ss 



OSBORN: OLIGOCENE, MIOCENE, PLIOCENE EQUID.E. 



(Osborn, 1918) The type (Yale Mus. 11281) includes p 2-4 , m 2 , and jaw with p2-m 2 . (1) The crowns are very low, 

 much as in Miohippus grmmarosor; (2) a rudimentary crochet appears on m 2 , none is apparent on the premolars; (3) 

 very little cement on the teeth, far less than on any species of Merychippus; (4) the sides of the teeth are smooth, resem- 

 bling those of Kalobatippus. 



Fig. 64. Type of Parahippus amis Marsh, Yale Mus. 11281. (Two upper figures) Superior grinding teeth, p^m 1 , 

 of the left side, m 3 reversed from the right side; external and crown views. (Two lower figures) Crown and side views of 

 fragmentary right mandible of type containing p2-m3, external and crown views. All figures natural size. Drawing by 

 B. Yoshihara. 



