332 O. C. Marsh—The Order Theropoda. 
trenchant, indicating clearly the ferocious character of the 
animal when alive. ese teeth have the same general form 
as those of Megalosaurus, and the dental succession appears to 
be quite the same. 
_ Above the antorbital foramen on either side, is a high eleva- 
tion composed of the prefrontal bones. These protuberances 
would be of service in protecting the orbit, which they 
partially overhang. 
The orbit is of moderate size, oval in outline, with the apex 
mga is a pas hook, on the upper half of the outer sul — 
ace. Into this hook of the quadrate, a peculiar process of the 
strong, curved, transverse bone, which projects down 
below the border of the upper jaws, as shown in Plate Vill, 
figure 1, ¢. 
There is a very short, thin columella, which below is closely : E 
united to the pterygoid by suture, and above fits into asm 
depression of the post-frontal. 
he palatine bones are well developed and, after joining | 
the pterygoids, extend forward to the union with the vomey 
The latter are apparently of moderate size 
The pre-sphenoid is well developed, and has a long pointed © 
anterior extremity 
Mane 6 ote : 
The whole palate is remarkably open, and the Bi bones — 
P 
> 
composing it stand nearly vertical, as in the Sawropodd. 
} 
