254 



THE BATH OOLITE PERIOD. 



CHAP. 



head have yet been observed among- the fragments found at any 

 of the localities near Oxford. The tooth found at Kirtlington 

 Station quarry is like that of an iguanodon in general shape (as 

 far as can be known, one edge being broken), with a similar sweep 

 of the concave surface, seen in the Diagram, and corresponding 

 attenuation toward the edge. The edge is not serrated, but the 

 striae of accretion are so arranged as to suggest that it may have 

 been. The opposite face of the tooth is broken. 



Neck. No certain specimen of cervical vertebrae or of their pro- 

 cesses representing ribs has been recognized. 



Trunk. A considerable series of dorsal vertebrae and ribs, more 



Diagram LXXXVI. Dorsal, probably the fourth Vertebra of Ceteosaurus. 



Scale one-tenth of nature. 



i. Seen endways, in front. 2. Seen on the left side. d. Diapophysis. 



p. Parapophysis. z. Anterior zygapophysis. 



or less incomplete, from the anterior and middle parts of the series, 

 have been obtained from Kirtlington Station. The vertebrae have 

 undergone various degrees of compression and distortion in different 

 ways, so that it is only by examining many specimens that a con- 

 sistent general description can be formed. In some cases lateral com- 

 pression has produced an oval outline for the articular face, in other 



