Archive image from page 221 of Dinocerata a monograph of Dinocerata : a monograph of an extinct order of gigantic mammals dinoceratamonogr00mars Year: 1886 Figure 171.—Skull of Dinoceras cuneum, Marsh (No. 1042); seen from above. One-eighth natural size. Another specimen (number 1207, figure 170) has the siiout very tapering in front, and the nasal protuberances small, though rather prominent. The median suture is entirely obliterated, and the prenasals, if present, are thoroughly co-ossified with each other, and with the nasa-l bones. The maxillary prominences are rounded, and not very div
Archive image from page 221 of Dinocerata a monograph of Dinocerata : a monograph of an extinct order of gigantic mammals dinoceratamonogr00mars Year: 1886 Figure 171.—Skull of Dinoceras cuneum, Marsh (No. 1042); seen from above. One-eighth natural size. Another specimen (number 1207, figure 170) has the siiout very tapering in front, and the nasal protuberances small, though rather prominent. The median suture is entirely obliterated, and the prenasals, if present, are thoroughly co-ossified with each other, and with the nasa-l bones. The maxillary prominences are rounded, and not very divergent. The parietal protuberances are connected by a transverse ridge. The zygomatic process of the squamosal is not excavated for the posterior end of the malar. The type specimen (number 1042) of this species was secured in May, 1875, by Messrs. S. Smith and J. Heisey, near Haystack Mountain, about sixty-five miles east of Green River, Wyoming. The specimen consists of a skull, with a nearly complete series of dorso-lumbar vertebrae, sacrum, pelvis, etc. The second specimen (number 1207), consisting of portions of the skull and vertebrae, was found by J. W. Chew and the author, in 1873, near Big Bone Buttes, Wyoming. The geological horizon is in the Bridger beds of the Middle Eocene. The only known specimens are in the Yale Museum.
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