala setoni (Shaw, 1968) [species] †Phorocephala shizipuensis Yin, 1978 [species] †Phorocephala typa Lu, 1965 [species] †Telephina americanus (Billings, 1865) [species] †Telephina angulata Yi, 1957 [species] †Telephina fractus (Barrande, 1852) [species] †Telephina salteri Reed, 1914 [species] †Telephina wegelini Angelin, 1854 [species] †Telephina (Telephina) americana Billings, 1865 [species] †Telephina (Telephina) angulata Yi, 1957 [species] †Telephina (Telephina) bicuspis (Angelin, 1854) [species] †Telephina (Telephina) bilunata Ulrich, 1930 [species] †Telephina (Telephina) bipunctata Ulrich, 1930 [species] †Telephina (Telephina) buttsi Ulrich, 1930 [species] †Telephina (Telephina) chinensis Yi, 1957 [species] †Telephina (Telephina) fracta Barrande, 1852 [species] †Telephina (Telephina) furnesensis Nikolaisen, 1963 [species] †Telephina (Telephina) gelasinosa Ulrich, 1926 [species] †Telephina (Telephina) hibernica Reed, 1909 [species] †Telephina (Telephina) hircina Ulrich, 1930 [species] †Telephina (Telephina) impuctata Ulrich, 1930 [species] †Telephina (Telephina) intermedia Thorslund, 1935 [species] †Telephina (Telephina) lata Ulrich, 1930 [species] †Telephina (Telephina) mobergi Hadding, 1913 [species] †Telephina (Telephina) mysticensis Ulrich, 1930 [species] †Telephina (Telephina) norvegica Nikolaisen, 1963 [species] †Telephina (Telephina) pacifica Kobayashi, 1955 [species] †Telephina (Telephina) prattensis Ulrich, 1930 [species] †Telephina (Telephina) pustulata Ulrich, 1930 [species] †Telephina (Telephina) reedi Ulrich, 1930 [species] †Telephina (Telephina) simulator Ulrich, 1930 [species] †Telephina (Telephina) sinuata Ulrich, 1930 [species] †Telephina (Telephina) skjesethi Nikolaisen, 1963 [species] †Telephina (Telephina) spinifera Ulrich, 1930 [species] †Telephina (Telephina) sulcata Nikolaisen, 1963 [species] †Telephina (Telephina) tellicoensis Ulrich, 1930 [species] †Telephina (Telephina) transversa Ulrich, 1930 [species] †Telephina (Telephina) troedssoni Raymond, 1925 [species] †Telephina (Telephina) ulrichi Thorslund, 1935 [species] †Telephina (Telephina) vesca Nikolaisen, 1963 [species] †Telephina (Telephina) viriosa Nikolaisen, 1963 [species] †Telephina (Telephina) wegelini Angelin, 1854 [species] †Tropidocoryphidae [family] †Diademaproetus mohamedi Chatterton et al., 2006 [species] †Galbertianus hollardi (Alberti, 1964) [species] †Lepidoproetus (Lepidoproetus) splendens Johnson & Fortey, 2012 [species] †Pteroparia extrema Feist & McNamara, 2013 [species] †Pteroparia ziegleri Feist, 1994 [species] †Stenoblepharum astinil Edgecombe et al., 1997 [species] †Stenoblepharum kullsbergense (Warburg, 1925) [species] †Stenoblepharum norvegicum Owens, 1973 [species] †Stenoblepharum pentagonoides (Warburg, 1925) [species] †Stenoblepharum strasburgense (Cooper, 1953) [species] †Stenoblepharum striatum Owens, 1973 [species] †Stenoblepharum warburgae (Pribyl, 1964) [species] †Tropidocoryphe amuri Chatterton et al., 2006 [species] †Proparia [order] †Burlingiidae [family] †Burlingia hectori Walcott, 1908 [species] †Burlingia ovata Zhang et al., 1980 [species] †Schmalenseeia sinensis Yang, 1978 [species] †Pseudoclelandia cornupsittaca Ross, 1951 [species] †Pseudoclelandia fluxafissura Ross, 1951 [species] †Pseudoclelandia lenisora Ross, 1951 [species] †Ptychopariida [order] †Acrocephalitidae [family] †Acrocephalella granulosa Rozova, 1963 [species] †Acrocephalites borealicus (Lazarenko, 1960) [species] †Acrocephalites lataegenae Wilson, 1949 [species] †Acrocephalites militans Lermontova, 1940 [species] †Acrocephalites redivivus Rozova, 1964 [species] †Acrocephalites reductus Rozova, 1964 [species] †Acrocephalites trifossatus Mason, 1935 [species] †Diceratocephalina miranda Maksimova, 1962 [species] †Mansiella mansica Rozova, 1968 [species] †Pseudacrocephalaspina extrema Ergaliev, 1980 [species] †Pseudacrocephalaspina strobiliformis Ergaliev, 1980 [species] †Alokistocaridae [family] †Alokistocarella spencei Resser, 1939 [species] †Alokistocare alta Fritz, 1968 [species] †Alokistocare idahoense Resser, 1939 [species] †Alokistocare laticaudum Resser, 1939 [species] †Alokistocare linnarssoni (Walcott, 1884) [species] †Alokistocare nactum Resser, 1938 [species] †Alokistocare natale Resser, 1938 [species] †Alokistocare noduliferum Resser, 1938 [species] †Alokistocare normale Resser, 1938 [species] †Alokistocare notatum Resser, 1938 [species] †Alokistocare nothum Resser, 1938 [species] †Alokistocare punctatum Resser, 1939 [species] †Alokistocare septum Resser, 1939 [species] †Alokistocare spencense Resser, 1939 [species] †Altiocculus striatus (Nan & Chang, 1980) [species] †Amecephalus piochensis (Walcott, 1886) [species] †Amecephalus strangulatus Mason, 1935 [species] †Bythicheilus alveatum Resser, 1939 [species] †Bythicheilus typicum Resser, 1939 [species] †Chancia angusta Resser, 1939 [species] †Chancia rasettii Shaw, 1957 [species] †Danzhaiaspis daopingensis Zhao & Huang, 1981 [species] †Danzhaiaspis quadratus Zhang et al., 1980 [species] †Ehmaniella casta Chien & Zhou, 1974 [species] †Ehmaniella coriacea Resser, 1939 [species] †Ehmaniella dotis Resser, 1939 [species] †Ehmaniella idahoensis Resser, 1939 [species] †Ehmaniella lanata Resser, 1939 [species] †Ehmaniella similis Zhang et al., 1980 [species] †Ehmaniella spencei Resser, 1939 [species] †Elrathia idahoensis Resser, 1938 [species] †Elrathia kingi (Meek, 1870) [species] †Elrathia longiceps Resser, 1938 [species] †Elrathia rara Resser, 1939 [species] †Elrathia sampsoni Resser, 1938 [species] †Elrathia spencei Resser, 1939 [species] †Elrathiella kailiensis Zhou, 1974 [species] †Kistocare campbellensis Fritz, 1968 [species] †Schopfaspis granulosus Palmer & Gatehouse, 1972 [species] †Shabanovia submissa Doweld, 2013 [species] †Antagmidae [family] †Antagmus arenosus Fritz, 1968 [species] †Antagmus dapingensis Zhou, 1974 [species] †Antagmus ducketti Fritz, 1991 [species] †Antagmus truncatus Fritz, 1972 [species] †Bilimbataia conica Yang et al., 1993 [species] †Bilimbataia sichuanensis Yang et al., 1993 [species] †Crassifimbra columnaris Yang et al., 1993 [species] †Erzishania latigenata Zhang et al., 1980 [species] †Longshania longshanensis Zhang et al., 1980 [species] †Mantoushania subconica Lu et al., 1988 [species] †Onchocephalina yichunensis Duan & An, 2001 [species] †Onchocephalus palupus Fritz, 1968 [species] †Onchocephalus sanwanensis Zhang et al., 1980 [species] †Onchocephalus veridicus Zhang et al., 1980 [species] †Xiangqianaspis hunanensis Zhang et al., 1980 [species] †Xiaomajiella planimarginis Zhang et al., 1980 [species] †Asaphiscidae [family] †Blainia gregaria Walcott, 1916 [species] †Kaninia quadrata Lazarenko, 1960 [species] †Lioparia theano (Walcott, 1905) [species] †Paraorlovia prima Chernysheva, 1956 [species] †Bifodina longifrons Robison & Pantoja-Alor, 1968 [species] †Bigotinidae [family] †Demuma nicklesi (Hupe, 1952) [species] †Bolaspididae [family] †Bolaspidaspis puta Rozova, 1964 [species] †Catillicephalidae [family] †Buttsia globosa Lu & Lin, 1987 [species] †Buttsia inexpectata Fortey, 1980 [species] †Buttsina ignota Rozova, 1968 [species] †Calculites microps (Rasetti, 1944) [species] †Calculites stevensi Fortey, 1983 [species] †Distazeris hunanensis Peng, 1987 [species] †Distazeris (Paradistazeris) hubeiensis Zhang et al., 1980 [species] †Distazeris (Paradistazeris) sichuanensis Zhang et al., 1980 [species] †Lajishanaspis subsphaericus Chu, 1979 [species] †Onchonotellus abnormis Ivshin, 1956 [species] †Onchonotellus fenghuangensis Duan et al., 1999 [species] †Onchonotellus kuruktagensis (Zhang, 1981) [species] †Onchonotellus perlatus Ivshin, 1962 [species] †Onchonotellus privus Rozova, 1968 [species] †Onchonotellus tchecurensis Lazarenko, 1966 [species] †Onchonotellus vigilans Lu, 1964 [species] †Peracheilus monile Fortey, 1983 [species] †Peracheilus oryx Fortey, 1983 [species] †Tuojiangella tuojiangensis Duan et al., 1999 [species] †Cedariidae [family] †Bonneterrina saamica Rozova, 1964 [species] †Bonneterrina sachaica Rozova, 1964 [species] †Carinamala longispina Palmer, 1962 [species] †Cedaria brevifrons Palmer, 1962 [species] †Jimachongia lata Yuan & Yin, 1998 [species] †Changshaniidae [family] †Changshania conica Sun, 1924 [species] †Changshania equalis Sun, 1935 [species] †Conocoryphidae [family] †Bailiella baileyi (Hartt, 1868) [species] †Bailiella lantenoisi (Mansuy, 1916) [species] †Bailiella lata Zhang et al., 1980 [species] †Conocoryphe micros Hall, 1863 [species] †Holocephalina chinensis Yang et al., 1993 [species] †Holocephalina trapezia Yang et al., 1993 [species] †Novocatharia ferralsensis (Courtessole, 1967) [species] †Conokephalinidae [family] †Buitella buitensis Lazarenko, 1964 [species] †Catuniella lauta Lazarenko, 1960 [species] †Suludella davnii Palmer & Gatehouse, 1972 [species] †Suludella spinosa Palmer & Gatehouse, 1972 [species] †Crepicephalidae [family] †Bagongshania huainanensis Lin, 1983 [species] †Coosia alethes (Walcott, 1916) [species] †Coosia longocula Palmer, 1962 [species] †Coosia pernamagna Wilson, 1954 [species] †Coosina ariston (Walcott, 1916) [species] †Coosina kindlei Westrop, 1992 [species] †Coosinoides anhuiensis Lu & Zhu, 1980 [species] †Coosinoides parthianus Dean, 2006 [species] †Crepicephalina convexus (Walcott, 1911) [species] †Crepicephalina pergranosa Resser & Endo, 1937 [species] †Crepicephalina ruichengensis Zhang et al., 1980 [species] †Crepicephalus comus Walcott, 1916 [species] †Crepicephalus thoosa Walcott, 1916 [species] †Hsuchuangia angustilimbata (Meng, 1977) [species] †Hsuchuangia elongata Qiu, 1983 [species] †Hsuchuangia hsuchuangensis (Lu, 1953) [species] †Hsuchuangia huoshanensis Zhang & Wang, 1985 [species] †Hsuchuangia longiceps Lu & Zhu, 2001 [species] †Hsuchuangia luliangshanensis Zhang & Wang, 1985 [species] †Idioura granosa Zhang et al., 1980 [species] †Idioura laevigata Zhang et al., 1980 [species] †Sinocoosella typica Yuan & Yin, 1998 [species] †Zaozhuangaspis pertenus Lin, 1984 [species] †Zaozhuangaspis shandongensis Lin, 1984 [species] †Zaozhuangaspis similis Lin, 1984 [species] †Zaozhuangaspis trapezoidalis Lin, 1984 [species] †Dokimocephalidae [family] †Apachia butlerensis (Frederickson, 1949) [species] †Apachia prima Palmer, 1965 [species] †Burnetiella alta Resser, 1942 [species] †Dellea punctata Palmer, 1965 [species] †Dellea wilbernsensis Wilson, 1949 [species] †Glyptometopsis marginata Rasetti, 1961 [species] †Glyptometopsis tumida Rasetti, 1961 [species] †Iddingsia anatina Resser, 1942 [species] †Iddingsia relativa Palmer, 1968 [species] †Jingxiania beigongliensis Chien, 1974 [species] †Jingxiania tangcunensis Chien, 1974 [species] †Jingxiania transversa Chien, 1974 [species] †Jingxiania zhuangliensis Chien, 1974 [species] †Lorrettina shenjiawanensis Peng, 1984 [species] †Pseudosaratogia abnormis Palmer, 1960 [species] †Pseudosaratogia leptogranulata Palmer, 1960 [species] †Wuhuia angustatus Ergaliev, 1980 [species] †Wuhuia longa Peng, 1992 [species] †Ellipsocephalidae [family] †Bhargavia prakritika Peng et al., 2009 [species] †Ellipsocephalus gripi Kautsky, 1945 [species] †Geyerorodes schmitti (Geyer, 1990) [species] †Glabrella pitans Palmer & Gatehouse, 1972 [species] †Glabrella ventrosa Lermontova, 1940 [species] †Hamatolenus (Hamatolenus) vincenti Geyer & Landing, 2004 [species] †Kingaspidoides alberti Geyer, 2017 [species] †Kingaspidoides frankenwaldensis (Wurm, 1925) [species] †Kingaspidoides meieri Geyer, 2017 [species] †Kingaspidoides usitata (Geyer, 1990) [species] †Kingaspis avalonensis Geyer & Landing, 2001 [species] †Latikingaspis alatus (Hupé, 1954) [species] †Ornamentaspis angustigena Geyer, 2014 [species] †Ornamentaspis crassilimbata Geyer, 1990 [species] †Paraprotolenella subcylindrica Zhu & Jiang, 1981 [species] †Protolenella conica Qian & Yao, 1974 [species] †Protolenella lata Zhou, 1974 [species] †Protolenus pustulatus (Cobbold, 1910) [species] †Protolenus (Protolenus) densigranulatus Geyer, 1990 [species] †Pseudoprotolenella subcylindrica Zhu & Lin, 1983 [species] †Pseudoprotolenella xinjiangensis Zhu & Lin, 1983 [species] †Strenuaeva inflata Ahlberg & Bergström, 1978 [species] †Strenuella calceola Cobbold, 1931 [species] †Strenuella cobboldi (Richter, 1919) [species] †Strenuella platycephala (Cobbold, 1910) [species] †Yeshanaspis subconicus Zhu & Jiang, 1981 [species] †Ellipsocephaloides curtus (Whitfield, 1878) [species] †Ellipsocephaloides pepinensis Grant, 1962 [species] †Elviniidae [family] †Chariocephalus whitfieldi Hall, 1863 [species] †Drumaspis sabulosa Grant, 1962 [species] †Drumaspis tanycodia Grant, 1962 [species] †Dunderbergia bigranulosa Palmer, 1960 [species] †Dunderbergia brevispina Palmer, 1965 [species] †Dunderbergia calculosa Palmer, 1965 [species] †Dunderbergia polybothra Palmer, 1960 [species] †Dunderbergia simplex Rasetti, 1961 [species] †Dunderbergia variagranula Palmer, 1954 [species] †Dytremacephalus asperaxis Palmer, 1965 [species] †Elburgia intermedia Palmer, 1965 [species] †Elburgia quinnensis (Resser, 1942) [species] †Elvinaspis explicatus Ergaliev, 2001 [species] †Elviniella laevis Palmer, 1960 [species] †Irvingella norilica Lazarenko, 1968 [species] †Irvingella perfecta Chernysheva, 1968 [species] †Irvingella taitzuhoensis Lu, 1957 [species] †Irvingella transversa Palmer, 1965 [species] †Irvingella tropica Opik, 1963 [species] †Maladioides qinlingensis Yang et al., 1993 [species] †Prismenaspis magnus Ergaliev, 1980 [species] †Prismenaspis trisulcatus Ergaliev, 1980 [species] †Estaingiidae [family] †Eomalungia conica Li, 1980 [species] †Eomalungia emeiensis Lee, 1978 [species] †Eomalungia intermedia Li, 1980 [species] †Eomalungia zhangshanensis Li, 1980 [species] †Ichangia ichangensis Chang, 1965 [species] †Paraichangia jiangsuensis Zhu & Jiang, 1981 [species] †Paraichangia spinosa Zhu & Jiang, 1981 [species] †Pararaia bunyerooensis Bengtson et al., 1990 [species] †Pararaia carinata Zhang et al., 1980 [species] †Pseudichangia damiaoensis (Chang, 1964) [species] †Shifangia yefanggouensis Yang et al., 1993 [species] †Sichuanolenus nanjiangensis Zhang et al., 1980 [species] †Zhuxiella hubeiensis Zhang et al., 1980 [species] †Eulomidae [family] †Acrocephalaspina insueta Ergaliev, 1980 [species] †Acrocephalaspina longa Ergaliev, 1980 [species] †Dolgeuloma abunda Rozova, 1963 [species] †Dolgeuloma dolganensis Rozova, 1963 [species] †Karataspis chinensis Peng, 1992 [species] †Ketyna glabra Rozova, 1963 [species] †Ketyna karatauensis Lisogor, 1977 [species] †Ketyna ketiensis Rozova, 1963 [species] †Ketyna striata Peng, 1992 [species] †Ketyna zhejiangensis Lu & Lin, 1983 [species] †Loparella loparica Rozova, 1968 [species] †Lopeuloma loparensis Rozova, 1968 [species] †Pareuloma brachymetopa Rasetti, 1954 [species] †Pareuloma impunctata Rasetti, 1954 [species] †Pareuloma spinosa Palmer, 1968 [species] †Pareuloma taoyuanense Peng, 1992 [species] †Probilacunaspis nasalis Peng, 1992 [species] †Probilacunaspis prolatus Ergaliev, 1980 [species] †Probilacunaspis similis Ergaliev, 1980 [species] †Proteuloma debila Ergaliev, 1980 [species] †Proteuloma huochengensis (Zhang, 1981) [species] †Proteuloma subquadrata (Lu & Qian, 1977) [species] †Pseudoacrocephalites ilgaensis Maksimova, 1962 [species] †Stigmatoa yangziensis Yang, 1978 [species] †Faciura entsyensis Rozova, 1968 [species] †Faciura premiera Rozova, 1963 [species] †Huaiaspis huainanensis Li & Peng, 2006 [species] †Isocolidae [family] †Cyphoniscus socialis Salter, 1853 [species] †Holdenia typa Cooper, 1953 [species] †Isocolus dysdercus Whittington, 1963 [species] †Isocolus sjogreni Angelin, 1854 [species] †Pradesia martyi Thoral, 1935 [species] †Thomondia globosa Harper, 1942 [species] †Ityophoridae [family] †Frognaspis stoermeri Nikolaisen, 1965 [species] †Ityophorus undulatus Warburg, 1925 [species] †Kingstoniidae [family] †Blountia virginica Rasetti, 1961 [species] †Clelandia aspina Ross & Barnes, 1967 [species] †Clelandia bispina Ross & Barnes, 1967 [species] †Clelandia utahensis Ross, 1951 [species] †Kingstonia neimonggolensis Zhang & Zhou, 1993 [species] †Komaspidella laevis Rasetti, 1961 [species] †Komaspidella lata Rasetti, 1961 [species] †Komaspidella occidentalis Palmer, 1962 [species] †Maryvillia arion Walcott, 1916 [species] †Maryvillia omega Lochman & Hu, 1962 [species] †Saonella saonica Rozova, 1968 [species] †Wanwanaspis pygidion Shergold, 1975 [species] †Wanwanaspis wannanensis Qiu, 1984 [species] †Lisaniidae [family] †Aojia latifronsa Qian & Zhou, 1984 [species] †Aojia wanyuanensis Yang et al., 1993 [species] †Dazhuia dazhuensis Yang et al., 1993 [species] †Eoshengia constricta Zhang, 1981 [species] †Eoshengia dongqinlingia Yang et al., 1993 [species] †Eoshengia gaoqiaogouensis Yang et al., 1993 [species] †Eoshengia paratenuis Yang et al., 1993 [species] †Eoshengia parva Yang et al., 1993 [species] †Eoshengia rigida Yang et al., 1993 [species] †Eoshengia shorteglabella Yang et al., 1993 [species] †Eoshengia spinosa Yang, 1978 [species] †Eoshengia tenuis Zhang, 1981 [species] †Extrania trigona Yang et al., 1993 [species] †Himalisania sudani (Jell & Hughes, 1997) [species] †Lisania paratungjenensis Yang, 1978 [species] †Lisaniella elongataformis Ergaliev, 1980 [species] †Lisaniella elongata Chang, 1963 [species] †Metalisania subquadrata Ju, 1983 [species] †Quandraspis shengwanensis Yang et al., 1993 [species] †Shengia quadrata Hsiang, 1963 [species] †Shengia trapezia Peng, 1992 [species] †Xichuania magnipalpebra Yang et al., 1993 [species] †Xichuania xiuzigouensis Yang et al., 1993 [species] †Llanoaspididae [family] †Deiracephalus unicornis Palmer, 1962 [species] †Llanoaspis convexifrons Rasetti, 1961 [species] †Sacha perexigua Rozova, 1964 [species] †Tagenarella eniseica Lazarenko, 1968 [species] †Lonchocephalidae [family] †Aethia rectangula Qian & Zhou, 1984 [species] †Caulaspina convexa Rozova, 1963 [species] †Glaphyraspis ovata Rasetti, 1961 [species] †Glaphyraspis parva (Walcott, 1899) [species] †Glaphyraspis parviformis Ergaliev, 1980 [species] †Kuraspis acricula Rozova, 1963 [species] †Kuraspis antiqua Rozova, 1964 [species] †Kuraspis similis Chernysheva, 1960 [species] †Monosulcatina laeve Rozova, 1963 [species] †Neoglaphyraspis nitida Yuan & Yin, 1998 [species] †Neoglaphyraspis trapezoidalis Yuan & Yin, 1998 [species] †Neograciella graciensis (Rozova, 1963) [species] †Nordia lepida Rozova, 1968 [species] †Quebecaspis conifrons Rasetti, 1961 [species] †Quebecaspis marylandica Rasetti, 1961 [species] †Raashellina paula Rozova, 1963 [species] †Terranovella brevis Palmer, 1965 [species] †Terranovella dorsalis (Hall, 1863) [species] †Lorenzellidae [family] †Inouyops abnormis Zhang et al., 1980 [species] †Inouyops latilimbatus Zhang & Yuan, 1981 [species] †Inouyops longispinus Zhang et al., 1980 [species] †Inouyops titiana (Walcott, 1905) [species] †Jinnania ruichengensis Zhang et al., 1980 [species] †Lorenzella convexa Endo & Resser, 1937 [species] †Lorenzella kushanensis Chu, 1959 [species] †Lorenzella subcylindrica Chu, 1959 [species] †Lorenzella wutaiensis Chang, 1965 [species] †Porilorenzella intermedia Zhang et al., 1980 [species] †Ptyctolorenzella rugosa Zhang et al., 1980 [species] †Ptyctolorenzella xuzhuangensis Lu & Zhu, 2001 [species] †Luaspididae [family] †Luaspides brevica Zhang & Yuan, 1981 [species] †Mapaniidae [family] †Metanomocarella rectangula Zhang, 1959 [species] †Metanomocarella tumida (Resser & Endo, 1937) [species] †Paramapania qinlingensis Yang et al., 1993 [species] †Pseudomapania cylindrica Yuan & Yin, 1998 [species] †Pseudomapania truncata Yuan & Yin, 1998 [species] †Menomoniidae [family] †Paramenomonia conica Chu, 1959 [species] †Nambeetella embolion Fortey & Shergold, 1984 [species] †Norwoodiidae [family] †Hardyoides damaensis Duan, 2004 [species] †Hardyoides mimicus Palmer, 1965 [species] †Hardyoides sinensis Peng, 1992 [species] †Xenocheilos minutum Wilson, 1949 [species] †Olenidae [family] †Acerocarina glaber Harrington, 1938 [species] †Aciculolenus peculiaris Palmer, 1965 [species] †Anaximander clavatus Fortey, 1974 [species] †Angelina hyeronimi (Kayser, 1876) [species] †Angelina kayseri Harrington & Leanza, 1957 [species] †Angelina punctolineata Kobayashi, 1937 [species] †Angelina spinosa Robison & Pantoja-Alor, 1968 [species] †Balnibarbi ceryx Fortey, 1974 [species] †Balnibarbi erugata Fortey, 1974 [species] †Balnibarbi pulvurea Fortey, 1974 [species] †Balnibarbi scimitar Fortey, 1974 [species] †Balnibarbi sombrero Fortey, 1974 [species] †Balnibarbi tholia Fortey, 1974 [species] †Beltella ulrichi Harrington, 1938 [species] †Bienvillia grandis Robison & Pantoja-Alor, 