PLATE LXX. 



Cretaceous Dinosaurs. — Peedentata. 



CERATOPSID.E. 



Page. 



Fig. 1. Dermal spine of Trweralops Marsh ; side view 214 



Fh;. 2. The same spine; front view 214 



Fio. 3. The same; top view 214 



Fig. 4. Dermal plate of Triceratops; top view 214 



Fig. 5. The same plate; bottom view 214 



Fig. 6. The same ; side view 214 



Fig. 7. The same ; end view 214 



Fig. 8. Dermal plate of Triceratops; top view 214 



Fig. 9. The same plate; side view 214 



Fig. 10. The same ; bottom view 214 



All the above figures are one-eighth natural size. 



Fig. 11. Dermal ossification of Triceratops; side view; one-half natural size.. 214 



Fig. 12. The same ; .front view 214 



384 



