1858. Mammals. Part I. General report upon the zoology of the several Pacific railroad routes. Repts., explorations and surveys for a railroad route from the Mississippi River to the Pacific Ocean. Washington, D. C., vol. 8, pp. xlviii + 757, 35 figs., 43 pls., July 14. BARBOUR, H., and SCHULTZ, C. B. 1937. An early Pleistocene fauna from Nebraska. Amer. Mus. Nat. Hist. Novit., 942:1-10, September 10. BERRY, E. W. 1937. Tertiary floras of North America. Bot. Rev., 3:31-46. BLACK, C. C. 1961. Rodents and lagomorphs from the Miocene Fort Logan and Deep River Formations of Montana. Postilla, Yale Peabody Museum, 48:1-20, 6 figs., January 16. BRANDT, J. F. 1855. Beiträge zur mähern Kenntiss der Säugethiere Russlands. Acad. Imp. des Sciences St. Petersburg, 7:79-336, 11 pls. BROWN, B. 1908. The Conard fissure, a Pleistocene bone deposit in northern Arkansas with description of two genera & 20 new species of mammals. Mem. Amer. Mus. Nat. Hist., 9:157-208, 2 pls., 3 figs. 1912. Brachyostracon, a new genus of glyptodont from Mexico. Bull. Amer. Mus. Nat. Hist., 31:167-177, August 2. CHANEY, R. W. 1947. Tertiary centers and migration routes. Ecol. Monog., 17:139-148. COOK, H. J., and COOK, M. C. 1933. Faunal lists of the Tertiary Vertebrata of Nebraska and adjacent areas. Nebraska Geol. Surv., Paper No. 5:49. COPE, E. D. 1878. Description of new extinct Vertebrata from the upper Tertiary and Dakota formations. Bull. U. S. Geol. and Geog. Surv., 4:379-396. 1884. The White River and John Day faunae, pp. 759-1002, pl. 64, figs. 1-9. _In_ The Vertebrata of the Tertiary formations of the west. Book I. Part second. Rept. U. S. Geol. Surv. Terr. (F. V. Hayden), vol. 3. 1889. The vertebrate fauna of the Equus beds. Amer. Nat., 23:160-165. COUES, E. 1877. Monographs of North American Rodentia. No. 8, Saccomyinae, pp. 483-542, and No. 10, Geomyinae, pp. 601-629, pl. 7, August. DALQUEST, W. W. 1962a. A record of the giant bison (Bison latifrons) from Cooke County, Texas. Texas Jour. Sci., 13:41-44, March. 1962b. The Good Creek Formation of Texas, and its fauna. Jour. Paleont., 36:568-582. 1964. A new Pleistocene local fauna from Motley County, Texas. Trans. Kansas Acad. Sci., 67:499-505, 4 figs., December 11. 1965. New Pleistocene Formation and local fauna from Hardeman County, Texas. Jour. Paleont., 39:63-72, 2 figs., January. DICE, L. R. 1925. Rodents and lagomorphs of the Rancho La Brea Deposits. Carnegie Inst. Washington Publ., 349:119-130. DAVIS, W. B.