Geological
Time Scale
|
Era |
Period |
Epoch |
Million Years |
|
Cenozoic |
Quaternary |
Holocene |
0.01 |
|
Pleistocene |
1.6 |
||
|
Tertiary |
Pliocene |
6.3 |
|
|
Miocene |
23 |
||
|
Oligocene |
36.6 |
||
|
Eocene |
53 |
||
|
Paleocene |
66 |
||
|
Mesozoic |
Cretaceous |
|
135 |
|
Jurassic |
|
205 |
|
|
Triassic |
|
250 |
|
|
Permian |
|
290 |
|
|
Paleozoic |
Carboniferous |
|
355 |
|
Devonian |
|
410 |
|
|
Silurian |
|
438 |
|
|
Ordovician |
|
510 |
|
|
Cambrian |
|
570 |
|
|
Precambrian |
|
|
4,600 |