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Corynexochina

Trilobita - Corynexochida

Synonymy list
YearName and author
1935Corynexochina Kobayashi
2011Corynexochina Adrain p. 105

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
RankNameAuthor
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderCorynexochida
suborderCorynexochinaKobayashi 1935
suborderCorynexochinaKobayashi 1935

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Subor. †Corynexochina Kobayashi 1935
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Fm. †Chengkouiidae Zhu 1980
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G. †Acanthomicmacca Hupé 1953
+
+
+
Invalid names: Micmacca sera Sdzuy 1960 [synonym]
†Acanthomicmacca cylindrica Qian and Yao 1974
†Acanthomicmacca walcotti Mathew 1899
Invalid names: Chengkouia Lu and Chang 1974 [synonym]
G. †Bidjinella Repina 1964
G. †Micmacca Matthew 1895
+
†Micmacca comleyensis Cobbold 1931
†Micmacca protolenoides Cobbold 1931
G. †Xiuqiella Chien and Yao 1974
+
†Xiuqiella rectangula Chien and Yao 1974
Fm. †Corynexochidae Angelin 1854
+
G. †Abakania Poletaeva 1973
G. †Acontheus Angelin 1852
+
Invalid names: Aneucanthus Angelin 1854 [objective synonym]
G. †Bonnaspis Resser 1936
+
†Bonnaspis stephenensis Walcott 1889
+
Invalid names: Corynexochus roemingeri Matthew 1899 [synonym], Menocephalus salteri Rominger 1887 [synonym]
G. †Chatiania Yang 1977
+
†Chatiania convexa Peng et al. 2004
†Chatiania expansa Yuan and Yin 1998
Invalid names: Parachatiania Yuan and Yin 1998 [synonym]
G. †Clavigellus Geyer 1994
Subfm. †Corynexochinae Angelin 1854
+
G. †Corynexochina Lermontova 1940
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†Corynexochina sinensis Peng et al. 2004
†Corynexochina weberi Lermontova 1940
G. †Corynexochus Angelin 1854
+
Subg. †Corynexochus (Bonnia) Walcott 1916
†Corynexochus bornholmiensis Grönwall 1902
†Corynexochus chinensis Lin and Zhang 1979
†Corynexochus delagei Miquel 1905
†Corynexochus donggouensis Lin and Zhang 1979
†Corynexochus elongatus Yang et al. 1993
†Corynexochus eosimplex Yang et al. 1993
†Corynexochus hunanensis Duan et al. 1999
†Corynexochus minor Walcott 1889
†Corynexochus plumula Whitehouse 1939
†Corynexochus spinulosus Angelin 1878
†Corynexochus xiangxiensis Peng et al. 2004
G. †Eochatiania Yuan and Yin 1998
+
†Eochatiania laevigata Yuan and Yin 1998
G. †Eocorynexochus Korobeinikova 1965
G. †Hartshillia Illing 1914
G. †Hartshillina Lake 1940
G. †Milaspis Sivov 1960
G. †Miranella Pokrovskaya 1960
G. †Sanaschtykgolia Poletaeva 1960
G. †Shivelicus Pokrovskaya 1959
G. †Stenochilina Ulrich 1931
G. †Trinia Poletaeva 1956
Fm. †Dinesidae Lermontova 1940
+
G. †Aldanianus Özdikmen 2006
+
†Aldanianus mitis Repina 1964
Invalid names: Compsocephalus Repina 1973 [replaced]
G. †Amginoerbia Chernysheva 1967
G. †Botomella Suvorova 1958
G. †Chakasskia Poletayeva 1936
G. †Chakasskinella Repina 1964
G. †Dilataspis Repina et al. 1999
G. †Dinesus Etheridge 1896
+
†Dinesus ida Etheridge 1896
G. †Erbia Lermontova 1940
+
†Erbia granulosa Lermontova 1940
Invalid names: Paratollaspis Kobayashi 1943 [objective synonym]
G. †Erbiella Fedyanina 1962
G. †Erbina Pokrovskaya
G. †Erbiopsidella Pokrovskaya 1959
G. †Erbiopsis Lermontova 1940
G. †Haydenaspis Peng et al. 2009
+
†Haydenaspis parvatya Peng et al. 2009
G. †Proerbia Lermontova 1940
