PLATE XCVII 



Type Skull and Jaw of Brontops robustus 



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



Yale Mus. 1204S, Dry Creek, 5 miles northeast of Chadron, Nebr. (J. B. Hatcher), Chadron formation, probably upper levels. 

 Slight vertical crushing may have somewhat diminished the vertical diameters. The skull is relatively much shorter than in 

 Brontoiherium, and the occiput is not produced backward. 



