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6 agos 434 año aC - ордовикско-силурийское вымирание - в результате которого исчезло около 60 % видов существовавших в ордовике морских организмов.

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Водопьянова Олеся ЭБ17-02Б

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28 oct 2018
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556

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6 agos 434 año aC
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~ 2461 years ago
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