PLATE CLIV 



Type Skull op Megacerops bucco 



Plate prepared under the direction of Professor Cope. One-half natural size. (See p. 544) 



Megacerops {" Symhorodon") bucco, type (Am. Mus. 6345a), Horsetail Creek, northeastern Colorado, Chadron formation. Basal 

 view. The dentition reveals generic aflBnity mth the specimen figured in Plate CLII. The enormous size of the zygomata 

 is alluded to in the name "bucco" ("one with swollen cheeks"). 



