The history of life on Earth takes place over the last 3.5 billion years.
- The Precambrian represents the last part of Earth before the Phanerozoic Eon.
- The Precambrian is after the Cambrian, which was the first period of the Phanerozoic Eon.
- The oldest evidence of life on Earth is associated with Precambrian fossils similar to algae.
In conclusion, the history of life on Earth takes place over the last 3.5 billion years.
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