58 



STRUCTURE OF THE VERTEBRATES 



The breeding habits are rather consistent, all turtles laying 

 their eggs in the sand and depending on the sun's heat to hatch 

 them. There is no evidence of care of the young, the newly 

 hatched animal having to depend upon its own resources for food 

 and protection. 





2^^ 



Seymouria (Primitive Extinct Reptile) 

 Reconsitruction 



i 



Sea Turtle 



Fig. 20. Anapsid Reptiles. Sej-mouria (at top) represents the most primi- 

 tive reptiles. The turtles and tortoises are specialized representatives of 

 the Sub-class Anapsida, 



