DACF Home → Bureaus & Programs → Maine Geological Survey → Explore Maine Geology → Fossils → Remains of Life → Fossils in Bedrock → Geologic Time Scale
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. |
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| 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