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Continue to Chat陝西發現中國最古老龜類足跡距今約1.6億年 https://blog.wongcw.com/2021/06/14/%e9%99%9d%e8%a5%bf%e7%99%bc%e7%8f%be%e4%b8%ad%e5%9c%8b%e6%9c%80%e5%8f%a4%e8%80%81%e9%be%9c%e9%a1%9e%e8%b6%b3%e8%b7%a1%e8%b7%9d%e4%bb%8a%e7%b4%841-6%e5%84%84%e5%b9%b4/