†family Polydiadematidae Hess 1972 (sea urchin)

Echinoidea - Calycina - Polydiadematidae

Full reference: H. Hess. 1972. Eine Echinodermen-Fauna aus dem mittleren Dogger des Aargauer Juras. Schweizerische Paläontologische Abhandlungen 92:1-86

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

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

Subtaxa: none

Ecology: slow-moving low-level epifaunal omnivore

Distribution: there are no occurrences of Polydiadematidae in the database

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