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†Proerbia sinensis Duan and An 2001
G. †Pseudoerbia Repina 1964
G. †Rondocephalus Pokrovskaya 1959
G. †Tollaspis Kobayashi 1935
Fm. †Dorypygidae Kobayashi 1935
+
G. †Atdabanella Repina 1965
G. †Basocephalus Ivshin 1952
G. †Bonnaria Lochman 1956
G. †Bonnia Walcott 1916
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†Bonnia bicensis Resser 1936
†Bonnia bombifrons Matthews 1887
†Bonnia brennus Walcott 1916
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Invalid names: Bonnia quebecensis Resser 1936 [synonym], Bonnia quebecensis Resser 1936 [synonym]
†Bonnia bubaris Walcott 1916
†Bonnia busa Walcott 1916
†Bonnia caperata Palmer 1964
†Bonnia capito Walcott 1916
+
Invalid names: Bonnia tumifrons Resser 1936 [synonym], Bonnia wanneri Resser 1936 [synonym]
†Bonnia carnata Fritz 1991
†Bonnia clavata Walcott 1887
+
Invalid names: Bonnia salemensis Resser 1936 [synonym]
†Bonnia columbensis Resser 1936
†Bonnia copia Fritz 1968
†Bonnia decora Fritz 1991
†Bonnia fieldensis Walcott 1908
†Bonnia lata Resser 1936
†Bonnia laterispina Fritz 1972
†Bonnia matthewi Resser 1936
†Bonnia parvula Billings 1861
†Bonnia quadrata Fritz 1991
†Bonnia senecta Billings 1861
†Bonnia sonora Lochman 1952
†Bonnia swantonensis Resser 1936
†Bonnia vermontensis Resser 1936
Invalid names: Bonnia sola Resser and Howell 1938 [nomen vanum]
G. †Bonniella Resser 1937
+
†Bonniella yorkensis Resser and Howell 1938
G. †Bonnima Fritz 1991
+
†Bonnima semidiscoidea Fritz 1991
G. †Bonniopsis Poulsen 1946
G. †Dorypygina Lermontova 1940
Subfm. †Dorypyginae Kobayashi 1935
+
G. †Dorypyge Dames 1883
+
†Dorypyge bisulcata Peng et al. 2004
†Dorypyge globosa Peng et al. 2004
†Dorypyge huaqiaoensis Peng et al. 2004
†Dorypyge kunshanensis Qian and Zhou 1984
†Dorypyge lakei Cobbold 1911
†Dorypyge pergranosa Resser and Endo 1937
†Dorypyge qinlingensis Yang et al. 1993
†Dorypyge richthofeni Dames 1883
†Dorypyge richthofeniformis Lermontova 1940
†Dorypyge shanxiensis Zhang et al. 1980
†Dorypyge swasii Sundberg 1994
G. †Kootenia Walcott 1899
+
†Kootenia acicularis Resser 1939
†Kootenia aculacauda Fritz 1968
†Kootenia anabarensis Lermontova 1951
†Kootenia bolis Zhang et al. 1980
†Kootenia boucheri Shaw 1957
†Kootenia crassa Fritz 1968
†Kootenia crassinucha Fritz 1968
†Kootenia dawsoni Walcott 1889
†Kootenia diutina Fritz 1972
†Kootenia exilaxata Deiss 1939
+
Invalid names: Kootenia fragilis Deiss 1939 [synonym], Kootenia infera Deiss 1939 [synonym], Kootenia scapegoatensis Deiss 1939 [synonym]
†Kootenia fida Zhang et al. 1980
†Kootenia germana Resser 1939
†Kootenia gracilens Zhu 1987
†Kootenia gracilis Resser 1939
†Kootenia henglinheensis Yang et al. 1993
†Kootenia idahoensis Resser 1939
†Kootenia jialaoensis Lu and Chien 1978
†Kootenia longa Ju 1983
†Kootenia margoindistincta Sundberg 1994
†Kootenia mathewsi Resser 1939
†Kootenia quadriceps Hall and Whitfield 1877
†Kootenia randolphi Robison and Babcock 2011
†Kootenia sanwanensis Zhou 1974
†Kootenia shanxiensis Zhang et al. 1980
†Kootenia spencei Resser 1939
†Kootenia styrax Palmer and Gatehouse 1972
†Kootenia yichunensis Duan and An 2001
†Kootenia yui Chang 1963
Invalid names: Notasaphus Gregory 1903 [synonym]
G. †Fordaspis Lochman 1956
+
†Fordaspis tumida Walcott 1887
G. †Hicksia Delgado 1904
G. †Holteria Walcott 1924
+
†Holteria problematica Walcott 1884
G. †Holyoakia Palmer and Rowell 1995
+
