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白垩—古近纪界线事件
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白垩—古近纪界线事件
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理学
白垩纪-古近纪界线事件
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K-Pg boundary event
白垩—古近纪界线事件
地质历史时期发生的第二大规模的生物集群灭绝事件。又称K—Pg事件,曾称白垩—第三纪(K—T)界线事件。
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