GUIDE TO THE DEPARTMENT 
OF 
GEOLOGY AND PALAEONTOLOGY. 
Part II. 
REPTILIAN GALLERY.* 
This Gallery is devoted to the exhibition of the remains of Reptilian 
fossil Reptilia, a class which includes the Tortoises and Turtles, v^alPcase 
Snakes, Lizards, Crocodiles, and a large number of extinct No. 1. 
forms, the exact zoological position of many of which we can 
on ly judge by analogy. Like the Mammalia, the Reptilian class 
lived both on land and in the water ; some being evidently 
fitted for terrestrial locomotion by their well-developed legs ; 
others, as shown by their paddle-shaped limb-bones, must have 
passed their entire existence in the water. One group, now 
extinct, possessed, like the Bats and the Birds, the power of 
flight. 
Class 3.— REPTILIA. 
Order I. — PTEROSAURIA (Winged-Lizards). 
Fig. 1. — Restoration of Rharnphorhynchus Muensteri, Goldfuss (after Marsh) ; one-seventh 
natural size, from the Lithographic Stone, Eichstlidt, Bavaria. 
In Wall-case No. 1, and in Table-cases Nos. 1 and 2, are Pterodac- 
placed the fossil remains of this extinct group of “ Plying kyles. 
Lizards,” or Pterodactyles. These animals had the centra of ^ o al j' ^^’le 
the vertebrae hollow in front ; they possessed a broad sternum or cases’, Ncs. l 
“breast-bone,” with a median ridge or keel, similar to that of an d 2. 
birds; the jaws were usually armed with teeth fixed in sockets. 
The fore-limb had a short humerus, a long radius and ulna, and 
* Galleries 3, 4, and 5 on Plan facing p. 102. 
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