Classification of the family Isocolidae

Fm. †Isocolidae Angelin 1854
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G. †Cyphoniscus Salter 1853
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Cyphoniscus socialis Salter 1853
G. †Hanzhongaspis Chen 1975
G. †Holdenia Cooper 1953
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Holdenia typa Cooper 1953
G. †Isocolus Angelin 1854
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Isocolus dysdercus Whittington 1963
Isocolus sjogreni Angelin 1854
G. †Liangshanocephalus Chen 1975
G. †Paratiresias Petrunina 1975
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Paratiresias turkestanicus Petrunina 1975
G. †Pradesia Thoral 1935
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Pradesia martyi Thoral 1935
G. †Pseudopetigurus Prantl and Pribyl 1949
G. †Thomondia Harper 1942
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Thomondia globosa Harper 1942
G. †Thoralocolus Pillet and Courtessole 1985
G. †Tiresias McCoy 1846
G. †Triarthroides Raymond 1937