Updated Geologic Time Chart
Based on International Stratigraphic Chart
International Commission on Stratigraphy
October 2003
| Eon
| Era
| Period
| Epoch
| Date
(Millions of years
before present)
|
| Phanerozoic
| Cenozoic
| Neogene
| Holocene
|
| Pleistocene
|
| Pliocene
|
| Miocene |
| Paleogene
| Oligocene
|
| Eocene |
| Paleocene |
| Mesozoic
| Cretaceous | End of Mesozoic 65.5 m.y.
|
| Jurassic |
| Triassic |
| Paleozoic
| Permian | End of Paleozoic 251 m.y.
|
| Carboniferous | Pennsylvanian |
| Mississippian |
| Devonian |
| Silurian |
| Ordovician |
| Cambrian |
| Proterozoic |
Precambrian
(87% of
geologic
time scale)
| End of Precambrian 542 m.y. |
| Archean |
Tertiary and Quaternary eliminated
Based on International Stratigraphic Chart, October 2003.
http://www.stratigraphy.org/chus.pdf
See also
American Geological Institute Interactive Geologic Time Scale
Return to Historical Geology Home Page
Geologic Time Chart created by Pamela J. W. Gore
pgore@gpc.edu
Georgia Perimeter College, Georgia
October 15, 1996
Modified April 16, 1997
Modified April 2, 1999 - beginning of Cambrian changed
Updated November 26, 2003 - Tertiary and Quaternary eliminated
Updated Septembe 10, 2008
Based on International Stratigraphic Chart, October 2003.