«: 



Recent 

 Prehistoric 



Postglacial 



(Severe climate) 



IV Glacial 



(Steppe climate) 

 3rd Interglacial 



III Glacial 



2n(i Interglacial 



II Gl^CIAL 



1st Interglacial 



I Glacial 



Geologic and Climatic 



Stages 



of ] 



III Pure Forest 

 Meadow Fauna 



wes- 

 to t 

 Faij 



II "Reindeer Period/' 



Tundra, Steppe, 



Alpine and Meadow 



Fauna 



P€ 



pr 

 ei 

 G 



Ci 



I I Mingled African- 

 P^ Asiatic and 



Forest-Meadow Faunas 



11 



7J 



1—1 



a 

 a 



to 

 rf 

 P: 



Faunas 



Habitats 



Diagram illustrating thesis covered all except 

 the areas close to the ice. Thteppe forms covered 

 Europe. 



'^ Hycena spelwa and Felis Jeo spelwa, i 



