PLATE 38 



TYPE SKELETON OF PARAHIPPUS PAWN I EN SIS ATAVUS OSBORN. 



All figures one-half natural size. 



This animal is selected as the type of a subspecies with the idea that it may be ancestral to the species P. pawnicnsis 

 Gidley, Middle Miocene. Note the separate ulna, characteristic of Parahippus. 



Upper Harrison, near Agate, Sioux Co., Nebr. Lower Miocene Parahippus pawniensis atavus Osborn, type, Am. Mus. 



14233, occiput, portion of atlas, four cervical verte- 

 bra?, humerus, ulna, radius, complete fore foot, femur, 

 portions of tarsus. 



See also carpus of same type skeleton figured in 

 Plate 39, Fig. 9. 



298 



