128 The Badland Formations of the Black Hills Region 



Dicotylidae (Tagassuidae) . 



Perchoerus probus Leidy. Acad. Nat. Sci., Phila., Proc, 



vol. 8, 1856, p. 165. Mauv. Terres. 

 Perchoerus nanus (Marsh). Am. Jour. Sci., vol. 48, 1894, 



ip. 271, (Thinohyus) . So. Dak. 

 An th r a c o th e r i i da e . 



Anthracotherium curtum (Marsh). Am. Jour. Sci., vol. 47, 



1894, p. 409, Heptacodon. So. Dak. 

 Hyopotamus (Ancodon) ro stratus Scott. Acad. Nat. Sci., 



Phila., Jour., vol. 9, 1894, Appendix, p. 536. So. Dak. 

 LeptochoerMae. 



Leptochoerus specitabilis Leidy. Acad. Nat. Sci., Phila., 



Proc, vol. 8, 1856, p, 88. Mauv. Terres. 

 Leptochoerus gracilis Marsh. Am. Jour. Sci., vol. 48, 1894, 



pp. 2 71-2 73. So. Dak. 

 Stlbarus quadricuispis (Hatcher). Carnegie Mus., Ann., vol. 



1, 1901, pp. 131-134, (Leptochoerus). 

 Oreodontidae ( Agrloeh oer idae ) . 

 Agriochoerus antiquus Leidy. 

 Agriochoerus latifrons Leidy. Ext. Mam. of Dak. and Neb., 



18 69, pp. 135-141. Ma'uv. Terres. 

 Oreodon (Merycoidodon) culhertsoni (Leidy). 

 Oreodon (Merycoidodon) gracilis Leidy. 

 Oreodon (Merycoidodon) ap. cf. bullatus Leidy. 

 Hypentragulidae. 



Hypertragulus caicaratus Cope. 



Leptomeryx evansi Leidy. Acad. Nat. Sci., Phila., Proc, vol. 



6, 1853. p. 394. Mauv. Terres. 

 Hypisodus minimus Cope. 

 Cam el idae. 



Poebroitherium wilsoni Leidy. Acad. Nat. Sci., Phila., Proc, 

 , vol. 3, 1847, pp. 322-326. Mauv. Terres. 

 Poebrotherium labiatum Cope. 

 Poebrotherium eximium Hay. U. S. Geol. iSurv., Bull. No. 



179, 1902, p. 67. This wa0 first described by Wortman 



as Poebrotherium wilsoni Leidy. See Am. Mus. Nat. Hist., 



Bull., vol. 10, 1898, pp. 111-112. So. Dak. 

 Paratylopuis primaevus Matthew. Am. Mus. Nat. Hist., Bull., 



vol. 20, 1904, pp. 211-213. So. Dak. 



UPPER OLIGOCENE. 

 (PROTOCERAS AND LOWER LEPTAUCHENIA ZONES.) 



Carnivora (Fissipedia). 

 Canidae. 



Cynodictis temnodon Wortman and Matthew. Am. Mus. Nat. 

 Hist., Bull. .vol. 12, 1899, p. 130. 

 Felidae. 



Dinictis bombifrons Adams. 



iHoplophoneuis insolens Adam^. Am. Jour. Sci., vol. 1, 1896, 



p. 429. So. Dak. 

 Eusmilus dakotensis Hatcher. Am. Nat., vol. 29, 1895, 

 pp. 1091-1093. So. Dak. 



