PLATE LXVII. 



Cretaceous Dinosaurs.— Predentata. 



C'EKATOPSID.'E. 



Page. 

 Fig. 1. Pelvis of Sterrholophus flabellntus Marsh; side view; one- twelfth natu- 

 ral size 213 



a, acetabulum; il, ilium; is, ischium; p, pubis. 

 Fig. 2. Pubis of Triceratopn prorsus Marsh; inside view; one-eighth natural 



size 213 



Fig. 3. The same pubis; showing postpubic process; inferior view 213 



Fig. 4. The same; outside view 213 



a, proximal end; b, face for ilium; c, postpubic process; d, distal end. 

 378 



