CHART OF GEOLOGIC TIME AND FORMATIONS 



The following chart will serve to indicate the geologic position of the 

 strata from which the insect remains described in Chapter IV were obtained. 



ERAS 



PERIODS 



FORMATIONS 



Recent or Human 

 Pelistocene or Glacial 



Pliocene 

 Miocene 

 Oligocene 

 Eocene 

 Cretaceous J Upper 



o 

 o 



< 



Ah 



Jurassic 



Triassic 



Permian 



[[Lower 

 Upper Oolite 

 Middle Oolite 

 Lower Oolite 

 Upper Lias 

 Lower Lias 

 Keuper 

 Muschelkalk 



i Bunter 



I Upper 



I Lower 



Malm 

 Dogger 



Germany 



Germany 



Carboniferous < 



Devonian 



Silurian 



Cambrian 



Upper Carboniferous 

 Subcarboniferous 



Upper 



Middle 



Lower 



Proterozoic 

 Archeozoic 



(84) 



