†unranked clade Vetulocystida Shu et al. 2002
Full reference: D.-G. Shu, S. Conway Morris, J. Han, Z.-F. Zhang, and J.-N. Liu. 2002. Ancestral echinoderms from the Chengjiang deposits of China. Nature 430:422-428
Parent taxon: Ambulacraria according to D.-G. Shu et al. 2002
Sister taxa: Cambroernids, Echinodermata, Hemichordata
Subtaxa: Vetulocystidae
Distribution: