Simpson, George Gaylord, 1902-2005-10-062005-10-061929http://hdl.handle.net/2246/31339 p. : ill. ; 23 cm.Includes bibliographical references.834232 bytesapplication/pdfen-USQL1 .A436 no.387, 1929Probathyopsis praecursor.Mammals, Fossil -- Clarks Fork Region (Mont. and Wyo.)Mammals, Fossil -- Wyoming -- Park County.Amblypoda.Molars -- Evolution.Teeth, Fossil.Paleontology -- Paleocene -- Clarks Fork Region (Mont. and Wyo.)Paleontology -- Paleocene -- Wyoming -- Park County.Paleontology -- Clarks Fork Region (Mont. and Wyo.)Paleontology -- Wyoming.A new Paleocene uintathere and molar evolution in the Amblypoda. American Museum novitates ; no. 387text