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志留纪：陆生的裸蕨植物出现 (jan 1, 440000000 BC – jan 1, 419000000 BC)

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ABriefHIistory

By杨炎涛
21 Feb 2021
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Date:

jan 1, 440000000 BC
jan 1, 419000000 BC
~ 5883516 years
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