CREATION BY EVOLUTION 



the time in which the flowering plants first appeared, when 

 the transformation was made from a Jurassic to an Upper 

 Cretaceous and essentially modern flora. In the varying 



Fig. 9. — Recent Japanese cycads, showing the character of the 

 vegetation in Jurassic time. (After Wieland.) 



proportions of its main types of plants, the Lower Cre- 

 taceous flora discloses local differences of soil, altitude, 

 humidity, and precipitation. The dominant late Jurassic 

 types — the ferns, cycads, and conifers — continued without 

 • ' £168] 



