Smith, James Perrin, 1864-1931. Upper Triassic marine invertebrate faunas of North America / by James Perrin Smith. - Washington : U.S. Gov't. Print. Off., 1927. - iv, 262 p. : tables, maps ; 29 cm. At head of title: Department of the Interior. Includes bibliographical references. LCCN: gs 27000350 Subjects--Topical Terms: Invertebrates, Fossil--North America.Paleontology--Triassic.Animals, Fossil--North America. LC Class. No.: QE75 / .P9 no. 141 Gov. Doc. Class. No.: I 19.16:141