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Verlie Corwin ∙
it got cooler
Pangaea broke up in the Mesozoic Era.
epoch
A Fraud
Eon, Era, and Epoch: APEX :D
Several periods of mass extinction
No, the earth wasn't around 7 billion years ago. Earth formed about 4.6 billion years ago.
It must have lived for a short geologic period of time.
Dense forest developed
Shrinking of the polar ice caps
volcanic outgassing increased the greenhouse effect
The current era today is Cenozoic
The formation of the ozone layer