1968 [species] †Bienvillia papulosus (Fortey, 1974) [species] †Bienvillia stikta Fortey, 1974 [species] †Bienvillia tetragonalis (Harrington, 1938) [species] †Chekiangaspis chekiangensis Lu, 1961 [species] †Chekiangaspis karatauensis Ergaliev, 1980 [species] †Chekiangaspis subquadrata Peng, 1992 [species] †Cloacaspis dejecta Fortey, 1974 [species] †Cloacaspis ekphymosa Fortey, 1974 [species] †Cloacaspis senilis Fortey, 1974 [species] †Cloacaspis tesselata Fortey & Droser, 1999 [species] †Huangshiaspis transversus Liu, 1977 [species] †Hypermecaspis armata Harrington & Leanza, 1957 [species] †Hypermecaspis brevifrons Fortey, 1974 [species] †Hypermecaspis bulmani Harrington & Leanza, 1957 [species] †Hypermecaspis inermis Harrington & Leanza, 1957 [species] †Hypermecaspis inflecta Harrington & Leanza, 1957 [species] †Hypermecaspis kolouros Ross, 1970 [species] †Hypermecaspis latigena Fortey, 1974 [species] †Hypermecaspis venulosa Fortey, 1974 [species] †Jujuyaspis keideli Kobayashi, 1936 [species] †Leiobienvillia laevigata Rasetti, 1954 [species] †Leiobienvillia terranovica (Rasetti, 1954) [species] †Leptoplastides mariana (Hoek, 1912) [species] †Leurostega aphelix Robison & Pantoja-Alor, 1968 [species] †Neolenus inflatus Walcott, 1908 [species] †Neolenus intermedius Walcott, 1908 [species] †Neolenus superbus Walcott, 1908 [species] †Olenus austriacus Yang, 1977 [species] †Olenus granulatus (Palmer, 1960) [species] †Olenus quadrisulcatus Palmer, 1965 [species] †Olenus sinensis Lu, 1964 [species] †Parabolina (Neoparabolina) frequens (Barrande, 1868) [species] †Parabolina argentina (Kayser, 1876) [species] †Parabolina kobayashii Harrington & Leanza, 1957 [species] †Parabolina monstruosa Pokrovskaya, 1966 [species] †Parabolina pheidolopyge Harrington, 1938 [species] †Parabolinella argentinensis Kobayashi, 1936 [species] †Parabolinella coelatifrons Harrington & Leanza, 1957 [species] †Parabolinella hecuba (Walcott, 1924) [species] †Parabolinella limitis Brögger, 1882 [species] †Parabolinella prolata Robison & Pantoja-Alor, 1968 [species] †Parabolinella triarthroides Harrington, 1938 [species] †Parabolinella tumifrons Robison & Pantoja-Alor, 1968 [species] †Parabolinella variabilis Robison & Pantoja-Alor, 1968 [species] †Parabolinina fortunata (Lazarenko, 1966) [species] †Parabolinites bisulcatus Ergaliev, 1980 [species] †Peltocare norvegicum (Moberg & Möller, 1898) [species] †Plesioparabolina proparia Harrington & Leanza, 1942 [species] †Plicatolina changshanensis Lu & Lin, 1980 [species] †Plicatolina kindlei Shaw, 1951 [species] †Plicatolina scalpta Harrington & Leanza, 1957 [species] †Plicatolinella ocula Robison & Pantoja-Alor, 1968 [species] †Porterfieldia caecigenus (Raymond, 1920) [species] †Porterfieldia convergens (Whittard, 1961) [species] †Porterfieldia fisheri (Billings, 1865) [species] †Porterfieldia jachalensis Harrington & Leanza, 1957 [species] †Porterfieldia parapunctata (Fortey, 1974) [species] †Porterfieldia sinensis (Chang & Fan, 1965) [species] †Porterfieldia thor (Fortey, 1974) [species] †Protopeltura mesembria Harrington & Leanza, 1957 [species] †Psilocara comma Fortey, 1974 [species] †Psilocara patagiatum Fortey, 1974 [species] †Rhodonaspis longula Whitehouse, 1939 [species] †Saltaspis steinmanni Harrington & Leanza, 1952 [species] †Sphaerophthalmus alatus (Boeck, 1838) [species] †Sphaerophthalmus angustus Westergard, 1922 [species] †Sphaerophthalmus arcus Høyberget & Bruton, 2012 [species] †Sphaerophthalmus drytonensis Cobbold, 1934 [species] †Sphaerophthalmus flagellifer (Angelin, 1854) [species] †Sphaerophthalmus modestus (Henningsmoen, 1957) [species] †Sphaerophthalmus postcurrens (Westergard, 1944) [species] †Svalbardites hamus Fortey, 1974 [species] †Svalbardites hebaxis Fortey, 1974 [species] †Triangulopyge humilis (Phillips, 1848) [species] †Triangulopyge majusculus (Linnarsson, 1880) [species] †Triarthrus beckii Green, 1832 [species] †Triarthrus becki Green, 1832 [species] †Triarthrus billingsi Barrande, 1872 [species] †Triarthrus canadensis Smith, 1861 [species] †Triarthrus eatoni (Hall, 1838) [species] †Triarthrus glaber Billings, 1859 [species] †Triarthrus huguesensis Foerste, 1924 [species] †Triarthrus humilis Hadding, 1913 [species] †Triarthrus linnarssoni Thorslund, 1940 [species] †Triarthrus parchaensis Harrington & Leanza, 1957 [species] †Triarthrus rectifrons Harrington, 1938 [species] †Triarthrus rougensis Parks, 1921 [species] †Triarthrus shinetonensis Raw, 1908 [species] †Triarthrus sichuansis Lu & Chang, 1974 [species] †Triarthrus skutensis Thorslund, 1940 [species] †Triarthrus spinosus Billings, 1857 [species] †Triarthrus turkestanicus Veber, 1948 [species] †Westergaardites pelturaeformis Troedsson, 1937 [species] †Wujiajiania expansa Lu & Lin, 1980 [species] †Wujiajiania tachenensis (Lu, 1964) [species] †Palaeolenidae [family] †Enixus enigmaticus (Chernysheva, 1956) [species] †Enixus juvenis (Chernysheva, 1956) [species] †Megapalaeolenus (Latipalaeolenus) houdapoensis Guo & An, 1982 [species] †Megapalaeolenus (Latipalaeolenus) latilimbatus Guo & An, 1982 [species] †Megapalaeolenus deprati (Mansuy, 1912) [species] †Megapalaeolenus fengyangensis (Chu, 1962) [species] †Megapalaeolenus longispinus Zhang et al., 1980 [species] †Megapalaeolenus quadratus Yang et al., 1993 [species] †Palaeolenus douvillei Mansuy, 1912 [species] †Palaeolenus lantenoisi Mansuy, 1912 [species] †Palaeolenus tingi Lu, 1941 [species] †Paleo_Diceratocephalidae [family] †Ajrikina elongata Ergaliev, 1980 [species] †Ajrikina hunanensis (Peng, 1987) [species] †Ajrikina miranda (Lin et al., 1983) [species] †Ajrikina wannanensis (Qiu, 1983) [species] †Cyclolorenzella acalle (Walcott, 1905) [species] †Cyclolorenzella caijiapingensis Yang, 1978 [species] †Cyclolorenzella distincta Zhang, 1985 [species] †Cyclolorenzella hebeiensis Zhu & Wittke, 1989 [species] †Cyclolorenzella longispina Zhu & Wittke, 1989 [species] †Cyclolorenzella parabola (Lu, 1957) [species] †Cyclolorenzella uniforma Zhu & Wittke, 1989 [species] †Cyclolorenzella yentaiensis (Chu, 1959) [species] †Diceratocephalus armatus Lu, 1954 [species] †Fenghuangella coniformis (Ergaliev, 1980) [species] †Fenghuangella laochatianensis Yang, 1977 [species] †Fenghuangella lata Qian & Zhou, 1984 [species] †Fenghuangella magnispina Lin et al., 1983 [species] †Fenghuangella striata Qian & Zhou, 1984 [species] †Fenghuangella subtriangularis Lin et al., 1983 [species] †Trigocephalus trigoformis Duan et al., 1999 [species] †Papyriaspididae [family] †Pianaspis attenuata (Lermontova & Chernysheva, 1950) [species] †Pianaspis dictyodroma Yang et al., 1993 [species] †Pianaspis insuetus Lu & Zhu, 1980 [species] †Pianaspis sinensis (Yang, 1978) [species] †Wangcunia wangcunensis Peng et al., 1995 [species] †Phylacteridae [family] †Aphelotoxon acuminata (Palmer, 1960) [species] †Aphelotoxon granulosus