Parent taxon: Inadunata according to D. F. Wright et al. 2017
See also Ausich 1986, Ausich 1998, Ausich et al. 1998, Ausich and Copper 2010, Ausich et al. 2015, Ausich et al. 2007, Ausich et al. 2018, Donovan 1984, Donovan 1986, Donovan 1992, Frest et al. 1979, Mao et al. 2018, Rozhnov 2016, Sepkoski 2002, Webster and Lane 1987, Webster and Rakhmonov 2009, Webster et al. 2009 and Webster and Webster 2012
Sister taxa: Cladida, Dicirrocrinus, Disparata, Fistulata, Larviformia, Merocrinidae, Metabolocrinidae, Paractocrinidae, Passalocrinus, Pentamerocrinidae, Poteriocrinidae, Thuringocrinus
Subtaxa: Allagecrinacea Allagecrinoidea Alphacrinidae Anomalocrinacea Athenacrinidae Aureocrinus Belemnocrinoidea Brutopisocrinus Calceocrinacea Calceocrinida Changninocrinus Cincinnaticrinacea Claviculacrinus Eocicerocrinus Eustenocrinida Gongrocrinus Heracrinus Heterocrinacea Heterocrinidae Heterocrinoidea Homocrinacea Homocrinida Junocrinus Macnamaratylus Maennilicrinida Myelodactylacea Myelodactylida Paradoxocrinidae Pariocrinus Perittocrinacea Perritocrinus Pisocrinacea Pisocrinida Pisocrinoidea Regnellicrinus Resetocrinus Tetragonocrinida Tornatilicrinidae Westheadocrinus Xisoallogecrinus