†family Euspirocrinidae Bather 1890 (feather star)
Parent taxon: Cyathocrinida according to R. Haude 2004
Sister taxa: Codiacrinacea, Codiacrinoidea, Cyathocrinitacea, Hypocrinacea
Subtaxa: Anaglyptocrinus, Illemocrinus, Manocrinus, Necopinocrinus
Ecology: stationary intermediate-level epifaunal suspension feeder