Palmer, 1965 [species] †Aphelotoxon limbata Palmer, 1965 [species] †Aphelotoxon marginata Palmer, 1965 [species] †Aphelotoxon punctata Palmer, 1965 [species] †Aphelotoxon spinosus Palmer, 1965 [species] †Drabia curtoccipita Wilson, 1951 [species] †Platyharpes trippi Whittington, 1950 [species] †Plethopeltidae [family] †Koldinia minor Kobayashi, 1943 [species] †Koldinia odelli Peng et al., 2009 [species] †Koldiniella convexa Lazarenko, 1960 [species] †Kulyumbopeltis kulyumbensis (Rozova, 1963) [species] †Plethopeltides magnus Maksimova, 1962 [species] †Plethopeltis dubius (Rasetti, 1944) [species] †Poriplethopeltis sinensis Yuan & Yin, 1998 [species] †Samgonus nitens (Opik, 1967) [species] †Stenopilus hirtus Rozova, 1968 [species] †Proasaphiscidae [family] †Atilayus orientalis (Ogienko, 1969) [species] †Daopingia daopingensis Lee, 1978 [species] †Daopingia elongatus Zhao & Huang, 1981 [species] †Daopingia guizhouensis Zhao & Huang, 1981 [species] †Gangdeeria angusta Zhang et al., 1980 [species] †Gangdeeria neimengguensis Zhang et al., 1980 [species] †Guankouia longa (Meng, 1977) [species] †Hadraspis monanensis Zhang et al., 1980 [species] †Heyelingella shuiyuensis Zhang et al., 1980 [species] †Heyelingella zhongtiaoshanensis Zhang et al., 1980 [species] †Honania lata Li, 1965 [species] †Honania panda Zhang et al., 1980 [species] †Honania pansa Zhang et al., 1980 [species] †Hundwarella memor (Reed, 1910) [species] †Iranoleesia butes (Walcott, 1905) [species] †Jiangsuia cylindrica Qian & Zhou, 1984 [species] †Jiangsuia typica Lin et al., 1983 [species] †Jiubaspis brevica Zhang et al., 1980 [species] †Jiubaspis longus Zhang et al., 1980 [species] †Jixianella jixianensis (Zhang et al., 1995) [species] †Kutsingocephalus kutsingensis Li & Wang, 1963 [species] †Kutsingocephalus yankongensis Zhang et al., 1980 [species] †Lioparella typica Zhang & Yuan, 1981 [species] †Luonanocephalus luoheensis Yang et al., 1993 [species] †Manchuriella macar (Walcott, 1911) [species] †Manchuriella suyangensis Zhang et al., 1980 [species] †Manchuriella tenuilabrosa Resser & Endo, 1937 [species] †Memmatella tubercula Zhang et al., 1995 [species] †Miaobanpoia angustilimbata (Zhang et al., 1980) [species] †Plectrocrania minor Zhang et al., 1980 [species] †Proasaphiscina mantoushanensis Lu & Zhu, 2001 [species] †Proasaphiscina monanensis Zhang et al., 1980 [species] †Proasaphiscina quadrata Zhang et al., 1980 [species] †Proasaphiscina taosigouensis Zhang & Yuan, 1981 [species] †Proasaphiscus (Honanaspis) angustigenatus Zhang et al., 1980 [species] †Proasaphiscus (Honanaspis) honanensis Chang, 1959 [species] †Proasaphiscus (Honanaspis) lui Chang, 1959 [species] †Proasaphiscus (Honanaspis) microps Zhang et al., 1980 [species] †Proasaphiscus (Honanaspis) transversus Zhang et al., 1980 [species] †Proasaphiscus granulus Zhang et al., 1995 [species] †Proasaphiscus quadratus Zhang et al., 1980 [species] †Proasaphiscus simoni Peng et al., 2009 [species] †Proasaphiscus yabei Resser & Endo, 1935 [species] †Shanxiella rara Zhang et al., 1980 [species] †Shanxiella venusta Zhang et al., 1980 [species] †Sudanomocarina sinindica Peng et al., 2009 [species] †Szeaspis centronatus (Resser & Endo, 1937) [species] †Wolfartius abundans (Wolfart, 1974) [species] †Yujinia angustilimbata Zhang et al., 1980 [species] †Yujinia latilimbata Zhang et al., 1995 [species] †Yujinia ludianensis (Meng, 1977) [species] †Yujinia magna Zhang et al., 1980 [species] †Yujinia shanxiensis Zhang et al., 1980 [species] †Zhongtiaoshanaspis minus Zhang et al., 1980 [species] †Zhongtiaoshanaspis rara Zhang et al., 1980 [species] †Zhongtiaoshanaspis ruichengensis Zhang et al., 1980 [species] †Zhongtiaoshanaspis similis Zhang & Yuan, 1981 [species] †Pseudatops viola (Woodward, 1888) [species] †Ptychopariidae [family] †Achlysopsis hemitora Fritz, 1968 [species] †Achlysopsis liokata Fritz, 1968 [species] †Altikolia kurshabica Pour & Popov, 2009 [species] †Bathyholcus gaspensis Rasetti, 1961 [species] †Bathyholcus sulcatus Rasetti, 1961 [species] †Braintreella rogersi (Walcott, 1884) [species] †Caborcella clinolimbata Fritz, 1968 [species] †Cathayanella granulosa Yuan & Yin, 1998 [species] †Chengshanaspis conica Yuan et al., 1997 [species] †Douposiella himalaica (Reed, 1910) [species] †Elrathina offula Resser, 1939 [species] †Eokaotaia laoyingshanensis Yuan & Li, 1999 [species] †Eoptychoparia benxiensis Guo & An, 1982 [species] †Eoptychoparia jinshaensis Zhou, 1974 [species] †Eoptychoparia nangaoensis Zhang et al., 1980 [species] †Eoptychoparia tafilaltensis Geyer, 2015 [species] †Eosoptychoparia conica Zhang et al., 1980 [species] †Eosoptychoparia intermedia Zhang et al., 1980 [species] †Gunnia smithi Peng et al., 2009 [species] †Illtydaspis aphylla Fritz, 1991 [species] †Illtydaspis ornata Fritz, 1991 [species] †Illtydaspis quartetensis Fritz, 1991 [species] †Jangudaspis princeps Ogienko, 1956 [species] †Jiagouia jiagouensis Qiu, 1983 [species] †Jialaopsis latus Qian & Zhou, 1974 [species] †Jianchangia nanshanensis Guo & An, 1982 [species] †Jiumenia spinosa Zhang et al., 1980 [species] †Jiumenia typica Zhang et al., 1980 [species] †Kaotaia gedongensis (Yuan & Zhao, 1994) [species] †Kaotaia globosa Chang & Zhou, 1974 [species] †Kaotaia longa Zhang et al., 1980 [species] †Kaotaia magna (Lu, 1945) [species] †Kaotaia prachina Peng et al., 2009 [species] †Kaotaia qinkouensis (Zhou, 1974) [species] †Kunmingaspis qiannanensis Zhou, 1974 [species] †Kunmingaspis stracheyi (Reed, 1910) [species] †Kunmingaspis yunnanensis Chang, 1964 [species] †Laminurus insuetus Repina, 1964 [species] †Laoyingshania triangularis Yuan & Li, 1999 [species] †Meitania similis Zhang et al., 1980 [species] †Meitania suni (Lu, 1945) [species] †Mexicella mexicana Lochman, 1948 [species] †Mikaparia milena Kordule, 2006 [species] †Monanocephalus latus Zhang et al., 1995 [species] †Monanocephalus liquani Peng et al., 2009 [species] †Monanocephalus maopoensis (Reed, 1910) [species] †Monanocephalus zhongtiaoshanensis Zhang et al., 1980 [species] †Nangaoia (Gedongaspis) granulosa (Yuan et al., 1997) [species] †Nangaoia (Gedongaspis) oblonga (Yuan et al., 1997) [species] †Nangaoia megaceps Zhou, 1974 [species] †Nangaops brevicus Zhang et al., 1980 [species] †Nangaops danzhaiensis (Zhou, 1974) [species] †Nangaops elongatus Zhang et al., 1980 [species] †Nangaops nangaoensis Zhang et al., 1980 [species] †Neoblairella crassimarginata (Rasetti, 1965) [species] †Neoblairella triangularis Rasetti, 1965 [species] †Neoregina opipara (Egorova, 1967) [species] †Onchocephalites permingeati (Termier & Termier, 1950) [species] †Pachyaspis (Danzhaina) denzhouensis Yuan et al., 1997 [species] †Pachyaspis (Danzhaina) lilia Zhang et al., 1980 [species] †Pachyaspis (Danzhaina) longispina Yuan et al., 1997 [species] †Pachyaspis benxiensis Guo & An, 1982 [species] †Pachyaspis gallagari Fritz, 