PLATE XXI. 



PARIETAL ELEMENT OF CREST OF TYPE OF CERATOPS BELLI LAMBE. 



(See p. 96.) 

 After the originals by Lambe. 



Specimen No. 491, Canadian Geological Survey collection. 

 Fig. 1. Superior view. 

 Fig. 2. Inferior view. 



One-fourth natural size. 



240 



