The Echinoid Directory

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Thylechinus said (Peron & Gauthier, in Cotteau, Peron & Gauthier, 1881); figured syntype. Middle Dordonian (Upper Campanian-Maastrichtian), Upper Cretaceous, Near the road to Medjes from Msilah, Algeria. Apical view (female) (from Cotteau et al. 1881, pl. 19).

Diameter of test 36 mm.