SOUTH DAKOTA SCHOOL OF MINES 149 



A List of the Fossil Mammals Found in the White River 



Badlands* 



LOWER OLIGOCENE (TITANOTHERIUM ZONE.) 



Carnivora (Fissipedia). 

 Canidae. 



Daphoenus dodgei Scott. Am. Phil. Soc, Trans., vol. 19, 

 1898, p. 362. Nw. Neb. 

 Felidae. 



Dinicitis fortis Adams. 

 Perissodactyla. 



Rhinocerotidae. 



Trigonias obsborni Lucas. U. S. Nat. Mus., Proc, vol. 23, 



1900, pp. 221-223. So. Dak. 

 Leptaceratherium trigondum Osborn and Wortman. Am. 

 Mus. Nat. His., Bull., vol. 6, 1894, pp. 201-203, (Acera- 

 therium). So. Dak. 

 Caenopus cf. platycephalus Osborn and Wortman. Am. Mus. 

 Nat. Hist., Bull., vol. 6, 189 4, p. 206, (Aceratherium). 

 So. Dak. 

 Caenopus mitis Cope. 

 Lophiodontidae. 



Colodon (Mesotapirus) occidentalis Leidy. 

 Equidae. 



Mesohippus proteulophus Osborn. 

 Mesobippus hypostylus. 



Mesohippus celer Marsh. Am. Jour. Sci., vol. 7, 1874, p. 

 251, (Anchitherium). Nw. Neb. 

 Titanotheridae (Brontotheridae). 

 Titanotherium prouti Leidy. 

 Titanotherium helocerus (Cope). 

 Titanotherium trigonoceras (Cope). 



Megacerops dispar (Marsh). Am. Jour. Sci., vol. 34, 1887, 

 p. 328, (Brontops). So. Dak. 



•Fossil forms too poorly preserved to admit of careful description and 

 naming have been omitted from this list. In compiling the list I have 

 made extensive use of Matthew's Faunal Lists of the Tertiary Mammalia 

 of the West as given in U. S. Geological Survey Bulletin No. 361, 1909. I 

 have made no effort on my own part to indicate the relative value of 

 synonyms where synonyms exist, but have endeavored to follow closely 

 the nomenclature as given by Matthew and by later authors. For addi- 

 tional convenient helpful literature the reader is referred to Hay's Biblio- 

 graphy and Catalogue of the Fossil Vertebrata of North America, U. S. 

 Geological Survey Bulletin No. 179, 1902, and to Palmer's Index Generum 

 Mammalium; a list of the Genera and Families of Mammals, U. S. De- 

 partment of Agriculture, Division of Biological Survey, 1904. 



Effort has been made to indicate the scientific paper in which each 

 form was first described and named, its year of publication, also the ap- 

 proximate locality within the area covered by the accompanying map of 

 the Black Hills region where the earliest or type specimen was found. 

 Such reference is omitted in a few instances where I have not had op- 

 portunity to examine the original publication. In a few instances fossils 

 found south of the Niobrara-Platte river divide and fossils found near 

 and to the east of Ft. Niobrara are included but generally such forms 

 are not considered as coming within the scope of this paper. So. Dak| 

 means in all cases the southwestern part of the state. Mauv. Terres 

 where used corresponds fairly well to the Big Badlands, hence refers gen- 

 erally to fossils from South Dakota. 



