Full reference: H. Kozur and H. Mostler. 1989. Echinoderm remains from the Middle Permian (Wordian) from Sosio Valley (western Sicily). Jahrbuch der Geologischen Bundesanstalt 132:677-685
Parent taxon: Echinodermata according to H. Kozur and H. Mostler 1989
Sister taxa: Arkarua, Asterozoa, Blastoidea, Blastozoa, 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
Subtaxa: Tubocaudina
Type: Tubocaudina