BLTTT. 



Middle Eocene 

 Extending from 2,720,000 till 2,150,000 years before the 

 present time. 

 7—12 The Parisian „ Stage" with 6 oscillations. 



Upper Eocene 

 Extending from 2,150,000 years till 1,810,000 years before thfr 

 present time. 



13—16 The Bartonian „ Stage", with 4 oscillations. 



Upper Tertiary, Cycle II 

 Oligocene 



Extending from 1,810,000 years till 1,160,000 years before the 

 present time. 

 l'_4' The Ligurian „ Stage", with 4 oscillations. 

 5'— 7' The Tongrian „Stage", with 3 oscillations. 



Miocene 



Extending from 1,160,000 years till 700,000 years before 

 the present time. 

 8' The Aquitanian Stage? 

 9' The Langhian Stage. 

 10' The Helvetian Stage. 

 11' The Tortonian Stage. 

 12' The Messinian Stage. 



Pliocene 



Extending from 700,000 years till 350,000 years before 

 the present time. 

 13' The Materin Stage. 

 14' The Plaisancian Stage. 

 15' The Astian Stage. 

 16' The Arnusian Stage. 



