SMITHSONIAN EXPLORATIONS, I93O 



37 



■'1 V -■-" " ' ~» 



Fig. 29. — The fossil bone deposit from opposite side of small canyon. 



Fig. 30.— Fossil bones in situ. At left center is a skull and jaws of a horse, 

 Plesippus shoshoncnsis, still articulated with the entire neck and the anterior 

 portion of the thorax. 