†Holyoakia simpsoni Paterson and Jago 2006
G. †Kooteniella Lermontova 1940
+
Invalid names: Babakovia Sivov 1955 [synonym]
G. †Kooteniellina Sivov 1955
G. †Liokootenia Qiu 1983
G. †Mengzia Lo 1974
G. †Metakootenia Qiu 1983
G. †Ogygopsis Walcott 1889
+
†Ogygopsis klotzi Rominger 1887
†Ogygopsis typicalis Resser 1979
Invalid names: Taxioura Resser 1939 [synonym]
G. †Olenoides Meek 1877
+
†Olenoides abnormis Yuan et al. 1997
†Olenoides brighamensis Resser 1939
†Olenoides buttsi Rasetti 1965
†Olenoides comptus Repina 1975
†Olenoides curticei Walcott 1889
†Olenoides evansi Resser 1939
†Olenoides expansus Walcott 1884
†Olenoides nevadensis Meek 1870
†Olenoides obrutchevi Lermonntova 1926
†Olenoides octaspinus Yuan et al. 1997
†Olenoides paraptus Zhao et al. 1994
†Olenoides pennsylvanicus Rasetti 1965
†Olenoides serratus Rominger 1887
†Olenoides skabelundi Robison and Babcock 2011
†Olenoides steptoensis Fritz 1968
†Olenoides tranans Öpik 1967
†Olenoides vali Robison and Babcock 2011
†Olenoides wahsatchensis Hall and Whitfield 1877
+
Invalid names: Dikelocephalus gothicus Hall and Whitfield 1877 [synonym]
Invalid names: Neolenus Matthew 1899 [synonym]
G. †Olenoidestranans Meek 1877
G. †Paraolenoides Ivshin 1952
G. †Popigaia Egorova 1967
G. †Prokootenia Lermontova 1940
G. †Protypus Walcott 1986
+
†Protypus hitchcocki Whitfield 1884
Invalid names: Bicaspis Resser 1938 [synonym]
G. †Shipaiella Zhang et al. 1980
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†Shipaiella pyriformis Zhang et al. 1980
G. †Strettonia Cobbold 1931
+
†Strettonia comleyensis Cobbold 1931
G. †Tabatopygellina Sivov 1955
G. †Tolanaspis Ivshin 1952
Invalid names: Ogygopsididae Rasetti 1951 [synonym]
Fm. †Edelsteinaspididae Hupé 1953
+
G. †Alacephalus Repina 1960
G. †Edelsteinaspis Lermontova 1940
G. †Gelasene Palmer 1968
G. †Labradoria Resser 1936
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†Labradoria miser Billings 1861
Invalid names: Sinolenus Kobayashi 1944 [synonym]
G. †Laticephalus Pokrovskaya 1959
G. †Litaspis Suvorova 1960
G. †Nehanniaspis Fritz 1972
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†Nehanniaspis prima Fritz 1972
G. †Nodiceps Suvorova 1959
G. †Paleofossus Pokrovskaya 1959
G. †Polliaxis Palmer 1968
+
†Polliaxis hanseni Hollingsworth 2005
Fm. †Jakutidae Suvorova 1950
+
G. †Bathyuriscellus Lermontova 1951
+
†Bathyuriscellus australis Palmer and Gatehouse 1972
†Bathyuriscellus modestus Palmer and Gatehouse 1972
G. †Bathyuriscopsis Suvorova 1960
G. †Jakutus Lermontova 1951
G. †Judaiella Lermontova 1951
G. †Lenaspis Survorova 1959
G. †Malykania Suvorova 1958
+
†Malykania mongolica Korobov 1980
G. †Prouktaspis Repina 1965
G. †Uktaspis Korobov 1963
Fm. †Oryctocephalidae Beecher 1897
+
G. †Arthricocephalus Bergeron 1899
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†Arthricocephalus chauveaui Bergeron 1899
†Arthricocephalus tenuis Zhang and Zhou 1985
G. †Balangia Chien 1961
G. †Barklyella Shergold 1969
G. †Changaspis Lee 1961
+
†Changaspis elongata Lee 1961
†Changaspis placenta Zhang et al. 1980
†Changaspis taihuensis Zhang and Zhou 1985
†Changaspis transversus Yang et al. 1993
G. †Cheiruroides Kobayashi 1935
+
†Cheiruroides arcticus Chernysheva 1962
G. †Curvoryctocephalus Zhao and Yuan 2002
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†Curvoryctocephalus taijiangensis Zhao and Yuan 2002
G. †Duyunaspis Zhang and Qian 1977
