Division of time scale

Division of time scale

° To simply the huge amount of geological information the time period of the earth's history has been broken down into section which are known as Eons, Geological Eras, Periods and Epochs.

1. PRECAMBRIAN SUPER EON 

  a. Hadean Eon

  b. Archean Eon

  C. Proterozoic Eon

2. PALEOZOOC ERA

  a. Cambrian period

  b. Ordovician period

  c. Silurian period

  d. Devonian period

  e. Carboniferois period

  f. Permian period 

3. MESOZOIC ERA

  a. Triassic period 

  b. Jurassic period 

  c. Cretaceous period 

  

4. CENOZOIC ERA

  a. Paleocene epoch

  b. Eocene epoch

  c. Oligocene epoch

  d. Miocene epoch

  e. Pliocene epoch

5. NEOZOIC ERA

  a. Pleistocene epoch

  b. Holocene epoch

  c. Anthropocene epoch