208 SATTROPTERYGIA. 



C. osooniensis. The dimensions of the centrum are : — length 

 0,045 (1-75 inches), height 0,054 (2-12 inches), width 

 2*55 inches ; the height from the base of the neural 



Fig. 68. 



Cimoliosaurus (cf.) eurymerus. — 1, anterior aspect; 2, right lateral aspect; 

 S, prezygapophysis ; 4, neural aspect of dorsal vertebra ; from the Oxford 

 Clay of Oxfordshire. {After Phillips.) 



canal to the summit of the spine being 0,121 (4*75 inches). 

 Except for its superior size this specimen cannot be dis- 

 tinguished from the type dorsals of C. ooconiensis. The 

 specimen is adult. Purchased, 1858. 



33289. Eight associated dorsal vertebrae of a young individual of 

 this or the next species ; from the Oxford Clay of Wey- 

 mouth. The neural arches are separate from the centra. 

 In one specimen the dimensions of the centrum are :- — 

 length 0,025 (0-86 inch), height 0,030 (1-16 inches), width 

 0,035 (1-36 inches). Purchased, 1858. 



46487. An imperfect vertebra probably belonging to the lumbar 

 region ; from the Oxford Clay of Chippenham, "Wiltshire. 



Cunnington Collection. 



