Geologic Time Scale |
||||||
Eon |
Era |
Period |
Age (Myrs) |
Epoch |
||
Phanerozoic |
Cenozoic |
Quaternary |
0.01 |
Holocene |
||
1.8 |
Pleistocene |
|||||
Tertiary |
Neogene |
5.3 |
Pliocene |
|||
23.8 |
Miocene |
|||||
Paleogene |
33.6 |
Oligocene |
||||
54.8 |
Eocene |
|||||
65 |
Paleocene |
|||||
Mesozoic |
Cretaceous |
144 |
||||
Jurassic |
206 |
|||||
Triassic |
248 |
|||||
Paleozoic |
Permian |
290 |
||||
Pennsylvanian |
323 |
|||||
Mississippian |
354 |
|||||
Devonian |
417 |
|||||
Silurian |
443 |
|||||
Ordivician |
490 |
|||||
Cambrian |
543 |
|||||
Precambrian |
Proterozoic |
2500 |
||||
Archean |
3800 |
|||||
Hadean |
4600 |
|||||
Age of the Earth 4600 Myrs (4.6 Byrs)Source: Geological Society of America (1999) |
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Geology 103 Homepage / Science Division / BCC Home Page
Tuesday, April 8, 2008