SMITHSONIAN EXPLORATIONS, I93I 



Fig. 14. — Collecting the skull and lower jaws of a creoclont mammal in the 

 Big Horn Basin. (Photograph by G. F. Sternberg.) 



Fig. 15. — Collecting a disarticulated skeleton of Coryphodon from the 

 Wasatch, Big Horn Basin, Wyo. (Photograph by G. F. Sternberg.) 



