EXTINCT ANIMALS 



great reptiles disappeared and the great mam- 

 mals gradually appeared and took their place. 

 Some of the forms assumed by the great 



J- •:; 

 eg s- 



•- 03 



c c 



O O 



-P c 



^ 2 



is 



5:h 



o 



M 



Dinosaurian reptiles are not unlike the forms 

 of the small scaly lizards of to-day (see Figs. 

 137, 138, 139, 140) ; but on the whole the Dino- 

 saurs were more like mammals in shape, stand- 



194 



