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Ordovician (488 mya - 444 mya) (sep 19, 488000000 BC – may 20, 444000000 BC)

Description:

Invertebrates dominated the oceans (mostly molluscs and arthropods)

Added to timeline:

Earth Geologic History

ByJuliana Lamy
13 Dec 2018
0
0
490

Date:

sep 19, 488000000 BC
may 20, 444000000 BC
~ 5883516 years

Images:

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