Family Diadematidae Gray 1855 (sea urchin)

Echinoidea - Diadematoida - Diadematidae

Full reference: J. E. Gray. 1855. Catalogue of the Recent Echinida, or Sea Eggs, in the Collection of the British Museum. Part I. Echinida Irregularia. Woodfall & Kinder, London 1-69

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

See also Clark and Twitchell 1915, Fell 1966, Nisiyama 1966 and Philip 1963

Sister taxa: Ancylocidaris, Diadematoina, Endeodiadema, Engelia, Helodiadema, Heteropedina, Macrodiadema

Subtaxa: Australidiadema Centrostephanus Diadema Echinothrix Eodiadema Kierechinus Mesodiadema Palaeodiadema Pedinothuria Sierradiadema

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Ecology: slow-moving low-level epifaunal grazer

Distribution:

• Quaternary of Eritrea (1 collection), Jamaica (1), Japan (1)

• Pliocene to Pleistocene of Saudi Arabia (1)

• Miocene of Cuba (1), Germany (1), Spain (1), United States (1: California)

• Oligocene of Germany (2)

• Eocene of Somalia (1)

• Cretaceous of Antarctica (3), Belgium (1), France (1), Germany (1), the Netherlands (1), Spain (1), the United Kingdom (1)

• Jurassic of France (2), Switzerland (1), the United Kingdom (1), United States (1: California)

• Triassic of Hungary (1), Italy (1)

Total: 27 collections each including a single occurrence

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