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†Duyunaspis duyunensis Zhang and Qian 1977
†Duyunaspis laevigatus Zhang et al. 1980
†Duyunaspis obesis Zhang et al. 1980
†Duyunaspis songtaoensis Qian and Lin 1977
G. †Euarthricocephalus Ju 1983
+
†Euarthricocephalus taijiangensis Zhou and Yuan 2002
G. †Feilongshania Zhang et al. 1980
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†Feilongshania brevica Zhang et al. 1980
†Feilongshania shichangensis Zhang et al. 1980
G. †Hunanocephalus Lee 1963
+
Subg. †Hunanocephalus (Duotingia) Chow 1974
+
†Duotingia taihuensis Zhang and Zhou 1985
G. †Kunshanaspis Zhang and Zhou 1985
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†Kunshanaspis suzhouensis Zhang and Zhou 1985
G. †Lancastria Kobayashi 1935
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†Lancastria plana Tomashpolskaya and Khalfin 1960
†Lancastria roddyi Resser and Howell 1938
Invalid names: Chienaspis Suvorova 1964 [synonym], Goldfieldia Palmer 1964 [synonym], Paraoryctocephalops Tomashpolskaya and Khalfin 1960 [synonym], Pseudolancastria Lee 1963 [synonym]
G. †Metabalangia Zhang et al. 1980
+
†Metabalangia yupingensis Zhang et al. 1980
G. †Metarthricocephalus Zhao and Yuan 2002
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†Metarthricocephalus spinosus Zhao and Yuan 2002
G. †Opsiosoryctocephalus Sundberg 1994
+
†Opsiosoryctocephalus ophis Sundberg 1994
G. †Oryctocara Walcott 1908
+
†Oryctocara geikiei Walcott 1908
G. †Oryctocare Tomashpolskaya 1961
Subfm. †Oryctocarinae Hupé 1953
+
G. †Microryctocara Sundberg and McCollum 1997
+
†Microryctocara nevadensis Sundberg and McCollum 1997
G. †Ovatoryctocara Chernysheva 1960
+
†Ovatoryctocara granulata Chernysheva 1960
G. †Oryctocephalina Tomashpolskaya 1961
Subfm. †Oryctocephalinae Beecher 1897
+
G. †Oryctocephalites Resser 1939
+
+
†Parachangaspis haopingensis Yang et al. 1993
†Oryctocephalites gelasinus Shergold 1969
†Oryctocephalites incertus Tchernysheva 1962
†Oryctocephalites kueizhouensis Lu and Chien 1974
†Oryctocephalites limbatus Tchernysheva 1962
†Oryctocephalites longus Zhao and Yuan 2002
†Oryctocephalites opiki Shergold 1969
†Oryctocephalites palmeri Sundberg and McCollum 1997
†Oryctocephalites rasettii Sundberg and McCollum 1997
†Oryctocephalites resseri Rasetti 1951
+
Invalid names: Oryctocephalites walcotti Resser 1938 [synonym]
†Oryctocephalites runcinatus Shergold 1969
†Oryctocephalites sulcatus Shergold 1969
†Oryctocephalites taijiangensis Zhao and Yuan 2002
†Oryctocephalites vicinus Tchernysheva 1962
G. †Oryctocephalus Walcott 1886
+
†Oryctocephalus americanus Sundberg and McCollum 2003
†Oryctocephalus elongatus Zhao et al. 1997
†Oryctocephalus granulatus Korovnikov 2008
†Oryctocephalus incurvus Lu and Chien 1974
+
Invalid names: Oryctocephalus kobayashii Saito 1934 [objective synonym]
†Oryctocephalus nyensis Palmer and Halley 1979
†Oryctocephalus primus Walcott 1886
†Oryctocephalus reticulatus Lermontova 1940
G. †Tonkinella Mansuy 1916
+
†Tonkinella breviceps Kobayashi 1934
†Tonkinella gavrilovae Dalmatov 1975
†Tonkinella spinosa Sundberg 2006
†Tonkinella valida Tchernysheva 1962
G. †Oryctocephaloides Zhang et al. 1980
+
†Oryctocephaloides convexus Zhang et al. 1980
†Oryctocephaloides robustus Zhao and Yuan 2001
G. †Oryctocephalops Lermontova 1940
+
†Oryctocephalops frischenfeldi Lermontova 1940
†Oryctocephalops guizhouensis Zhao and Yuan 2002
