16 
Dinosauria — Anchisauridce , etc. 
Teratosau- 
rus. 
Megralosau- 
rus. 
Table-case, 
No. 9. 
Wall-case, 
No. 4. 
Laelaps. 
Megralosau 
rus. 
Wall-case, 
No. 7. 
Numerous other fine Dinosanrian remains are to he seen in 
the collection, but as we do not know the teeth of man} o esc 
huge reptiles, we cannot speak positively as to their habi s. 
is certain, however, that, from the Trias to the Chalk, tv o groups 
have existed, one having a carnivorous dentition, and the other 
being herbivorous. Teratosaurus of the Trias of btuttgar , 
Ceratosaurus and Allosaurus of the American. Jurassic roc s, 
Megalosaurus and Compsognathus of the Oolitic and Wealclen 
strata were all carnivores. i 
The actual counterpart and casts of the maxilla and 
premaxilla and a portion of the ramus of the lower jaw 
of Meqalosaurus from the Inferior Oolite, Sherborne, Dorset, 
may be seen in the Wall-case. Of Polacanthus, Omo- 
saurus , Ii ylceosaurus, and Cetiosaurus* we . have no direct 
dental evidence, but judging from a comparison of the other 
portions of their skeletons, they have been refened to t e 
family of the Stegosauridse. No doubt, as amongst the Mam- 
malia at the present day, the majority were vegetable- feeders, 
and the minority were predaceous in habit, ihe Cactaceous 
o-enus Lcelaps , and the Jurassic Ceratosaurus and Allosaurus 
were, in America, the representatives of the carnivorous 
Megalosaurus of our Secondary rocks. . . 
Many species of Lailaps have been identified, and a senes oi 
plaster-casts of bones of Lailaps aquilunguis are exhibited in 
tlio case. 
Anchisauridce. — The genus Anchisaurus has amphicoelous 
cervical vertebras, the pubis is rod-like, there are five digits in 
ihe manus and pes. The teeth are without serrations on the 
anterior border. LJpicawipodon (Fig. IS, a, b, c) is an allied 
genus from India. 
Fig. 18.— Fragment of mandible, A. lateral aspect; 71, posterior aspect; C, section of 
tooth of Epicampodon indicus (Huxley), from the Panchet beds (U. Trias), Lower 
Gondwanas of Bengal ; P, lateral aspect of tooth of Thecodontosaurus piatyodon 
(Riley & Stutchbury), Upper Trias, Bristol. 
* A single detached tooth has been found in the same quarry at Enslow 
Bridge, near Oxford, from which the bones of Cetiosaurus were obtained ; it 
is somewhat like that of Iloplosaunis. 
