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6 agos 440056427 anni a. C. - first mass extinction event

Descrizione:

the end ordovician period occurred 440 million years ago and 86% of all species were lost https://userpages.umbc.edu/~squire/extinctions.html

Aggiunto al nastro di tempo:

alex huang science timeline

26 ott 2018

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374

Data:

6 agos 440056427 anni a. C.

Adesso

~ 5883516 years ago

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