Berta, Annalisa. New specimens of the Pinnipediform Pteronarctos from the Miocene of Oregon Annalisa Berta. - Washington, D.C. Smithsonian Institution Press 1994. - iii, 30 p. ill. 28 cm. - Smithsonian contributions to paleobiology no. 78 . Includes bibliographical references (p. 30). LCCN: 93034257 Subjects--Topical Terms: Pteronarctos--Oregon.Paleontology--Oregon.Paleontology--Miocene. LC Class. No.: QE701 QE882.P5 / .S56 no. 78 Dewey Class. No.: 560 s 569/.74