Romer, Alfred Sherwood, 1894- Review of the Pelycosauria / by A. S. Romer and L. W. [!] Price. - New York : The Society, 1940. - x, 538 p. : ill., tables, plates. ; 25 cm. - Geological Society of America. Special papers, no. 28 . Includes bibliographical references (p. 476-485) Subjects--Topical Terms: Pelycosauria. Paleontology -- Permian. Paleontology -- Carboniferous. Dewey Class. No.: 568.1 ROM