Fig. 20. Fossil Ginkgo leaves. (| nat. size.) 



A. Tertiary, Island of IMull. 



B. Wealden, North Germany (after Schenk). 



C. Jurassic, Jajian (after Yokoyama). 



D. Jurassic, Australia (after Stirling). 



E. Jurassic, Siberia (after Heer). 



F. Jurassic, Turkestan. 



G. Lower Cretaceous, Greenland (after Heer). 

 H. Jurassic, California (after Fontaine). 



I. Jurassic, Yorkshire. 



J. Jurassic, N.E. Scotland (after Stopes). 



K. Wealden, Franz Josef Land (after Nathorst). 



L. Rhaetic, South Africa. 



M. Jurassic, Spitzbergen (after Heer). 