1968 [species] †Pachyaspis longa Fritz, 1968 [species] †Palmerara granosa (Resser, 1939) [species] †Paraantagmus (Balangcunaspis) subcylindricus (Yuan et al., 1997) [species] †Paraantagmus (Balangcunaspis) transversus (Yuan et al., 1997) [species] †Paramecephalus defossus (Reed, 1910) [species] †Paramecephalus elongatus Yang et al., 1993 [species] †Paramecephalus meitanensis (Lu, 1945) [species] †Paramecephalus sinicus (Zhou, 1974) [species] †Paraperiomma huangnipoensis Zhang et al., 1980 [species] †Paraperiomma nodosa Yang et al., 1993 [species] †Parashuiyuella sinensis Yuan et al., 1997 [species] †Parashuiyuella subcylindrica (Yuan et al., 1997) [species] †Paraziboaspis angustilimbata Yuan & Li, 1999 [species] †Paraziboaspis houmengensis (Qiu, 1983) [species] †Paraziboaspis intermedia Yuan & Li, 1999 [species] †Paraziboaspis rara Yuan & Li, 1999 [species] †Paraziboaspis zhaishanensis (Qiu, 1983) [species] †Piaziella rara Fritz, 1972 [species] †Pingluaspis minor Zhang & Wang, 1986 [species] †Plesiamecephalus conicus Yuan & Li, 1999 [species] †Poulsenella latensis Rozova, 1963 [species] †Poulsenia decipiens Zhang et al., 1980 [species] †Probowmania (Mufushania) nankingensis (Lin, 1965) [species] †Probowmania (Mufushania) transversa Yang et al., 1993 [species] †Probowmania balangensis Yuan et al., 1997 [species] †Probowmania bhatti Peng et al., 2009 [species] †Probowmania divergens Yuan & Li, 1999 [species] †Probowmania huainanensis Yuan & Li, 1999 [species] †Probowmania quadrata Yuan & Li, 1999 [species] †Probowmania similis Yuan & Li, 1999 [species] †Probowmaniella jiawangensis Chang, 1963 [species] †Probowmaniella jixianensis Zhang et al., 1995 [species] †Probowmaniella lata Zhang et al., 1980 [species] †Probowmaniella renhuaiensis Zhou, 1974 [species] †Probowmanops elongata Ju, 1983 [species] †Probowmanops transversus Ju, 1983 [species] †Proliostracus ampliatus Fritz, 1991 [species] †Proliostracus annosus Fritz, 1972 [species] †Proliostracus contractus Fritz, 1972 [species] †Proliostracus depressus Fritz, 1972 [species] †Proliostracus latus Fritz, 1972 [species] †Psilostracus banpoyangensis Zhang et al., 1995 [species] †Psilostracus carinatus Lu et al., 1988 [species] †Psilostracus changqingensis Lu et al., 1988 [species] †Psilostracus impar (Walcott, 1905) [species] †Psilostracus latus Lu et al., 1988 [species] †Psilostracus mantoensis (Walcott, 1905) [species] †Psilostracus maozhuangensis Lu et al., 1988 [species] †Psilostracus shuiyuensis Zhang et al., 1980 [species] †Psilostracus xiaoyuhougouensis Guo & An, 1982 [species] †Ptychoparella minuta Yang et al., 1993 [species] †Ptychoparella usualis Chien & Zhou, 1974 [species] †Ptychoparia anderseni Henningsmoen, 1952 [species] †Ptychoparia annio (Cobbold, 1910) [species] †Ptychoparia attleborensis (Shaler & Foerste, 1888) [species] †Ptychoparia dubinka Kordule, 2006 [species] †Ptychoparia striata Whitfield, 1878 [species] †Ptychoparia striatus (Emmrich, 1839) [species] †Ptychoparia tuberosa Feniak, 1952 [species] †Ptychoparioides chlupaci Kordule, 2006 [species] †Ptychoparioides henkli Kordule, 2006 [species] †Qiaotouaspis qiaotouensis Guo & An, 1982 [species] †Qiaotouaspis shandongensis Lu et al., 1988 [species] †Ruichengella ruichengensis Zhang et al., 1980 [species] †Ruichengella triangularis Zhang et al., 1980 [species] †Sanwania prima Yuan et al., 1997 [species] †Schistometopus typicalis Resser, 1938 [species] †Shantungaspis aclis (Walcott, 1905) [species] †Shantungaspis orientalis (Endo & Resser, 1937) [species] †Shilengshuia conica Yuan & Zhao, 2002 [species] †Shilengshuia contracta Zhang et al., 1980 [species] †Shilengshuia jiubaensis Zhang et al., 1980 [species] †Shilengshuia lata Zhang et al., 1980 [species] †Shuiyuella triangularis Zhang et al., 1980 [species] †Sinoptychoparia huannipoensis Zhang et al., 1980 [species] †Spencia plena Resser, 1939 [species] †Spencia quadrata Fritz, 1968 [species] †Spencia typicalis Resser, 1939 [species] †Suluktella mambetovi Pour & Popov, 2009 [species] †Syspacephalus cadyi Shaw, 1957 [species] †Syspacephalus vapidus Fritz, 1972 [species] †Syspacephalus werneckensis Fritz, 1991 [species] †Townleyella rara Yuan & Yin, 1998 [species] †Townleyella similis Yuan & Yin, 1998 [species] †Trigonyangaspis hujiaensis (Yang et al., 1993) [species] †Tukalandaspis egens Lazarenko, 1968 [species] †Wanhuaia granulosa Yuan & Li, 1999 [species] †Wanhuaia latilimbata Yuan & Li, 1999 [species] †Weijiaspis elongata Qiu, 1983 [species] †Weijiaspis maozhuangensis Lu et al., 1988 [species] †Wuhaina henanensis Zhang et al., 1995 [species] †Wuhaina longispina (Zhang et al., 1995) [species] †Wuhaina lubrica Zhang & Yuan, 1981 [species] †Xilingxia elongata Zhu, 1987 [species] †Xilingxia ichangensis (Chang, 1964) [species] †Xingrenaspis brevicus Zhang et al., 1980 [species] †Xingrenaspis curvus (Zhou, 1974) [species] †Xingrenaspis hoboi (Resser & Endo, 1937) [species] †Xingrenaspis jialaoensis Zhang et al., 1980 [species] †Xingrenaspis parthiva Peng et al., 2009 [species] †Xingrenaspis quadratus Zhang et al., 1980 [species] †Xingrenaspis rectangularis Zhang et al., 1980 [species] †Xingrenaspis shyamalae Peng et al., 2009 [species] †Xingrenaspis xingrenensis Zhang et al., 1980 [species] †Yaojiayuella carinata (Zhang & Wang, 1985) [species] †Yaojiayuella convexolimbata Lu et al., 1988 [species] †Yaojiayuella diversa Zhang et al., 1980 [species] †Yaojiayuella granosa (Walcott, 1911) [species] †Yaojiayuella jinnanensis Zhang et al., 1980 [species] †Yaojiayuella liaoningensis Guo & An, 1982 [species] †Yaojiayuella ocellata Zhang et al., 1980 [species] †Yaojiayuella poshanensis Zhang et al., 1980 [species] †Yaojiayuella zhangxiaensis Lu et al., 1988 [species] †Ziboaspidella latilimbata Lu et al., 1988 [species] †Ziboaspis hostilis (Reed, 1910) [species] †Ziboaspis ruichengensis Zhang et al., 1980 [species] †Ptychoparioidea [superfamily] †Cambroproteus lemdadensis Geyer, 2015 [species] †Inouyiidae [family] †Catinouyia typica Zhang & Yuan, 1981 [species] †Inouyia capax (Walcott, 1906) [species] †Parainouyia fakelingensis (Meng, 1977) [species] †Parainouyia lata Zhang et al., 1980 [species] †Parainouyia prompta Zhang & Yuan, 1981 [species] †Parajialaopsis globus Zhang et al., 1980 [species] †Pseudinouyia punctata Zhang et al., 1995 [species] †Pseudinouyia transversa Zhang et al., 1995 [species] †Wuaniidae [family] †Houmaia taitzuensis (Endo, 1937) [species] †Jixianaspis lubricus Zhang et al., 1995 [species] †Megagraulos coreanicus Kobayashi, 1935 [species] †Megagraulos dengfengensis Zhang et al., 1995 [species] †Megagraulos liaotungensis (Endo, 1944) [species] †Megagraulos obscura (Walcott, 1906) [species] †Rencunia trinodosa (Meng, 1977) [species] †Ruichengaspis mirabilis Zhang et al., 1980 [species] †Ruichengaspis neimengguensis Zhang & Yuan, 1981 [species] †Ruichengaspis regularis Zhang et