PLATE XV 



Described 

 on Page 



Melanodon goodrichi Simpson. 76 



Fig. I. Upper specimen: Right upper jaw with M*"®, Y.P.M. No. 13748. 

 Lower specimen: Right upper jaw with M^'*, Y.P.M. No. 13749- 

 Both crown views. X 6 diam. 



Fig. 2. Right upper jaw with M* "^ crown view. X 12 diam. Type. Y.P.M. 

 No. 13738. 



Malthacolestes osborni Simpson. 82 



Fig. 3. Right upper jaw with M^"*, crown view. X 15 diam. Type. Y.P.M. 

 No. 13751- 



200 



