CHAPTER V 



THE GREAT EXTINCT REPTILES — DINOSAURS 

 FROM THE OOLITES — THE PARIASAURUS 

 AND INOSTRANSEVIA FROM THE TRIAS OF 

 NORTH RUSSIA AND SOUTH AFRICA — MARINE 

 REPTILES. 



IN the next two chapters I propose briefly 

 to bring before you a few examples 

 of extinct reptiles, birds and fishes, and to 

 take the very shortest glance at the host of 

 invertebrate shell-fish, insects, star-fishes and 

 such like extinct animals whose name is legion. 

 We will proceed at once to the reptiles. You 

 will see from the list of groups of reptiles which 

 I gave to you in a former chapter (p. 58) that 

 there are four big orders or groups of Hving 

 reptiles : (1) the Crocodiles ; (2) the Tortoises 

 (Chelonians) ; (3) the Lizards ; and (4) the 

 Snakes. The lizards and snakes are in their 

 real structure so much aUke that they are con- 



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