†superfamily Xenocrinacea Miller 1890 (Sea lily)
Parent taxon: Compsocrinina according to W. I. Ausich and P. Copper 2010
See also Ubaghs et al. 1978 and Webster 2006
Sister taxa: Carpocrinacea, Carpocrinoidea, Hexacrinitacea, Hexacrinitoidea, Periechocrinacea, Periechocrinoidea, Xenocrinoidea
Subtaxa: Abacocrinidae
Ecology: stationary upper-level epifaunal suspension feeder
Distribution: found only at Chicotte Formation, Anticosti (Silurian of Quebec)