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Ordovicium 495- 443 (jan 1, 495000000 BC – jan 1, 443000000 BC)
Added to timeline:
20 Jan 2018
0
0
1251
Tidslinje for jordas geologiske perioder
Date:
jan 1, 495000000 BC
jan 1, 443000000 BC
~ 5883516 years