Скачать или смотреть All 5 Biggest Mass Extinctions in History of Our Planet

There are total 5 mass extinction in earth history.
Ordovician-Silurian Extinction (Around 443 million years ago)
Late Devonian Extinction (Around 360 million years ago)
Permian-Triassic Extinction (Around 252 million years ago)
Triassic-Jurassic Extinction (Around 201 million years ago)
Cretaceous-Paleogene or KT Extinction (Around 66 million years ago)
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