al., 1980 [species] †Wuania elongata Zhang et al., 1980 [species] †Wuania luna Zhang et al., 1980 [species] †Wuania trigona Yang et al., 1993 [species] †Wuania venusta Zhang & Yuan, 1981 [species] †Wuanoides situla Zhang & Yuan, 1981 [species] †Wuhushania cylindrica Zhang & Yuan, 1981 [species] †Shumardiidae [family] †Akoldinioidia dydimacantha Peng, 1992 [species] †Akoldinioidia sulcatus (Robison & Pantoja-Alor, 1968) [species] †Akoldinioidia trapezoidalis (Zhang, 1983) [species] †Koldinioidia orientalis (Mansuy, 1916) [species] †Koldinioidia pustulosa Qiu, 1984 [species] †Koldinioidia typicalis Kobayashi, 1931 [species] †Leioshumardia minima Whittington, 1965 [species] †Shumardia (Conophrys) nericiensis (Wiman, 1905) [species] †Shumardia (Conophrys) salopiensis (Callaway, 1877) [species] †Shumardia acuticaudata Fortey, 1980 [species] †Shumardia alata Robison & Pantoja-Alor, 1968 [species] †Shumardia ctenata Robison & Pantoja-Alor, 1968 [species] †Shumardia erquensis Kobayashi, 1937 [species] †Shumardia exopthalmus Ross & Barnes, 1967 [species] †Shumardia extensa (Weir, 1959) [species] †Shumardia granulosa Billings, 1862 [species] †Shumardia lacrimosa Dean, 1973 [species] †Shumardia minaretta Fortey, 1980 [species] †Shumardia minutula Harrington, 1938 [species] †Shumardia phalloides Fortey, 1980 [species] †Shumardia sagittula Whittington, 1965 [species] †Shumardia tarimuensis Zhang, 1981 [species] †Shumardia (Shumardia) angulata Laurie & Shergold, 1996 [species] †Shumardoella bohemica (Marek, 1964) [species] †Tarimella bituberculata Zhang, 1979 [species] †Solenopleuracea [superfamily] †Agraulidae [family] †Agraulos difformis (Angelin, 1851) [species] †Agraulos quadrangularis Whitfield, 1884 [species] †Agraulos selcupicus Rozova, 1964 [species] †Agraulos transversus Yang et al., 1993 [species] †Agraulos woosteri (Whitfield, 1878) [species] †Benxiaspis benxiensis Guo & An, 1982 [species] †Chittidilla nanjiangensis Zhang et al., 1980 [species] †Chittidilla oblonga Zhang et al., 1980 [species] †Chittidilla similis Zhang et al., 1980 [species] †Chittidilla yunnanensis Zhang et al., 1980 [species] †Chittidilla (Diandongaspidella) diandongensis (Zhang et al., 1980) [species] †Chittidilla (Diandongaspidella) guizhouensis Yuan et al., 1997 [species] †Metagraulos dolon (Walcott, 1905) [species] †Metagraulos truncatus Zhang & Yuan, 1981 [species] †Parachittidilla obscura Zhang et al., 1980 [species] †Parachittidilla xiaolinghouensis Zhang et al., 1980 [species] †Paragraulos convexus Yuan & Li, 1999 [species] †Plesiagraulos tienshihfuensis (Endo, 1944) [species] †Plesiagraulos transversus Yuan & Li, 1999 [species] †Poriagraulos abrota (Walcott, 1905) [species] †Poriagraulos dactylogrammacus Zhang & Yuan, 1981 [species] †Poriagraulos perforatus Chang, 1963 [species] †Pseudoplesiagraulos maozhuangensis Lu et al., 1988 [species] †Pseudoplesiagraulos planus Lu et al., 1988 [species] †Qiannanagraulos costatus Yuan et al., 1997 [species] †Qiannanagraulos orientalis Yuan et al., 1997 [species] †Skreiaspis spinosus Jahn, 1895 [species] †Tangshihlingia subtriangulata Chu, 1959 [species] †Tengfengiidae [family] †Tengfengia (Luguoia) luguoensis Lu & Zhu, 2001 [species] †Tengfengia latilimbata Hsiang, 1962 [species] †Tricrepicephalidae [family] †Meteoraspis mutica Rasetti, 1961 [species] †Meteoraspis orientalis Yuan & Yin, 1998 [species] †Tricrepicephalus asiaticus Yuan & Yin, 1998 [species] †Utiidae [family] †Utia curio Walcott, 1924 [species] †Yunnanocephalidae [family] †Pinarella isolata (Palmer & Gatehouse, 1972) [species] †Sinolenus brevis Ju, 1983 [species] †Sinolenus hotangensis Ju, 1983 [species] †Yunnanocephalus planifrons Luo, 1981 [species] †Yunnanocephalus subparallelus Luo, 1981 [species] †Yunnanocephalus yunnanensis (Mansuy, 1912) [species] †Pyraustocranium orbatum Ross, 1951 [species] †Redlichiida [order] †Abadiellidae [family] †Abadiella conica Luo, 1981 [species] †Abadiella hanzhongensis Chen, 1985 [species] †Abadiella huoi (Chang, 1966) [species] †Abadiella nanzhengensis Chen, 1985 [species] †Abadiella yunnanensis Luo, 1981 [species] †Abadiella zhongliangsiensis Chen, 1985 [species] †Malongocephalus yunnanensis Zhang et al., 1980 [species] †Shaanxia curvata Zhang et al., 1980 [species] †Archaeaspididae [family] †Bradyfallotaspis fusa Fritz, 1972 [species] †Bradyfallotaspis patula Fritz, 1972 [species] †Australaspis magnus Palmer & Gatehouse, 1972 [species] †Chengkouaspidae [family] †Bathynotus kueichouensis Lu, 1964 [species] †Chengkouaspis longioculus Zhang et al., 1980 [species] †Dolerolenidae [family] †Malungia laevigata Lu, 1961 [species] †Drepanuroides (Paradrepanuroides) robusta Zhao et al., 1984 [species] †Emuellidae [family] †Balcoracania dailyi Pocock, 1970 [species] †Emuella dalgarnoi Pocock, 1970 [species] †Emuella polymera Pocock, 1970 [species] †Emuelloidea [superfamily] †Megapharanaspidae [family] †Megapharanaspis nedini Paterson & Jago, 2006 [species] †Fallotaspididae [family] †Amplifallotaspis keni Hollingsworth, 2007 [species] †Parafallotaspis grata Fritz, 1972 [species] †Profallotaspis tyusserica Bushuev et al., 2014 [species] †Fandianaspis elegans Li, 1980 [species] †Fandianaspis emeiensis Li, 1980 [species] †Gigantopygidae [family] †Parazhangshania prompta Li et al., 1990 [species] †Parazhangshania sichuanensis Li et al., 1990 [species] †Yiliangella leshanensis Li et al., 1990 [species] †Yiliangella longa Li et al., 1990 [species] †Yiliangella xundianensis Luo et al., 2008 [species] †Zhangshania typica Li et al., 1990 [species] †Holmiidae [family] †Cambropallas telesto Geyer, 1993 [species] †Elliptocephalus mirabilis (Poulsen, 1958) [species] †Esmeraldina elliptica Hollingsworth, 2006 [species] †Esmeraldina rowei (Walcott, 1910) [species] †Grandinasus auricampus Hollingsworth, 2006 [species] †Grandinasus patulus Hollingsworth, 2006 [species] †Holmia glabra Orlowski, 1974 [species] †Holmia grandis Kiaer, 1917 [species] †Holmia inusitata Ahlberg & Bergström in Ahlberg, 1986 [species] †Holmia kjerulfi (Linnarsson, 1871) [species] †Holmia lapponica Ahlberg & Bergström, 1983 [species] †Holmia marginata Orlowski, 1974 [species] †Holmia mobergi Bergström, 1973 [species] †Holmia palpebra Ahlberg, 1984 [species] †Holmia sulcata Bergström, 1973 [species] †Holmia zimmermanni Schwarzbach, 1939 [species] †Holmiella falcuta Fritz, 1972 [species] †Holmiella falx Hollingsworth, 2006 [species] †Holmiella millerensis Hollingsworth, 2006 [species] †Holmiella preancora Fritz, 1972 [species] †Kjerulfia lata Kiaer, 1917 [species] †Kjerulfia orienta (Orlowski, 1974) [species] †Montezumaspis parallela Fritz, 1995 [species] †Kueichowia guizhouensis Zhang et al., 1980 [species] †Kueichowia liui Lu, 1942 [species] †Metadoxididae [family] †Fuminaspis yunnanaspis Zhang et al., 1980 [species] †Fuminaspis yunnanensis (Chang & Lin, 1974) [species] †Hongshiyanaspis