370 



FOUNDATIONS OF BIOLOGY 



Loxodon 

 Africa 



Elephas 

 Asia 



Extinct 

 Elephas 



Extinct 'Extinct 



Elef^has Mastodon Dibelodon 



Paleomastodon 

 Africa and Asia 



Extinct 



Meriiherium 



Africa 



Meritherium 

 Africa 



t 



ideo-Sireni 



Proboscideo-Sirenian 

 ancestor 



Fia. 192. Chart of the phylqgeny of the Elephants, showing their geological 

 and geographical distribution. (After Lull.') 



