CAMBRIDGE UPPER GREENSAND. 
27 
Case. Comp. Tablet. Specimen. 
h 
43 
1—3 
h 
44 
1 
h 
45 
1—4 
h 
46 
1,2 
h 
47 
1—3 
h 
48 
1—8 
h 
49 
1 
h 
50 
1—3 
h 
51 
1—4 
h 
52 
1—3 
h 
53 
1 
k 
54 
1 
h 
55 
1—4 
h 
56 
1 
h 
57 
. 1 
h 
58 
1 
h 
59 
1 
h 
60 
1 
h 
61 
1—5 
h 
62 
1 
h 
63 
1 
h 
64 
1 
h 
65 
1,2 
h 
66 
1,2 
h 
67 
1,2 
large massive mandibles, 
massive mandible, 
broad small mandibles, 
mandibles broad in symphysis, 
similar mandibles narrow in symphysis, 
compressed mandibles with smooth palatal sur¬ 
face. 
the largest mandible in the collection, 
mandibles of a compressed type, 
similar mandibles with a slight external mesial 
groove. 
mandibles indicative of a broad short head. 
small massive mandible. 
large mandible. 
massive mandibles. 
sharper massive mandible. 
massive mandible. 
malar bone of a large skull. 
snout of a small Rhinochelys. 
slender mandible. 
small mandibles. 
narrow mandible. 
broad small mandible. 
mandible with small symphysis. 
mandibles of a narrow compressed type. 
broad, small, incurved mandibles. 
mandibles with ridges on the palatal surface. 
J i 1 1—47 cervical vertebrae, most of which display ordi¬ 
nary Chelonian characters. 
i 2 1—26 dorsal vertebrae; the dorsal vertebrae of Chelo- 
nians and Dinosaurs approximate, so that 
it is often difficult to distinguish between 
them. 
i 3 1—14 caudal vertebrae. 
i 4 1—25 modifications of humerus. No. 25 exhibits in 
the proximal end of the humerus a conical 
epiphysis like that seen in Plesiosaur. 
