Geologic Time Table - General View

                   GEOLOGIC TIME TABLE
                      GENERAL VIEW

Millions of               ERA               PERIOD
 years ago

   4600               Precambrian        Precambrian

Precambrian era lasts from 4600 million years ago to 
570 million years ago, a span of over four billion years. 

    600
    550              Palaeozoic            Cambrian
    500                                   Ordovician
    450                                    Silurian
    400                                  Devonian (395)
    350                                Carbinoferous (345)
    300                                     Permian
    250               Mesozoic             Triassic
    200                                  Jurassic (180)
    150                                 Cretatious (136)
    100               Cenozoic         Tertiary (65)
PRESENT +                             Quarternary (1.8)
A detailed view is also available.