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EARTH SCIENCE

Platte Canyon High School
Bailey, Colorado

Time Scale

GEOLOGIC TIME SCALE

Jurassic

after Harland et al., 1982

  =========================================================
Period Epoch Age Ma age Comments
      144  
Jurassic Malm
J3
Tithonian 150  
Kimmeridgian 156  
Oxfordian 163  
Dogger
J2
Callovian 169  
Bathonian 175  
Bajocian 181  
Aalenian 188  
Lias
J1
Toarcian 194  
Pliensbachian 200  
Sinemurian 206  
Hettangian 213