†Oryctocephalops tongrenensis Lu and Qian 1938
G. †Paleooryctocephalus Repina 1964
G. †Protoryctocephalus Chow 1974
+
†Protoryctocephalus arcticus Geyer and Peel 2011
†Protoryctocephalus balangensis Zhao and Yuan 2002
G. †Sandoveria Shergold 1969
G. †Shabaella Qian and Sun 1977
+
†Shabaella convexa Ju 1983
†Shabaella fengzuensis Lu and Lin 1983
G. †Shergoldiella Geyer 2006
+
†Shergoldiella vincenti Geyer 2006
G. †Thoracocare Robison and Campbell 1974
+
†Thoracocare idahoensis Resser 1939
Invalid names: Cheiruroididae Zhang 1963 [invalid subgroup], Tonkinellinae Reed 1934 [empty]
Fm. †Zacanthoididae Swinnerton 1915
+
G. †Albertella Walcott 1908
+
†Albertella eiloitys Fritz 1968
†Albertella fritzi Eddy and McCollum 1998
†Albertella helena Walcott 1908
†Albertella highlandensis Eddy and McCollum 1998
†Albertella judithi Fritz 1968
†Albertella lata Fritz 1968
†Albertella longwelli Palmer and Halley 1979
†Albertella nitida Resser 1936
†Albertella proveedora Lochman 1952
†Albertella robsonensis Resser 1936
†Albertella rossensis Resser 1936
†Albertella sampsoni Resser 1938
†Albertella schenki Resser 1945
†Albertella spectrensis Palmer and Halley 1979
G. †Albertellina Palmer and Halley 1979
+
†Albertellina aspinosa Palmer and Halley 1979
G. †Albertelloides Fritz 1968
+
†Albertelloides kitai Eddy and McCollum 1998
†Albertelloides mischi Fritz 1968
†Albertelloides rectimarginatus Palmer and Halley 1979
G. †Chuchiaspis Chang 1974
G. †Danjiangella Yang et al. 1993
+
†Danjiangella tenuispinosa Yang et al. 1993
G. †Delamarella Eddy and McCollum 1998
+
†Delamarella brevispinaspis Eddy and McCollum 1998
G. †Fieldaspis Rasetti 1951
+
†Fieldaspis bilobata Rasetti 1951
†Fieldaspis celer Walcott 1917
†Fieldaspis superba Rasetti 1951
G. †Mexicaspis Lochman 1948
+
†Mexicaspis difuntosensis Lochman 1952
†Mexicaspis radiatus Palmer and Halley 1979
†Mexicaspis stenopyge Lochman 1948
G. †Micmaccopsis Lermontova 1940
G. †Panxinella Lin 1974
G. †Paralbertella Palmer and Halley 1979
+
†Paralbertella bosworthi Walcott 1908
+
Invalid names: Albertella similaris Resser 1936 [synonym], Albertella stenorhachis Rasetti 1951 [synonym]
G. †Parkaspis Rasetti 1951
+
†Parkaspis drumensis Sundberg 1994
G. †Prozacanthoides Resser 1937
+
†Prozacanthoides lahiri Peng et al. 2009
G. †Pseudozacanthopsis Repina 1960
+
†Pseudozacanthopsis yichunensis Duan and An 2001
G. †Ptarmiganoides Rasetti 1951
+
†Ptarmiganoides alia Resser 1939
†Ptarmiganoides crassaxis Palmer and Halley 1979
†Ptarmiganoides hexacantha Palmer and Halley 1979
†Ptarmiganoides propinqua Resser 1939
G. †Qingzhenaspis Yin 1978
+
†Qingzhenaspis intermedia Zhao and Huang 1981
G. †Stephenaspis Rasetti 1951
+
†Stephenaspis avitus Palmer 1964
†Stephenaspis highlandensis Sundberg and McCollum 2003
G. †Ursinella Eddy and McCollum 1998
+
†Ursinella major Eddy and McCollum 1998
G. †Vanuxemella Walcott 1916
+
†Vanuxemella idahoensis Resser 1938
Invalid names: Vistoia Walcott 1925 [synonym]
G. †Zacanthoides Walcott 1888
+
†Zacanthoides abbreviatus Resser 1939
†Zacanthoides adjunctus Resser 1939
†Zacanthoides demissus Fritz 1968
†Zacanthoides divergens Rasetti 1951
†Zacanthoides eatoni Walcott 1890
†Zacanthoides fronslicinus Sundberg 1994
†Zacanthoides gradatus Resser 1939
†Zacanthoides holopygous Resser 1939
†Zacanthoides holopygus Resser 1939
†Zacanthoides idahoensis Walcott 1908
