PLATE C 



Type Skull of Brontops robustus 



Plate prepared under the direction of Professor Marsh. One-fourth natural size. (See p. 494) 



Yale Mus. 12048, Dry Creek, 5 miles northeast of Chadron, Nebr. (J. B. Hatcher), Chadron formation, probably upper levels. 

 The palatal view shows well the extreme breadth, which is characteristic of this species. The dentition is shown also in 

 Plate CI. 



