166 



Annals of the Carnegie Museum. 



Plate XLVI. 



Fig. I. Prothyracodon obliquidens. 



C. M. No. 3201. 

 Prothyracodon obliquidens. 

 Prothyracodon obliquidens. 

 Prothyracodon obliquidens. 

 Prothyracodon obliquidens. 

 Prothyracodon obliquidens. 



C. M. No. 3199. 

 Prothyracodon obliquidens. 

 Prothyracodon obliquidens. 

 Prothyracodon obliquidens. 



C. M. No. 2942. 

 Prothyracodon uintense, 



C. M. No. 2990. 

 Prothyracodon uintense. 

 Prothyracodon uintense. 

 Prothyracodon uintense. 

 Prothyracodon uintense. 

 Prothyracodon uintense. 

 Prothyracodon uintense 



C. M. No. 2990. 

 All figures one-half natural size except Fig 



Skull and lower jaws, from the side. 



Fig. 10 



Fig. II. 

 Fig. 12. 

 Fig. 13. 

 Fig. 14. 

 Fig. 15. 

 Fig. 16. 



Manus, dorsal face. C. M. No. 2942. 

 Pisiform, dorsal face. C. M. No. 2942. 

 Humerus, anterior face. C. M. No. 2942. 

 Scapula, proximal end. C. M. No. 2942. 

 Metatarsals III & IV, dorsal face. 



Pes, tibial face. C. Al. No. 3199. 



Pes, dorsal face. C. M. No. 3199. 



Radius and ulna, anterior face. 



paratype. Radius and ulna, ulnar face. 



Tibia, anterior face. 

 Mc. IV,, dorsal face. 

 Mt. Ill, dorsal face. 

 Mt. IV, dorsal face. 



C. M. No. 2990. 

 C. M. No. 2990. 

 C. M. No. 2990. 

 C. M. No. 2990. 



Median phalanx, dorsal face. C. M. No. 2990. 

 Proximal phalanx, dorsal face. 



I, which is one-third of nature. 



