142 Mr. H. G. Seeley on Prof. Owen's 
Buckland's inference that the dorsal vertebre are crocodilian 
nous epiphyses come away from the dorsal centrum, and 
leave flat or slightly concave articular ends—a condition cha- 
racteristic of some dorsal vertebre of Cretaceous birds. ‘The 
proccelous articulation can only be a mark of crocodilian affinity 
in a crocodile. à 
On the sacrum it is remarked, * With all the evidence that 
ike the Dinosauria and Dic i 
porns avian affinity or for building thereon a derivative 
The eee sacrum has nothing in common with that of 
any true (7. e. living) reptile. There is no evidence on record 
have Tineppeatets as in Dimorphodon. 
Bi ese considerations it seems to me that, without de- 
viating from fact, Prof. Owen might have given to his account 
