Evolution of the Camels 



47 



Pletstoceng 



Recent 



Auchenia 

 (Llama) 



Skull 



Feet 



Teeth 



Pliocene 



Procamelus 



Neocene 



Oixgocenc 



Pocbrotherium 



Protylopus 



Eocene 



Fig. io. Descent with Modification Among Camels 



From the records left in the rocks ancestors of the present day camel reveal 

 themselves as successively larger animals, with consistent changes in the feet, the 

 teeth, and other parts of the body. After Scott. 



