. FinuRE 195.—Skull of Ulntathermm rohmium, Leidy (type specimen), bottom view of back pan; of skull. /. foramen magnum; /'. oceipilal foramen; g. stylo-mastoid foramen; h foramen lacerum • i. vascular foramen in basisphenoid. One-fourlh naturnl size. Leidy, Proceedings of the Philadelphia Academy of ,tiiral Sciences, pp. 169, 241, 1872 American Journal of Science and Arts (;5), Vol. IV, p. 240, September, 1872. Extinct Vertebrate Fauna, pp. 93, 06, 333, 334, Plate XXV, Plate XXVI fio-s 1-8 Plate XXVII, tigs. 3(i-34, 1873. ' ^^ Cope, Proceedings of the Philadelphia Academy of Natural Scienc


. FinuRE 195.—Skull of Ulntathermm rohmium, Leidy (type specimen), bottom view of back pan; of skull. /. foramen magnum; /'. oceipilal foramen; g. stylo-mastoid foramen; h foramen lacerum • i. vascular foramen in basisphenoid. One-fourlh naturnl size. Leidy, Proceedings of the Philadelphia Academy of ,tiiral Sciences, pp. 169, 241, 1872 American Journal of Science and Arts (;5), Vol. IV, p. 240, September, 1872. Extinct Vertebrate Fauna, pp. 93, 06, 333, 334, Plate XXV, Plate XXVI fio-s 1-8 Plate XXVII, tigs. 3(i-34, 1873. ' ^^ Cope, Proceedings of the Philadelphia Academy of Natural Sciences, p. 102, March 1873- p. 295, for 1882, 1883. ' ' ' Hayden's Report TJ. S. Geological Survey for 1872, pp. 581, 583, 1873. American Naturalist, Vol. VII, p. 159, March, 1873; Vol. XVII, p. 68, January, 1883. Proceedings of the American Philosophical Society, Vol. XIII, pp. 62, 64, 1873. .Alarsh, American Journal of Science and Arts, Vol. V, p. 290, April, 1873. American Naturalist, Vol. VII, p. 147, March, 1873. Proceedings of the American Philosophical Society, Vol. XII, p. 578, 1872. Osborn, Scott and Speir, Palseontological Keport, 1877, pp. 62, 71, 82, 1878. Osborn, Memoir upon Loxolophodon and Uintatheriura, pp. 18, 28, 1881. Leidy (Uintamastix atrox).—Extinct Vertebrate Fauna, pp. 94, 107, 333, 1873. The type specimen of this species was collected iu 1872, by Drs. J. V. A. Carter and J. K. Corson, fifty miles east of Fort Bridg-er, Wyoming. The remains of this specimen consist of the cranial portion of a skull, with fragments of both jaws, and portions of limb bones. The geological horizon of this species is in the Bridger beds of the Middle Eocene. This type specimen is preserved in Prof Leidy's collection. ' Uinta, Indian name, and dijpiov, a wild beast.


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