†Zacanthoides kelsayae Shaw 1957
†Zacanthoides liddelli Robison and Babcock 2011
†Zacanthoides marshalli Robison and Babcock 2011
†Zacanthoides sampsoni Resser 1938
†Zacanthoides serratus Resser 1939
†Zacanthoides spinosus Walcott 1884
†Zacanthoides typicalis Walcott 1886
†Zacanthoides variacantha Palmer and Halley 1979
†Zacanthoides walapai Resser 1945
Invalid names: Embolimus Rominger 1887 [replaced]
G. †Zacanthopsina Palmer 1964
+
†Zacanthopsina eperephes Palmer 1964
G. †Zacanthopsis Resser 1938
+
†Zacanthopsis contractus Palmer 1964
†Zacanthopsis expansa Fritz 1991
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: actively mobileo
Life habit: nektobenthico
Diet: carnivoreo
Created: 2009-09-21 20:17:08
Modified: 2012-08-27 07:15:31
Source: o = order, c = class
References: Aberhan et al. 2004, Hendy et al. 2009

Age range: base of the Branchian to the top of the Idamean or 517.10000 to 494.00000 Ma

Collections (875 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Caerfai538.8 - 509.0Canada (Nunavut) Bonniopsis sp. (184)
Caerfai538.8 - 509.0USA (Nevada) Bonnia sp. (190)
Early/Lower Cambrian538.8 - 509.0Falkland Islands (Malvinas) Edelsteinaspididae indet. (182203)
Early/Lower Cambrian538.8 - 509.0Spain (Aragon) Tonkinella sequei (120550)
Early/Lower Cambrian538.8 - 509.0Antarctica Bathyuriscellus australis, Bathyuriscellus modestus (154030)
Early/Lower Cambrian538.8 - 509.0Canada (Northwest Territories) Bonnia columbensis (156200) Bonnia laterispina (156185 156190) Bonnia sp. (156182 156197 156198) Bonnia sp., Zacanthopsis stribuccus (156194) Gelasene sp., Kootenia diutina (156159) Kootenia diutina (156132 156143 156147 156150 156152 156156 156158) Kootenia diutina, Nehanniaspis prima (156157) Oryctocephalus sp., Zacanthopsis stribuccus (156202) Paleofossus sp., Kootenia diutina (156145) Zacanthopsis stribuccus (156201)
Waucoban538.8 - 509.0Canada (British Columbia) Bonnia sp., Labradoria sp. (10864)
Caerfai - St Davids538.8 - 497.0Italy (Sardinia) Clavigellus sp. (55893) Corynexochus delagei (55902 55904)
Early/Lower Cambrian - Middle Cambrian538.8 - 497.0USA (Nevada) Dorypygidae indet. (204003)
Cambrian538.8 - 485.4Canada (British Columbia) Bonnia sp., Zacanthopsis sp. (186)

Youngest occurrences
Time interval Ma Country or state PBDB collection number
Sakian497.0 - 492.8Kazakhstan Corynexochus plumula (118252 118253 118254 118255 118260 118262 118263 118264 118304 118305 118309 118310 118312 118313 118328 118330 118332 118333 118334 118339 118341 118342 118344 118345 118346 118348 118350 118351 118368)
Dresbachian497.0 - 485.4USA (Alaska) Corynexochus plumula (64798)
Dresbachian497.0 - 485.4Canada (Yukon) Corynexochus plumula (55224 55233)
Merioneth497.0 - 485.4Iran Dorypyge sp. (10633)
Merioneth497.0 - 485.4Canada (Alberta-British Columbia) Kootenia sp., Olenoides sp., Tonkinella sp., Zacanthoides sp. (213)
Merioneth497.0 - 485.4USA (Idaho) Albertella sp., Kootenia sp., Ogygopsis sp., Olenoides sp., Oryctocephalites sp., Oryctocephalus sp., Prozacanthoides sp., Tonkinella sp., Taxioura sp. (198)
Merioneth497.0 - 485.4USA (Utah) Kootenia sp., Zacanthoides sp. (206)
Merioneth497.0 - 485.4USA (Nevada) Kootenia sp. (208)
Merioneth497.0 - 485.4Canada (British Columbia) Albertella sp., Vanuxemella sp. (199)
Paibian - Taoyuanian497.0 - 485.4China (Hunan) Corynexochus plumula, Corynexochus hunanensis (130015)