836 
Eucrotaphus. Mesoreodon. 
1024. t Eucrotaphus, Leidj, 1860; Cope, 1884. 
Oreodon, p., Leid}^ 1869, Marsh, 1873; Eporeodon, Marsh, 1875. 
5171. f Jacksoni, Leidy, Proc. Ac. Philad., 1850, 
p. 92; Anc. Fauna Nehr., 1853, p. 56, 
pl. 7 ; Cope, Proc. Amer. Phil. Soc., 1884, 
p. 517. 
hullatus, Leidy, Ext. Mam. Fauna, 1869, 
p. 106; Scott, Moi^ph. Jahrb., 1890, p. 339 
(Eporeodon) ; Osb. et W ortm., Bull. Am. 
Mus., 1894, p. 218 (Oreodon). 
occidentalis, Marsh, Amer. Journ. Sc., 
1873, V, p. 409; 1875, IX, p. 249 et 260; 
Cope, Bull. Geol. Surv., V, p. 59. 
fMiocaen. med. 
America sept., 
Oregon (John Duy). 
> 
h. — pacificus, Cope, Proc. Am. Phil. Soc., 
1884, p. 519. 
Oregon, Nebraska 
(John I)ay et White 
River). 
c. — leptacanthus. Cope, 1. c., 1884, p. 519. 
Oregon (John Day). 
5172. ftrigonocephalus, Cope, Pal. Bull., N‘’38; 
Proc. Amer. Phil. Soc., 1884, p. 514. 
fMiocaen. med. 
Oregon. 
5173. f major, Leidy, Anc. Fauna Nebr., 1853, fMiocaen. med. 
p. 65, pl. 4; Proc. Ac. Philad., 1853, p. 398; Dakota et Nebraska. 
1866, p. 164; 1857, p. 89; Ext. Mam. 
Faun., 1869, p. 99, pl. 7 ; Marsh, Am. 
Journ., 1875, p. 250; Osb. et Wortm., 
Bull. Am. Mus., 1894, p. 218, fig. D. 
b. — longifrons. Cope, Proc. Amer. Phil. 
Soc., 1884, p. 520. 
Oregou. 
1025. f Mesoreodon, Scott, 1893. 
5174. f chelonyx, Scott, Amer. Natur., 1893, 
p. 661; Trans. Am. Phil. Soc., XVII, 1893, 
p. 126, pl. 3, 4, 5, 6. 
fMiocaen. sup. 
America sept.. 
Montana (Deep 
River). 
5175. f intermedius, Scott, Am. Natur., 1893, fMiocaen. sup. 
p. 661 ; Trans. Am. Phil. Soc., 1893, p. 145, Montana, 
pl. 5. 
