I^LA.TIil II. 



DINOCERATA. 

 Skull of DiNOCKRAS MiRABiLE, Marsh. 



One-fourth Natural Size. Pai^e. 



Skull; lateral view, seen from the left, 11 



n — Nasal bone. 

 'pm — Premaxillary. 

 c — Canine tooth. 

 m —Maxillary hone. 

 m' — Maxillary protuberance. 

 I — Lachrymal bone. 

 / —Frontal. 

 tna — Malar. 

 pi — Palatine. 

 2)t — Pterygoid. 

 as ■ — Alisphenoid. 



s — Post-glenoid process of squamosal. 

 hs — Basisphenoid. 

 ho — Basioccipital. 

 o — Occipital condyle. 

 p — Posterior crest. 

 p' — Posterior protuberance. 



