AS Bulletin American Museum of Natural History. [Vol. XXXIV, 
No. 16179 from a somewhat higher level in the Gray Bull beds of Clark 
Fork Basin agrees fairly well with the type but the size is somewhat larger, 
the lower molars more nearly equal, and p* has the posterior flange of the 
deuterocone more developed. It appears to be transitional to O. gulo. 
Fig. 42. 
Fig. 41. Oxyena equidens, lower teeth, psa—-me, crown and outer views, natural size. 
Type specimen, Clark Fork beds, Clark Fork Basin. 
Fig. 42, Ozxyena transiens, upper jaw of type specimen, natural size, occlusal and outer 
views. Sand Coulée beds, Clark Fork Basin. ; 
FY 
‘Fig. 43. Ozxyena transiens, lower jaw, outer and occlusal views, natural size. Type 
specimen, Sand Coulée beds, Clark Fork Basin. 
