FIG. 48. SKULL OF THE GIGANTIC THERIOMORPH CARNIVOROUS REPTILE 



INOSTRANSEVJA. 

 From Northern Russia. (Length of skull, 2 feet.) Permian or Triassic age. 



This animal was probably as large as a rhinoceros. (From Sir Ray 



Lankester's Extinct Animals.) 



FIG. 49. PROBABLE APPEARANCE OF THE THERIOMORPH REPTILE 



DlMETRODON. 



From the Permian of Texas. It was the size of a large dog. (From Sir Ray 

 Lankester's Extinct Animals.) 



