newone6451 newone6451

12-01-2018
Geography

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What are the characteristics of past mass extinctions?

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afernandez21 afernandez21

15-01-2018

The Big Five extinction events
Ordovician-Silurian extinction.
Late Devonian extinction.
Permian-Triassic extinction.
Triassic-Jurassic extinction.
Cretaceous-Tertiary extinction.
The Pleistocene or Ice Age extinction.
Recent extinctions.
Human impacts.

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