Parent taxon: Eocrinoidea according to Y. Zhao et al. 2008
See also Parsley and Zhao 2006, Sepkoski 2002 and Sprinkle and Collins 2006
Sister taxa: Acanthocystites, Ascocystitida, Ascocystitidae, Balangicystis, Balantiocystis, Bolboporites, Cardiocystites, Cigara, Cryptocrinitidae, Cymbionites, Haimacystis, Hexedriocystis, Imbricata, Lapillocystites, Lichenoididae, Lingulocystidae, Llanocystis, Luhocrinus, Marjumicystis, Palaeocystitidae, Paracryptocrinites, Peridionites, Pilocystites, Polyptychella, Rhipidocystidae, Ridersiidae, Trachelocrinida, Ubaghsicystis
Subtaxa: Eocrinidae Lyracystidae Wudingeocrinus
Ecology: stationary epifaunal suspension feeder
Distribution:
• Marjumian of Canada (2: Alberta collections), the Czech Republic (2), United States (5: Utah)
• Cambrian of Canada (7: British Columbia), China (9), the Czech Republic (1), France (2), Mexico (2), Spain (5), United States (12: Arizona, California, Idaho, Nevada, Utah)
Total: 47 collections including 57 occurrences