†superfamily Xenocrinoidea Miller 1890 (Sea lily)

Crinoidea - Monobathrida

Parent taxon: Compsocrinina according to G. D. Webster 2006

Sister taxa: Carpocrinacea, Carpocrinoidea, Hexacrinitoidea, Periechocrinacea, Platycrinitoidea, Xenocrinacea

Subtaxa: Tanaocrinidae

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Ecology: stationary upper-level epifaunal suspension feeder

Distribution:

• Silurian of United States (1: New York collection)

• Ordovician of United States (5: Iowa, Ohio)

Total: 6 collections including 7 occurrences

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