Classification of the family Hybocrinidae
Fm. †Hybocrinidae Zittel 1879
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G. †Hybocrinus Billings 1857
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†Hybocrinus conicus Billings 1857
†Hybocrinus nitidus Sinclair 1945
†Hybocrinus pristinus Billings 1858
†Hybocrinus tumidus Billings 1857
G. †Parahybocrinus Guensburg and Sprinkle 2022
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†Parahybocrinus siewersi Guensburg and Sprinkle 2022
G. †Revalocrinus Jaekel 1918
G. †Syndiasmocrinus Guensburg and Sprinkle 2022
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†Syndiasmocrinus apokalypto Guensburg and Sprinkle 2022