82 



COPE 



The largest are the species of Paleophis Owen, which occur 

 in the Eocene of New Jersey and England ; they equaled 

 the largest existing pythons in dimensions (Fig. 29). The 

 venomous snakes appear in the Neocene In both Europe 

 and North America. 



The geological distribution of the superfamilies of snakes 

 is as follows : 



