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jan 24, 444000000 BC - End Ordovician

Description:

https://userpages.umbc.edu/~squire/extinctions.html

444 million years ago, 86% of species lost
— Graptolite 2-3 cm length

Added to timeline:

Digital Geologic Time Scale

29 Oct 2018

0

0

450

Date:

jan 24, 444000000 BC

Now

~ 5883516 years ago

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