140 
CROCODTLJA 
Case. Shelf. No. 
D 3 
18—23 
24—45 
46—48 
49—63 
send downward, from the middle of the ante¬ 
rior edge of the cup on the ventral margin, 
a small process which impresses the next ver¬ 
tebra and suggests the intervertebral ossicle 
of some lizards, 
pectoral vertebrae, 
dorsal vertebrae, 
sacral vertebrae, 
caudal vertebrae. 
1 Steneosaurus from Peterborough (Porter Collection). 
2 specimen mounted in Poman cement. 
Pore part of mandible, showing symphysis 17 
inches long; in that distance are 27 teeth. The 
teeth are round in section, curved, and closely 
striated. Most of the bones of the head are im¬ 
bedded so as to show the palatal surface. Also 
four cervical vertebrae. 
Remains of a new Steneosaur (Porter Collection). 
Steneosaurus dasycephalus. 
4 the greater part of the skull anterior to the parietal 
bones. The surface is rough and wrinkled, 
basi-occipital bone, 
anchylosed atlas and axis. 
3 cervical vertebrae. 
12 dorsal vertebrae. 
3 sacral vertebrae. 
20 caudal vertebrae, 
right and left femora. 
PoSSILS FROM THE KlMERIDGE CLAY. 
On this Shelf are temporarily placed fossils from the 
Kimeridge Clay, and from the Chalk. 
os pubis, 
femur, 
tibia, 
3 tarsal bones, 
12 phalanges, 
of a Plesiosaur from the Kime¬ 
ridge Clay of Ely. 
