Parent taxon: Cladida according to R. K. Pabian and W. J. Rushlau 2002
See also Ubaghs et al. 1978, Villanueva-Olea and Sour-Tovar 2015, Webster and Jell 1992 and Webster and Webster 2012
Sister taxa: Aaglacrinus, Aithriocrinus, Ampelocrinida, Apektocrinidae, Bicidiocrinus, Briseocrinus, Cathetocrinus, Contignatindocrinus, Cromyocrinacea, Cyathocrinacea, Dendrocrinina, Dimerocrinites anticostiensis, Eopilidiocrinus, Eucladida, Flexibilia, Goniocrinus, Harmostocrinus, Idaeumocrinus, Kanabinocrinus, Kansacrinus, Kooptoonocrinus, Lanecrinus, Lekocrinus, Lophocrinacea, Manicrinus, Mathericrinus, Menniscocrinus, Miatschkovocrinus, Nacocrinus, Nuxocrinus, Parascytalocrinus, Porocrinoidea, Poteriocrinitina, Premanicrinus, Pskovicrinus, Pulaskicrinus, Pumilindocrinus, Pyrenocrinus, Rimosidocrinus, Saccosompsis, Sardinocrinus, Scammatocrinus, Treocrinus, Wetherbyocrinus, Worthenocrinus
Subtaxa: Cymbiocrinidae Sellardsicrinidae
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution: