Classification of Regnéll 1966

Cl. †Edrioasteroidea Billings 1858
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Fm. †Agelacrinitidae Clarke 1901
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G. †Agelacrinites Vanuxem 1842
G. †Cooperidiscus Bassler 1935
G. †Discocystis Gregory 1897
G. †Isorophus Foerste 1916
G. †Isorophusella Bassler 1935
G. †Lepidodiscus Meek and Worthen 1868
G. †Thresherodiscus Foerste 1914
G. †Ulrichidiscus Bassler 1935
Fm. †Cyathocystidae Bather 1899
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G. †Cyathocystis Schmidt 1879
G. †Cyathotheca Jaekel 1927
Fm. †Edrioasteridae Bather 1898
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G. †Dinocystis Bather 1898
G. †Edrioaster Billings 1858
Fm. †Hemicystitidae Bassler 1936
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G. †Anglidiscus Regnéll 1950
G. †Bassleridiscus Fisher 1951
G. †Carneyella Forste 1916
G. †Cincinnatidiscus Bassler 1935
G. †Cystaster Hall 1871
G. †Foerstediscus Bassler 1935
G. †Hemicystites Hall 1852
G. †Lebetodiscus Bather 1908
G. †Lepidoconia Wilson 1946
G. †Pyrgocystis Bather 1915
G. †Streptaster Hall 1872
G. †Timeischytes Ehlers and Kesling 1958
Fm. †Stromatocystitidae Bassler 1936
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G. †Stromatocyctites Pompeck 1896
G. †Stromatocystites Pompeckj 1896
G. †Walcottidiscus Bassler 1935
G. †Xenocystites Bassler 1936