The Echinoid Directory

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Triadocidaris cf venusta (Munster, 1841); St Cassian Formation, Carnian, Upper Triassic, Milieres, St Cassian, Italy. From Kier, P.M. 1977. Triassic echinoids. Smithsonian Contributions to Paleobiology 30, 1-88 (pl. 6, fig. 7). Apical view.

Diameter of test 6.4 mm.