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BlobNotFoundThe specified blob does not exist. RequestId:902d29c2-201e-0055-5cd6-6ed31e000000 Time:2019-09-19T10:38:02.3123463Z

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重播

  美国考古学家在非洲撒哈拉沙漠发现了一个史前鳄鱼群化石遗址,他们在遗址上挖掘出数种史前鳄鱼的化石残骸。发现的史前鳄鱼共有五种,它们分别是鼠鳄、扁平鳄、狗鳄、猪鳄、鸭鳄等,其中猪鳄最为凶猛,甚至以恐龙为食。

  1、鼠鳄

鼠鳄(图片提供:Christine Dell‘Amore )

  本图是鼠鳄的电脑效果图,图中的鼠鳄正在吞食猎物幼虫。鼠鳄鼻子呈扁平状,它们曾经统治着整个冈瓦那超大陆。冈瓦那超大陆后来在大约1亿年前分裂成为南半球的数个大块陆地。美国芝加哥大学古生物学家保罗-塞利诺介绍说,“在非洲大陆,曾经存在着一个完整的鳄鱼世界。此前,我们对此知之甚少。”

  [责任编辑:梁雪梅]

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