Osborn, Henry Fairfield, 1857-1935.Wortman, Jacob Lawson.Peterson, Olof August, 1865-1933.2005-10-062005-10-061893http://hdl.handle.net/2246/791p. 311-330, [2] leaves of plates : ill. ; 24 cm.Includes bibliographical references (p. 330).The multituberculates. Plagiaulacidae Gill. Genus Ptilodus Cope. Genus Meniscoëssus Cope -- The trituberculates. Stage of dental evolution. Analysis of Marsh's types. Superior and inferior dentition -- Faunal relations of the Laramie mammals.1890621 bytesapplication/pdfen-USQH1 .A4 vol.5, art.17, 1893Mammals, Fossil -- West (U.S.)Paleontology -- Cretaceous -- West (U.S.)Paleontology -- West (U.S.)text