PLATE IX. 



Jurassic Dinosaurs. — Theropoda. 



Ceratosairid^e. 



Page. 



Fig. 1. Atlas of Ceratosaurus nasicornis Marsh 159 



Fig. 2. Axis of same individual 160 



Fig. 3. Third vertebra of same 160 



a, side view; ft, front view; c, posterior view; d, top view; e, inferior view. 



Fig. 4. Sixth vertebra of same ; side vie w 160 



Fig. 5. Dorsal vertebra of same ; side view 160 



Fig. 6. Fifth caudal vertebra of same, with chevron in natural position ; side 



view 160 



All the figures are one-sixth natural size. 

 262 





