SYSTEMATIC CATALOGUE 



EOCENE VERTEBRATES OF WYOMING. 



Although we have endeavored to make this catalogue as complete and 

 accurate as possible, we feel that errors and omissions are, from the nature of 

 the case, unavoidable. The material is so vast and heterogeneous, and is so 

 much scattered throughout numberless reports, bulletins, journals, and the 

 like, that its correct compilation is attended with great difficulties. However, 

 a beginning is here made which will render subsequent work easier. Owing 

 to the great number of discoveries which have since been made, Dr. Leidy's 

 excellent catalogue of iSyr covers now but a very small portion of the ground. 



In this list we have made no attempt to decide disputed questions of 

 priority and synonymy. Doubtless, many of the genera and species here given 

 will be found to be synonyms of American or European forms ; but at present 

 these questions cannot be settled. Where synonyms are given, they are the 

 determinations of the original describer indicated in subsequent publications 



MAMMALIA. 



PRIMATES. 



NoTHARCTUS, Lcidy. Pr. Ac. Nat. Sc, 1S70, p. 114 ; Cont. to Ext. Vert. Faun, 

 p. 86 ; Ann. Rep. U. S. Geol. Survey of Terrs., 1871, p. 364. 

 A^. tenebrostis, Leidy, loc. cit. 



