Ctenocystoidea - Ctenocystoida - Ctenocystidae

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

Parent taxon: Ctenocystidae according to I. A. Rahman and S. Clausen 2009

Sister taxa: none

Subtaxa: Ctenocystis utahensis

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Type: Ctenocystis utahensis