Echinoidea taxon details
original description
(of Diadema superbum Agassiz, 1840 †) Agassiz, L. (1840). Description des Échinodermes fossiles de la Suisse. Partie 2, Cidarides. <em>Mémoires de la Société helvétique des Sciences naturelles.</em> 4, 107 pp., pls. 14-23., available online at https://www.biodiversitylibrary.org/page/13210968 page(s): 23; pl.17, figs 6-10 [details]
new combination reference
Smith, A.B. (2016). British Jurassic Regular Echinoids. <em>Monograph of the Palaeontographical Society.</em> 170 (646): 69-176, pls 42-82. page(s): 83; pl. 46: figs 1-5 [details]
From editor or global species database
Diagnosis A genus of Diplopodiidae with a deeply invaginated peristome that is smaller than the apical disc in diameter. Ambulacral plating on oral surface acrosaleniid, with successive small primary tubercles separated by a transverse row of tertiary tubercles. Pore-pairs uniserially arranged from apex to peristome. [details]
Fossil range Upper Callovian Athleta Zone, of Stanton Harcourt, Oxfordshire, Weymouth Member, Lower Oxfordian Mariae Zone, of St Ives, Cambridgeshire, and Lower Oxfordian Cordatum Zone of Warboys, Cambridgeshire in England; Lower Oxfordian Clay in France [details]
Stratigraphy Oxford Clay Formation [details]
Type locality Middle Oxfordian marls of Mont Vohayes, Switzerland [details]
Type material Holotyp: M92
in the Agassiz comparative collection, Museum d'Histoire naturelle de Neuchâtel [details]
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