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Pseudodiadema orbignyanum (Cotteau, 1851). University of Lyon, Palaeontological Collections EM40295 (Cotteau collection, figured 1882, Paleontologie francaise pl. 351, figs 5-7). Oral view. Lower Corallian, Oxfordian, Upper Jurassic, Druyes, Yonne, France.

Maximum axis  of test 47 mm.