Gidley, James Williams, 1866-1931.2005-10-062005-10-061906http://hdl.handle.net/2246/1476p. 385-388 : ill. ; 24 cm.559279 bytesapplication/pdfen-USQH1 .A4 vol.22, art.22, 1906Archaeohippus.Archaeohippus ultimus.Horses, Fossil -- Oregon.Mammals, Fossil -- Oregon.Teeth, Fossil -- Oregon.Teeth, Fossil -- California.Paleontology -- Miocene -- Oregon.Paleontology -- Oregon.A new genus of horse from the Mascall beds ; with notes on a small collection of equine teeth in the University of California. Bulletin of the AMNH ; v. 22, article 22.New genus of fossil horsestext