Parent taxon: Crinoidea according to J. J. Sepkoski 2002
Sister taxa: Abbreviatocrinites, Acariaeocrinus, Acrocrinidae, Articulata, Asperocrinidae, Balearocrinus, Becharocrinus, Bihaticrinus, Camerata, Cladida, Comatulida, Communicrinus, Coronocrinus, Craspedocrinus, Cyclocaudex, Cyclocrista, Cyclocyclicus, Cyclomischidae, Cycloscapus, Cyrtocrinida, Dazhucrinus, Dicirrocrinus, Diplobathrida, Disparida, Dolichocrinus, Dronovicrinus, Dulanocrinus, Dwortsowaecrinus, Echmatocrinida, Edriocrinus, Encrinida, Eucalyptocrinus, Exaesiodiscidae, Flexibilia, Flexicrinus, Floricyclidae, Floripila, Flucticharacidae, Flucticharax, Gemmacrinus, Glyphidocrinus, Helicocrinus, Hemistreptocrinus, Heterostelechus, Hybocrinida, Inadunata, Katarocrinus, Kojvicrinus, Kstutocrinidae, Lamprosterigma, Laubeocrinus, Leptocarphiidae, Lichenocrinus, Lotocrinus, Malovicrinus, Mastocrinus, Millericrinida, Mitrocrinus, Mooreanteris, Multifidocrinus, Nodolanx, Nonparactocrinus, Ordinacrinus, Pachyocrinus, Pandocrinus, Paractocrinus, Parorthocrinus, Passalocrinus, Pentacrinus, Pentagonocyclicus, Pentagonopterix, Pentaridica, Phillipsocrinus, Philocrinus, Pinegicrinus, Poteriocrinus, Preptopremnum, Qingyanocrinidae, Salairocrinidae, Salairocrinus, Schyschcatocrinidae, Solanocrinus, Spriocrinus, Stenocrinidae, Tantalocrinidae, Taranshicrinidae, Tatjanicrinus, Tetractocrinus, Tetractocrinus, Tetragonocyclicus, Tetralobocrinus, Tetramerocrinites, Thuringocrinus, Torrocrinus, Trochocrinites, Tytthocrinus, Uintacrinida, Webericrinus, Zeravschanocrinus
Subtaxa: Bathycrinus, Bourgueticrinus, Conocrinus, Democrinus, Dunnicrinus, Monachocrinus, Porphyrocrinus
Ecology: stationary upper-level epifaunal suspension feeder