32 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I3I 



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1881. The systematic arrangement of the order Perissodactyla. Proc. Amer. 

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1908. A revision of American Eocene horses. Bull. Amer. Mus. Nat. Hist., 



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1909. Faunal horizons of the Washakie formation of southern Wyoming. 



Bull. Amer. Mus. Nat. Hist., vol. 26, art. 3, pp. 13-23- 

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1896. Recent and fossil tapirs. Amer. Journ. Sci., ser. 4, vol. i, pp. 161-180, 

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1955. An upper Eocene fauna from the Sage Creek area, Beaverhead 

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1953. Faunal lists of vertebrates from Uinta Basin, Utah. Guide Book, 5th 

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1947. Tertiary geology of northwestern Wind River Basin, Wyoming (ab- 

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1939- Geology along the southern margin of the Absaroka Range, Wy- 

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1871. Notice of some new fossil mammals from the Tertiary formation. 



Amer. Journ. Sci. and Arts, vol. 2, pp. 35-44. 

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 Matthew, William D. 



1909. Faunal lists of the Tertiary Mammalia of the West. U. S. Geol. Surv. 

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 OsBORN, Henry F. 



1895. Fossil mammals of the Uinta Basin. Expedition of 1894. Bull. Amer. 



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 1902. American Eocene Primates, and the supposed rodent family, Mixo- 

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 1913. Eonwropus, an American Eocene chalicothere. Bull. Amer. Mus. Nat. 

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 Peterson, Olaf A. 



1919. Report upon the material discovered in the upper Eocene of the 

 Uinta basin by Earl Douglas in the years 1908-1909, and by O. A. 

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