THE AGE OF MAMMALS 



Lastly, we must not omit to mention that in the Old 

 World the first true apes, Oreopithecus and Dryopithecus^ 

 appeared. The first of these united some of the 

 characteristics of apes and monkeys; the second, about 

 the same size, was more closely related to the chimpanzee 

 and gorilla. 



268 



