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Ordovician Period (nov 10, 485400000 BC – aug 2, 443800001 BC)
Added to timeline:
26 Jan 2018
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1379
Chordate Evolution over Geologic Time
Phanerozoic geologic time scale showcasing evolutionary deve...
Date:
nov 10, 485400000 BC
aug 2, 443800001 BC
~ 5883516 years