EES203: Geologic Time Scale

Downloadable in PDF format both as a complete time scale to study and a blank time scale to practice (they will print much better than this web page).

 
EON
ERA
MYBP
PERIOD
EPOCH
MYBP
 
Phanerozoic
Cenozoic
Quaternary
 Holocene
 
0.01
  Pleistocene
 
1.8
1.8
 
Neogene

Tertiary
(traditional)

 Pliocene
 
5.3
  Miocene
 
24
24
 
Paleogene
 Oligocene
 
34
  Eocene
 
55
  Paleocene
 
65
 
Mesozoic

Cretaceous
 
144
 

Jurassic
 
206
 

Triassic
 
251
 
Paleozoic

Permian
 
290
 

Carboniferous

 Pennsylvanian
(traditional)
 
323
  Mississippian
(traditional)
 
354
 

Devonian
 
417
 

Silurian
 
443
 

Ordovician
 
490
 

Cambrian
 
543
 
Precambrian
Proterozoic

Neoproterozoic

 Ediacaran
635
 
 
   
 
900
 

Mesoproterozoic

    
 
1500
 

Paleoproterozoic

    
 
2500
 
Archaean
      
 
3800
 
Hadean
      
 
~4600
 
   
 
 

Dates from 1999 DNAG time scale, excepting the base of the Ediacaran (Knoll et al., 2006) and the Permian-Triassic boundary (Bowring et al., 1998).

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