Classification of Donovan et al. 1993

Cl. Asteroidea de Blainville 1830 [sea star]
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Subcl. Neoasteroidea Gale 1987
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Fm. Astropectinidae Gray 1840
Fm. Goniasteridae Forbes 1841
Cl. Crinoidea Miller 1821 [Sea lily]
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Subcl. Articulata Miller 1821
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Or. †Roveacrinida Sieverts-Doreck
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Fm. †Saccocomidae d'Orbigny 1852
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G. †Applinocrinus Peck 1973
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†Applinocrinus cretacea Bather 1924
Or. Isocrinida Sieverts-Doreck 1952
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Subor. Comatulidina Clark 1908
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Infraor. Comatulidia Clark
Subor. Isocrinina Sieverts-Doreck 1952
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Fm. Isocrinidae Gislén 1924
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G. Cenocrinus Thomson 1864
G. Diplocrinus Doederlein 1912