Blue boxes indicate time periods for which Maine has a fossil record.
Fossils from the Holocene and Pleistocene are preserved in sediments.
Fossils from the Cambrian through Devonian Periods are preserved in bedrock.
|
|
| Geologic Time Scale |
|---|
|
| Era | Period | Age
(millions of years) |
|
| CENOZOIC | Holocene |
| 0.01 |
| Pleistocene |
| 1.8 |
| Tertiary |
| 65 |
| MESOZOIC | Cretaceous | | |
| 146 |
| Jurassic |
| 208 |
| Triassic |
| 245 |
| PALEOZOIC | Permian |
| 286 |
| Pennsylvanian |
| 325 |
| Missippian |
| 360 |
| Devonian |
| 417 |
| Silurian |
| 440 |
| Ordovician |
| 505 |
| Cambrian |
| 545 |
Last updated on October 6, 2005
