Bi(rdM M&mmalls 



Amphil^ani^ / 



.JZOA 

 oeba) 



Ancesrral plants 



ANCESTRAL CCELENTERATES 



ANCESTRAL PROTOZOA " 



Ancestral animal-plants — "^ 

 Primitive protoplasm 

 Fig. 13. A recent suggestion concerning the ancestral 

 relations within the animal kingdom. The circles in A 



