Holland : Crocodile From Montana. 



283 



processes it shows the articulating surfaces for the ribs. It is a 

 very massive bone and the dorsal spine is broad above, being greatly 



Fig. 2. Anterior view of seventh (?) dorsal vertebra of D. hatcheri. \ nat. 



size. 



thickened transversely for attachment to adjacent structures. The 

 postzygapophyses do not look as strongly outwardly as in the recent 

 crocodilia, the under surfaces lying at their outer extremities nearly 



Fig. 3. Posterior view of seventh (?) dorsal vertebra of D. hatcheri. 



\ nat. 



size. 



in the same plane as the upper surface of the transverse processes. 

 Three views of the vertebra are given in Figures 1-3. 



Dimensions. 



Extreme width from tip to tip of transverse processes. 680 mm. 



Height from bottom of centrum to tip of spine 310 



Extreme length across zygapophyses 180 



Length of centrum at middle 140 



Length of centrum along floor of neural canal 125 



Vertical diameter of centrum in front 122 



Transverse diameter of centrum in front 122 



Vertical diameter of centrum behind no 



