Classification of Pabian and Rushlau 2002
Subcl. Cladida Moore and Laudon 1943
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Superfm. †Lophocrinacea Bather 1899
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Superfm. †Scytalocrinacea Moore and Laudon 1943
Superfm. †Texacrinacea Strimple 1961
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Fm. †Scytalocrinidae Moore and Laudon 1943
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G. †Haeretocrinus Moore and Pulmmer 1940
Or. Cladida Moore and Laudon 1943
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Fm. †Cromyocrinidae Bather 1890
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G. †Aglaocrinus Strimple 1961
G. †Parethelocrinus Strimple 1961
G. †Ulocrinus Miller and Gurley 1890
Fm. †Pirasocrinidae Moore and Laudon 1943
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G. †Plaxocrinus Moore and Plummer 1937
G. †Triceracrinus Bramlette 1943
Superfm. †Pirasocrinacea Moore and Laudon 1943
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Superfm. †Erisocrinacea Wachsmuth and Springer 1886
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Fm. †Catacrinidae Knapp 1969
Superfm. †Apographiocrinoidea Moore and Laudon 1943
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Fm. †Stellarocrinidae Strimple 1961
Fm. †Euryocrinidae Moore and Strimple 1973
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G. †Paramphicrinus Strimple and Moore 1971