Matthew, William Diller, 1871-1930.2005-10-062005-10-061902http://hdl.handle.net/2246/1489p. 311-316 : ill. ; 24 cm.Includes bibliographical references.509543 bytesapplication/pdfen-USQH1 .A4 vol.16, art.23, 1902Hypisodus minimus.Skull.Hypertragulidae.Artiodactyla, Fossil -- Colorado.Artiodactyla, Fossil -- North America.Mammals, Fossil -- Colorado.Mammals, Fossil -- North America.Paleontology -- Oligocene -- Colorado.Paleontology -- Tertiary -- North America.Paleontology -- Colorado.Paleontology -- North America.The skull of Hypisodus, the smallest of the Artiodactyla ; with a revision of the Hypertragulidae. Bulletin of the AMNH ; v. 16, article 23.text