92 
CROCODILIA FROM THE 
Case. Shelf. 
82 c 
CROCODILIA* * 
FROM THE KIMERIDGE CLAY, CHIEFLY OF ELY. 
Exhibited in Cabinet lxxxil, Shelves c, d> e, f- 
Specimen. 
1 
four dorsal vertebrae of a small ? Dakosaurus t 
from the Kimeridge Clay of Cottenham. The 
vertebrae are biconcave, with the margin of 
the centrum adjoining the intervertebral cup 
wrinkled. 
Associated bones of Dakosaurus lissoceplialus from Ely. 
A smaller and probably immature example of the same species. 
2 two cervical, one dorsal, and one caudal vertebrae, 
nine fragments of dorsal and cervical ribs, 
posterior dorsal vertebra. 
? scapula. 
?coracoid. 
an undetermined sub-quadrate bone, 
fragments of right and left premaxillary bones, 
left nasal bone and five fragments of jaw. 
five fragments of jaw bones, 
frontal bone, 
heel of mandible. 
c 
c 
c 
c 
c 
c 
c 
c 
c 
c 
c 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
d 
1 skull of Dakosaurus lissocephalus from the Ki¬ 
meridge Clay of Ely. It displays ex-occipital, 
supra-occipital, squamosal, quadrate, quadrato- 
jugal, epiotic, alisphenoid, parietal, frontal, post¬ 
frontal, malar, pre-frontal, and nasal bones. 
If the vertebrae in the series c.2—12 are 
parts of the same animal with the head-bones, 
then to this individual must have belonged 
vertebrae like the series c.l. The external 
* It may be doubtful whether the term Crocodilia can be so far extended 
as to include the transitional group to which these remains belong. The 
Teleosauria have strong affinities with Plesiosaurs and Dinosaurs. 
+ The generic distinction between Dakosaurus and Steneosaurus remains to 
be established. The form of the skull in these specimens is that of Cuvier's 
Crocodile, ‘ Tete it museau plus allongd.’ The specimens in the Oxford Museum 
which are referred to Steneosaurus have the same form of skull. 
