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第四期 距今5亿1400万年前 ~距今5亿900万年前 (jan 1, 513900000 BC – oct 18, 509000000 BC)

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地球地质年代表

By徐康
8 Feb 2020
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1126

Date:

jan 1, 513900000 BC
oct 18, 509000000 BC
~ 4903254 years
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