†class Ctenocystoidea Robison and Sprinkle 1969

Ctenocystoidea

Full reference: R. A. Robison and J. Sprinkle. 1969. Ctenocystoidea: new class of primitive echinoderms. Science 166:1512-1514

Parent taxon: Echinodermata according to R. A. Robison and J. Sprinkle 1969

See also Sepkoski 2002

Sister taxa: Asterozoa, Blastozoa, Camptostromoidea, Cincta, Crinoidea, Ctenoimbricata, Cyclocystoidea, Discoidea, Echinoconus, Echinozoa, Edrioasteroidea, Eleutherozoa, Helicocystitidae, Helicoplacoidea, Holothuroidea, Homoiostelea, Homostelea, Iheringiana, Mesocrinus, Paracrinozoa, Pediculacaudinidae, Pelmatozoa, Peripneustes, Scoteinocystis, Scutellidae, Scutellinidae, Semperitidae, Stylophora, Tubocaudinidae

Subtaxa: Ctenocystoida Etoctenocystis

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Distribution:

• Ordovician of the United Kingdom (1 collection)

• Marjumian of the Czech Republic (2)

• Cambrian of Australia (1), the Czech Republic (8), France (1), Spain (1), United States (5: Idaho, Utah)

Total: 19 collections including 24 occurrences

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