ANIMALS OF THE PAST 



349 



It is among the land reptiles that we find the hiigest 

 animals. Some of them were even larger than the elephant 

 and moved sluggishly. Many of them were herbivorous, 

 cropping the branches of trees, while others were carnivo- 



FiG. 2'Si). — Land reptile of lucsozoic times. 



rous, killing their fellows. Some of them had huge hind 

 limbs on which they walked, dragging an innnense tail 

 behind, and holding the small front legs up like a kangaroo 

 (Fig. 229). The one sho^^'n in Figure 230 walked on all four 



Fig. 2yi. — Flying reptile of mesozoic times. 



legs and was sontetimes sixt}' feet long. A species of land 

 reptile found in Colorado attained a length of seventy to 

 eighty feet. 



More curioi:s still were the fij'iug reptiles. These were a 



