Parent taxon: Echinodermata according to S. Zamora et al. 2022
See also Sepkoski 2002
Sister taxa: Argonevis, Aspidocrinites, Blastozoa, Camptostromoidea, Carpoidea, Cincta, Corneotuba, Cornuvacites, Crinozoa, Ctenocystoidea, Ctenoimbricata, Cyclocystoidea, Echinosphaera, Eleutherozoa, Erinea, Fanerocoelia, Helicocystitidae, Helicoplacoidea, Homalozoa, Iheringiana, Limolepis, Nemotapis, Paracrinozoa, Pediculacaudinidae, Pelmatozoa, Radimonis, Scoteinocystis, Scutellidae, Scutellinidae, Stylophora, Tubocaudinidae, Venerella
Subtaxa: Aragocystites Camptostroma Cyathocystida Cyathothecidae Edrioasterida Edrioblastoida Hemicystitidae Isorophida Isorophina Isorophinidae Kailidiscus Pyrgocystidae Stromatocystitida Stromatocystitidae Yorkicystitidae
Ecology: stationary low-level epifaunal suspension feeder