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 | |||
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Era | Period | Age (millions of years) |
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|
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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