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may 20, 525714286 BC - Ammonite Extinction

Description:

End Cretaceous, 66 million years ago, 76% of all species lost

— Ammonite 15 cm length

Added to timeline:

Extinctions and fossils throughout the past

ByDanielle Rebalde

26 Oct 2018

0

0

507

Date:

may 20, 525714286 BC

Now

~ 5883516 years ago

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