The Echinoid Directory

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Pliolampas gauthieri (Cotteau, 1880); lectotype. Langhian, Middle Miocene, St. Restitut, Drome, France. From P. M. Kier. 1962. Revision of the cassiduloid echinoids. Smithsonian Miscellaneous Collections 144, (3), 262 pp. (text-fig. 162).