Crinoidea - Cyrtocrinida - Tetracrinidae

Parent taxon: Plicatocrinoidea according to H. Hess and C. G. Messing 2011

See also Hess 2012

Sister taxa: Plicatocrinidae, Quenstedticrinidae

Subtaxa: Arzocrinus Bilecicrinus Praetetracrinus Tetracrinus

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Type: Tetracrinus

Ecology: stationary epifaunal suspension feeder

Distribution:

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