yiliangensis Zhang et al., 1980 [species] †Nevadiidae [family] †Buenellus higginsi Blaker, 1988 [species] †Nevadella bacculenta Fritz, 1972 [species] †Nevadella effusa Repina, 1974 [species] †Nevadella eucharis Wallcott, 1913 [species] †Nevadella faceta Fritz, 1972 [species] †Nevadella keelensis Abe et al., 2010 [species] †Nevadia addyensis Okulitch, 1951 [species] †Olenellidae [family] †Bristolia bristolensis (Resser, 1928) [species] †Bristolia insolens (Resser, 1928) [species] †Fremontella halli (Walcott, 1910) [species] †Fremontia brevoculus (Resser & Howell, 1938) [species] †Fremontia canadensis (Walcott, 1910) [species] †Fremontia fremonti (Walcott, 1910) [species] †Laudonia bispinata Harrington, 1956 [species] †Laudonia prima (Lochman, 1952) [species] †Olenellus altifrontatus Fritz, 1972 [species] †Olenellus bufrontis Fritz, 1991 [species] †Olenellus gilberti White, 1874 [species] †Olenellus laxocules Fritz, 1972 [species] †Olenellus paraoculus Fritz, 1972 [species] †Olenellus parvofrontatus Fritz, 1991 [species] †Olenellus roddyi Resser & Howell, 1938 [species] †Olenellus sequomalus Fritz, 1972 [species] †Olenellus sphaerulosus Fritz, 1991 [species] †Paedeumias clarki Resser, 1928 [species] †Paedeumias granulatus Palmer, 1964 [species] †Paedeumias nevadensis (Walcott, 1910) [species] †Paedeumias subgroenlandicus (Repina, 1965) [species] †Wanneria listeri Below, 1987 [species] †Wanneria misolensis Below, 1987 [species] †Wanneria parvifrons Fritz, 1972 [species] †Paokannia chinensis Ho & Lee, 1959 [species] †Paradoxidoidea [superfamily] †Paradoxididae [family] †Acadoparadoxides briareus Geyer, 1993 [species] †Acadoparadoxides deani Geyer & Vincent, 2015 [species] †Acadoparadoxides harlani Green, 1834 [species] †Acadoparadoxides levisettii Geyer & Vincent, 2015 [species] †Acadoparadoxides mureroensis (Sdzuy, 1958) [species] †Acadoparadoxides nobilis (Geyer, 1998) [species] †Acadoparadoxides ovatopyge Geyer & Vincent, 2015 [species] †Eccaparadoxides eteminicus Matthew, 1883 [species] †Eccaparadoxides pusillus (Barrande, 1846) [species] †Paradoxides oelandicus Sjögren, 1872 [species] †Paradoxides paradoxissimus (Wahlenberg, 1821) [species] †Paradoxides pinus Westergard, 1936 [species] †Paradoxides sjogreni Linnarsson, 1877 [species] †Parapaokannia sichuanensis Zhang et al., 1980 [species] †Parayinites spinosus Zhang et al., 1980 [species] †Protolenidae [family] †Chorbusulina bella Lazarenko, 1964 [species] †Chorbusulina subdita Palmer & Gatehouse, 1972 [species] †Chorbusulina wilkesi Palmer & Gatehouse, 1972 [species] †Qiaodiella qiaodiensis Zhang et al., 1980 [species] †Qiaodiella wodangensis Zhang et al., 1980 [species] †Qingkouia kaiyangensis (Zhang et al., 1980) [species] †Qingkouia zhangyangouensis Zhang et al., 1980 [species] †Redlichiidae [family] †Breviredlichia granulosa Zhang et al., 1980 [species] †Chaoaspis ovatus Chang, 1966 [species] †Chaoaspis palmeri Li, 1980 [species] †Chaoaspis sdzuyi Li, 1980 [species] †Chaoaspis semicircularis Li, 1980 [species] †Chaoaspis similis Li, 1980 [species] †Chengjiangaspis chengjiangensis Zhang et al., 1980 [species] †Eoredlichia carinata (Mansuy, 1912) [species] †Eoredlichia emeiensis Lee, 1978 [species] †Eoredlichia intermedia (Lu, 1940) [species] †Eoredlichia walcotti (Mansuy, 1912) [species] †Kuanyangia granulosa Zhang, 1966 [species] †Kuanyangia pustulosa (Lu, 1941) [species] †Leptoredlichia elongata Qiu, 1980 [species] †Maopingaspis guizhouensis Zhang et al., 1980 [species] †Meitanella hastata Zhang et al., 1980 [species] †Metaredlichia xibeiensis Zhu & Lin, 1983 [species] †Mianxianella angusta Zhang et al., 1980 [species] †Mianxianella expansa Zhang et al., 1980 [species] †Mianxianella guizhouensis Zhao & Huang, 1981 [species] †Mianxianella pustulosa Zhao et al., 1984 [species] †Mianxianella spinosa Zhang et al., 1980 [species] †Ningqiangaspis ningqiangensis Zhang et al., 1980 [species] †Pachyredlichia shensiensis Chang, 1966 [species] †Parazhenbaspis kuruktagensis Zhu & Lin, 1983 [species] †Parazhenbaspis mohershanensis Zhu & Lin, 1983 [species] †Pseudoredlichia jinshaensis Zhang et al., 1980 [species] †Redlichia (Pteroredlichia) chinensis (Walcott, 1905) [species] †Redlichia (Pteroredlichia) murakamii (Resser & Endo, 1937) [species] †Redlichia (Pteroredlichia) qiaotouensis Guo & An, 1982 [species] †Redlichia benxiensis Guo & An, 1982 [species] †Redlichia distincta Guo & An, 1982 [species] †Redlichia guizhouensis Zhou, 1974 [species] †Redlichia habita Yang et al., 1993 [species] †Redlichia hupehensis Hsu, 1948 [species] †Redlichia jianchangensis Guo & An, 1982 [species] †Redlichia kaiyangensis Chang & Lin, 1974 [species] †Redlichia nanjiangensis Zhang et al., 1980 [species] †Redlichia nobilis Walcott, 1905 [species] †Redlichia shangnanensis Yang et al., 1993 [species] †Redlichia shijiangjunensis Zhang et al., 1980 [species] †Redlichia takooensis Lu, 1950 [species] †Redlichia tianshifuensis Zhang et al., 1980 [species] †Redlichia tumida Guo & An, 1982 [species] †Runnania similis Lee, 1978 [species] †Syndianella guizhouensis Zhang et al., 1980 [species] †Wutingaspis anningensis Luo, 1981 [species] †Wutingaspis kunyangensis Luo, 1981 [species] †Wutingaspis malungensis Lu, 1961 [species] †Wutingaspis planifrons Luo, 1981 [species] †Wutingaspis sichuanensis Lee, 1978 [species] †Wutingaspis tingi Kobayashi, 1944 [species] †Wutingaspis zhangshanensis Li et al., 1990 [species] †Zhenbaspis dashapoensis (Zhou, 1974) [species] †Zhenbaspis longa Zhou, 1975 [species] †Zhenbaspis longispinus Zhao & Huang, 1981 [species] †Zhenbaspis subconica Zhang, 1974 [species] †Ushbaspis rectangularis Zhu & Lin, 1983 [species] †Xystridura glacia Palmer & Gatehouse, 1972 [species] †Xystridura jielingensis Yang et al., 1993 [species] †Xystridura multilinia Palmer & Gatehouse, 1972 [species] †Yinites elongatus Zhao & Huang, 1981 [species] †Yinites fuquanensis Zhao & Huang, 1981 [species] †Yinites typicalis Lu, 1946 [species] †Yinites wanshougongensis Zhang et al., 1980 [species] †Scutelluidae [family] †Illaenoscutellum platiceps Kobayashi & Hamada, 1974 [species] †Japonoscutellum geniculatum Kobayashi & Hamada, 1985 [species] †Japonoscutellum japonicum (Kobayashi & Hamada, 1965) [species] †Japonoscutellum tunidum Kobayashi & Hamada, 1987 [species] †Opoa trinodosa Kobayashi & Hamada, 1986 [species] †Tosacephalus fungiformis Kobayashi & Hamada, 1974 [species] †Sekwiaspis artifrons Fritz, 1972 [species] †Sphaerocare globifrons Harrington & Leanza, 1957 [species] †Spizharaspis rarus Ergaliev, 2001 [species] †Sunaspididae [family] †Sunaspidella limbata Zhang et al., 1995 [species] †Sunaspidella rara Zhang & Yuan, 1981 [species] †Sunaspis laevis Lu, 1953 [species] †Sunaspis lui Lee, 1965 [species] †Sunaspis triangularis Zhang et al., 1980 [species] †Variopelta brevicervicata Fritz, 1991 [species] †Variopelta laevis Fritz, 1972 [species]