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Precambarian- When earth’s atmosphere formed

Mesozoic- Ended with a massive impact

Paleozoic- When oxygen-breathing organisms first thrived

Cenozoic- Began about 65 million years ago

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More answers

What happened during which era

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Wiki User

10y ago
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Twitter PrcWrld

Lvl 1
4y ago
Precambrian- When Earth’s atmoshpere formed

Precambrain- when earth formed

Mesozic- the age of dinosaurs

Paleozoic- When most of our limestone and coal formed

Cenozoic- the era of hmans

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SARAH TREVINO

Lvl 2
3y ago
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Bob Turn

Lvl 1
2y ago
Thank you!
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