Extinct 

 Reptiles 



a 



.J 



H 



a. 



Carnivora 



Man 



Pithecanthropus 

 Primates 



Lemurs 



Ungulates 



Rodents 



Whales (?) o, 



Frogs "^ 



Salamanders 



Bony Fishes 

 (Cod) 



Sturgeons, etc. 



Sharks 



Amphioxus 



Chart III. Genealogical Tree of Vertebrates. 



217 



