Classification of Hess and Gale 2010
Or. †Millericrinida Sieverts-Doreck 1953
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Fm. †Apiocrinitidae d'Orbigny 1840
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G. †Apiocrinites Miller 1821
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†Apiocrinites gillieroni de Loriol 1877
†Apiocrinites parkinsoni von Schlotheim 1820
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Invalid names: Apiocrinites rotundus Miller 1821 [synonym]
Or. Cyrtocrinida Sieverts-Doreck 1953
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Fm. †Roveacrinidae Peck 1943
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G. †Discocrinus Peck 1943
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†Discocrinus catastomus Peck 1943
†Discocrinus integer Hess and Gale 2010
Fm. †Sclerocrinidae Jaekel 1918
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G. †Torynocrinus Seeley 1866
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†Torynocrinus canon Seeley 1866
†Torynocrinus globosus Hess and Gale 2010
Or. Isocrinida Sieverts-Doreck 1952
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Fm. Isocrinidae Gislén 1924
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Subfm. †Balanocrininae Roux 1981
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G. †Balanocrinus Agassiz 1847
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†Balanocrinus smithi Hess and Gale 2010
†Balanocrinus subteres Munster 1831
Subfm. †Isocrininae Gislen 1924
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Fm. †Cyclocrinidae Sieverts-Doreck 1953
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G. †Cyclocrinus d'Orbigny 1850
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†Cyclocrinus rugosus d'Orbigny 1841
†Cyclocrinus variolarius Seeley 1866