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"Age of Synapsids (Pelycosaurs, Therapsids, Sauropsids, early Mammals)" (oct 28, 320000000 BC – feb 9, 100000000 BC)
Added to timeline:
Chordate Evolution over Geologic Time
By
Zahur Ashrafuzzaman
26 Jan 2018
2
0
1647
Date:
oct 28, 320000000 BC
feb 9, 100000000 BC
~ 5883516 years
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