The Echinoid Directory

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Glyptodiadema cayluxense Cotteau, 1878; Holotype.  University of Lyon Collections EM40237. T. resupinata Zone, Lower Lias, Lower Jurassic, Village of Poumarede, near Caylus, Tarn et Garonne, France.  Apical view.

Diameter of test 17.7 mm.