THE PINE LIZARD AND ITS ALLIES 



367 



Tricer'atops, with formidable armature. One species reached 

 a length of more than twenty feet, and stood eight feet 

 high. An American scientific expedition into Asia has re- 

 cently unearthed many interesting fossils. Among the 

 most noteworthy finds was the discovery of dinosaur eggs. 



Fig. 192. Restoration drawings of bird-like reptiles, or pterosaurs 1 



Some of the ancient reptiles (the flying lizards, or ptero- 

 saurs, Fig. 192) were capable of flight by means of skin 

 stretched between the front and hind limbs and tail. Most 

 of the bones were hollow and the skull was quite bird-like. 

 Reptiles which are apparently related to the alligators and 

 crocodiles, and to the turtles and tortoises, have also been 

 found in the rocks of this period, so that these groups are 

 very ancient. Most of the lizards and snakes belong to a 

 later day. 



1 From Seeley's Dragons of the Air. 



