Simpson, George Gaylord, 1902-Cope, E. D. (Edward Drinker), 1840-1897.2005-10-062005-10-061959http://hdl.handle.net/2246/249722 p. : ill. ; 24 cm.Includes bibliographical references (p. 21-22).3737747 bytesapplication/pdfen-USQL1 .A436 no.1957, 1959Mammals, Fossil -- San Juan Basin (N.M. and Colo.)Mammals, Fossil -- New Mexico.Paleontology -- Paleocene -- San Juan Basin (N.M. and Colo.)Paleontology -- Paleocene -- New Mexico.Paleontology -- San Juan Basin (N.M. and Colo.)Paleontology -- New Mexico.Geology, Stratigraphic -- Paleocene -- San Juan Basin (N.M. and Colo.)Geology, Stratigraphic -- Paleocene -- New Mexico.Geology -- San Juan Basin (N.M. and Colo.)Geology -- New Mexico.Fossil mammals from the type area of the Puerco and Nacimiento strata, Paleocene of New Mexico. American Museum novitates ; no. 1957text