The Echinoid Directory

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Megapneustes grandis Gauthier 1899; Eocene, Egypt. Apical view, from Fourtau, R. 1899. Revision des Echinides Fossiles de L'Egypt. Memorires presentes a L'Institute Egyptien 3 (8), 605-740 pls. 1-4 (plate 2, fig 6).

Length of test 116 mm.