Subphylum Eleutherozoa Bell 1891
Full reference: F. J. Bell. 1891. On the arrangment and inter-relations of the classes of the Echinodermata. The annals and Magazine of Natural History 8:206-215
Parent taxon: Echinodermata according to F. J. Bell 1891
Sister taxa: Argonevis, Aspidocrinites, Blastozoa, Camptostromoidea, Carpoidea, Cincta, Corneotuba, Cornuvacites, Crinozoa, Ctenocystoidea, Ctenoimbricata, Cyclocystoidea, Edrioasteroidea, Erinea, Fanerocoelia, Helicocystitidae, Helicoplacoidea, Holothuroidea, Homalozoa, Iheringiana, Limolepis, Nemotapis, Paracrinozoa, Pediculacaudinidae, Pelmatozoa, Radimonis, Scoteinocystis, Scutellidae, Scutellinidae, Stylophora, Tubocaudinidae, Venerella