Parent taxon: Crinoidea according to G. D. Webster et al. 2025
See also Ausich 1986, Ausich 1998, Ausich et al. 1998, Ausich and Copper 2010, Ausich and Cournoyer 2019, Ausich et al. 2018, Ausich and Roeser 2012, Ausich et al. 2007, Ausich et al. 2019, Brower et al. 2024, Cole et al. 2017, Guensburg and Sprinkle 2003, Haugh 1979, Mao et al. 2018, Scheffler 2021, Wachsmuth and Springer 1885, Webster et al. 1999, Webster et al. 2009, Webster and Webster 2012 and Wright et al. 2017
Sister taxa: Acariaeocrinus, Aethocrinea, Angulata, Asperocrinidae, Aspidocrinus, Balearocrinus, Baryschyr, Bystrowicrinus, Carpenterocrinus, Communicrinus, Conspectocrinus, Cyclocaudex, Cyclocharacidae, Cyclocrista, Cyclocyclicus, Cyclomischidae, Cycloscapus, Dazhucrinus, Dentiferocrinidae, Dentiferocrinus, Dicyclica, Dronovicrinus, Dulanocrinus, Dwortsowaecrinus, Echmatocrinida, Ellipsoellipticus, Entrochus, Entrochus rotiformis, Exaesiodiscidae, Flexicrinus, Floricrinus, Floricyclidae, Floripila, Flucticharacidae, Flucticharax, Forbesiocrinus siculus, Gasterometra, Gemmacrinus, Glyphidocrinus, Hemistreptocrinoidea, Heterostelechus, Kojvicrinus, Kstutocrinidae, Lamprosterigma, Leptocarphiidae, Lichenocrinus, Malovicrinus, Mastocrinus, Mooreanteris, Moscovicrinus, Multifidocrinus, Nollenbachblastus, Ordinacrinus, Pandocrinus, Pentacrinoidea, Pentagonocyclicus, Pentagonopterix, Pentaridica, Phialocrinus, Picteticrinus, Pinegicrinus, Preptopremnum, Protocrinoida, Protocrinoidea, Salairocrinidae, Salairocrinus, Schyschcatocrinidae, Stenocrinidae, Stukaliniidae, Tantalocrinidae, Taranshicrinidae, Tatjanicrinus, Tetragonocyclicus, Tetralobocrinus, Torrocrinus, Waikaripites, Webericrinus, Zeravschanocrinus
Subtaxa: Adelphicrinus Becharocrinus Cnemecrinus Coronocrinus Craspedocrinus Eknomocrinus Eucamerata Helicocrinus Hexacrinidae Katarocrinus Laubeocrinus Melocrinidae Mitrocrinus Phillipsocrinus Reteocrinidae Rhodocrinidae Tetramerocrinites Trochocrinites
Ecology: stationary upper-level epifaunal suspension feeder