Helicocystitidae - Helicocystitidae
Full reference: A. B. Smith and S. Zamora. 2013. Cambrian spiral-plated echinoderms from Gondwana reveal the earliest pentaradial body plan. Proceedings of the Royal Society B: Biological Sciences 280(1765)
Parent taxon: Echinodermata according to A. B. Smith and S. Zamora 2013
Sister taxa: Asterozoa, Blastozoa, Camptostromoidea, Cincta, Crinoidea, Ctenocystoidea, Ctenoimbricata, Cyclocystoidea, Discoidea, Echinoconus, Echinozoa, Edrioasteroidea, Eleutherozoa, Helicoplacoidea, Holothuroidea, Homoiostelea, Homostelea, Iheringiana, Mesocrinus, Paracrinozoa, Pediculacaudinidae, Pelmatozoa, Peripneustes, Scoteinocystis, Scutellidae, Scutellinidae, Semperitidae, Stylophora, Tubocaudinidae
Subtaxa: Helicocystis
Distribution:
• Cambrian of Morocco (3 collections)
Total: 3 collections each including a single occurrence