898 The Condylarthra. [ 
generic reference certain. The others are mostly kne 
tions—three from the former 
six from the latter. 
9 
a 
=| 
> 
= 
i 
° 
= 
wn 
3 
P 
Q 
5 
reached the ground, w 
FIG. 19. — Phenacodus primævus; first and fifth projected 
cast of brain case of specimen figured . ike the 
in Plate xx1x, one-half nat. size. Fig, and posteriorly, like se 
a, left side ; 4, superior face; z, inferior claws of the hogs. The 
ace, riginal, from W; 5. vier than £ 
Geol. Surv, Terrs., Vol. 11, F, V, Hay- longer and heavier è 
den in charge, any of the living hoofed 
resembling in its proportions that of the cats. The eye 
small, and the muzzle, though long, was singularly soft 
Whether this soft part was pierced by valvular nostrils, e 
hippopotamus, or was produced into a short prosor 
saiga or in the tapir, cannot be certainly ascertained, bu 
are indications of the insertion of important cartilag 
muscles, on the superior faces of the premaxillary bo 
Plate xxvit1). ; 4 
The animal was probably omnivorous in its diet. > ; 
furnished with any weapons of offence or defence pe! k 
the osseous system, so that it must have sought ie n 
The well developed muscular insertions of its limbs, an® ’ 
igrade character of its step, indicate that it may have ™ 
siderable speed. 3 
Its bones have been found wherever the beds of the 
epoch occur, but most abundantly in Northern Wyo 
the Wind River valley Mr. Wortman brought two k 
and ten from the Big Horn basin. A figure of he T 
