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δA² History
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The first period of the Paleozoic, the Cambrian, marks the explosion of life on Earth.
Crystalline basement
| Paleozoic (billion years) |
|
Cambrian |
Ordovician |
Silurian |
Devonian |
Carboniferous |
Permian |
| -542 |
-485 |
-443 |
-419 |
-359 |
-299 |
-252 |
The Paleozoic began 542 million years ago and lasted about 300 million years.
It is made up of six periods : the Cambrian, the Ordovician, the Silurian, the Devonian, the Carboniferous and the Permian.
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