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亿万年前远古时期，谁在地球上踩下第一个“脚印”？
source link: https://tech.sina.com.cn/d/c/2018-06-25/doc-iheirxyf4315026.shtml
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来源：中国科学报原标题：谁在地球上踩下第一个“脚印”？日前，在中国三峡埃迪卡拉纪地层，发现距今5.4亿多年前动物足迹化石的消息引起国内外关注。化石的发现者是由中国科学院南京地质古生物研究所和美国弗吉尼亚理工大学组成的早期生命研究团队。■本报
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