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Diadema (sea urchin)

Echinoidea - Diadematoida - Diadematidae

PaleoDB taxon number: 32854

Alternative spelling: Cidarites (Diadema)

Parent taxon: Diadematidae according to A. B. Smith 2009

Sister taxa: Centrostephanus, Echinothrix, Eodiadema, Kierechinus, Mesodiadema, Palaeodiadema, Pedinothuria

Subtaxa: Diadema depressum, Diadema pseudodiadema, Diadema subangulare

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Ecology: slow-moving low-level epifaunal grazer