Osborn, Henry Fairfield, 1857-1935.Wortman, Jacob Lawson.Matthew, William Diller, 1871-1930.Gidley, James Williams, 1866-1931.2005-10-062005-10-061904http://hdl.handle.net/2246/1515p. 167-179, [2] leaves of plates (1 folded) : ill. ; 24 cm.Includes bibliographical references.3923490 bytesapplication/pdfen-USQH1 .A4 vol.20, art.13, 1904Horses, Fossil -- West (U.S.)Horses, Fossil -- Saskatchewan.Mammals, Fossil -- West (U.S.)Mammals, Fossil -- Saskatchewan.Paleontology -- Oligocene -- West (U.S.)Paleontology -- Oligocene -- Saskatchewan.Paleontology -- West (U.S.)Paleontology -- Saskatchewan.text