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20 agos 488300000 año aC - 1st mass extinction: Ordovician Period

Descripción:

http://www.ucmp.berkeley.edu/ordovician/ordovician.php

Añadido al timeline:

Science Period 5 timeline

ByDylan Mua
26 oct 2018
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fecha:

20 agos 488300000 año aC
Ahora mismo
~ 5883516 years ago
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