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may 16, 550278649 BC - trilobite unknown species #2

Description:

trilobite lived 550 million years ago and survived the first mass extinction but were nearly fully wiped out during the second
http://www.ucmp.berkeley.edu/arthropoda/trilobita/trilobita.html

Added to timeline:

alex huang science timeline

ByAlex Huang
26 Oct 2018
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Date:

may 16, 550278649 BC
Now
~ 5883516 years ago

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