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aug 21, 1795455 BC - A eurypterid became extinct about 408 million years agp
Description:
http://www.ucmp.berkeley.edu/arthropoda/chelicerata/eurypterida.html
Added to timeline:
laura nguyen timeline
By
Laura Nguyen
26 Oct 2018
0
0
553
Date:
aug 21, 1795455 BC
Now
~ 1798676 years ago
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