Parent taxon: Eocrinoidea according to Y. Zhao et al. 2008
See also Nohejlová 2017, 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, Simonkovicrinus, Trachelocrinida, Ubaghsicystis
Subtaxa: Eocrinidae Lyracystidae Wudingeocrinus
Ecology: stationary epifaunal suspension feeder
Distribution:
• Ordovician of Czechia (2 collections)
• Cambrian of Canada (9: Alberta, British Columbia), China (10), Czechia (4), France (2), Mexico (2), Spain (4), United States (17: Arizona, California, Idaho, Utah)
• Solvan of Spain (1), United States (1: Nevada)
Total: 52 collections including 62 occurrences