†family Heterodiadematidae Smith and Wright 1993 (sea urchin)

Echinoidea - Calycina - Heterodiadematidae

Full reference: A. B. Smith and C. W. Wright. 1993. British Cretaceous echinoids. Part 3, Stirodonta 2 (Hemicidaroida, Arbacioida and Phymosomatoida, Part 1). Monographs of the Palaeontographical Society 147(593):199-267

Parent taxon: Phymosomatoida according to A. Kroh and A. B. Smith 2010

See also Smith 1995

Sister taxa: Boletechinus, Cottaldia, Cotteaudia, Diplopodiidae, Dixieus, Echinocyphus, Emiratiidae, Gauthiosoma, Leioechinus, Murravechinus, Phymosomatidae, Polydiadematidae, Trochotiara, Zeugopleurus

Subtaxa: none

Type: Heterodiadema

Ecology: slow-moving low-level epifaunal omnivore

Distribution: there are no occurrences of Heterodiadematidae in the database

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