Parent taxon: Echinodermata according to R. L. Parsley and Y.-L. Zhao 2006

Sister taxa: Arkarua, Asterozoa, Blastoidea, Camptostromoidea, Coronata, Crinoidea, Ctenocystoidea, Ctenoimbricata, Cyclocystoidea, Cystoidea, Diploporita, Discoidea, Echinoconus, Echinozoa, Edrioasteroidea, Eleutherozoa, Graciacystis, Helicoplacoidea, Holothuroidea, Homoiostelea, Homostelea, Iheringiana, Macrocystellidae, Parablastoidea, Paracrinoidea, Pediculacaudinidae, Pelmatozoa, Peripneustes, Rhombifera, Scoteinocystis, Scutellidae, Scutellinidae, Semperitidae, Stylophora, Tubocaudinidae

Subtaxa: Eocrinoidea

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Ecology: stationary epifaunal suspension feeder