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    Extinct fish fossils of 290 mln years ago found in Shanxi (3)

    (Ecns.cn) 13:03, August 27, 2021

    The tooth fossils of petalodus that dated back to 290 million years ago are compared to the teeth of great white shark (top). (Photo: China News Service/ Sun Zifa)


    【1】【2】【3】【4】

    (Web editor: Zhong Wenxing, Liang Jun)

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