The "Big Five" Extinctions

End of Cretaceous
- 47% of marine genera, 18% of land vertebrate families
- Asteroid Impact
- 65 million years ago
End of Triassic
- 52% of marine genera
- Lava from central Atlantic province
- Circa 199 million years ago
End of Permian
- 95% of all species extinct
- Cause controversial
- Circa 251 million years ago
End of Devonian
- 57% of marine genera
- Cause unknown
- Circa 354 million years ago
Ordovician-Silurian
- 60% of marine genera
- Sea level changes due to glaciation
- 439 million years ago

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chanchan27104

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Card Set

The "Big Five" Extinctions

Description

Extinction

Updated

2014-11-09T19:23:49Z

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