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地质通报  2005 

中国甘肃发现世界上最大牙齿的植食性恐龙:巨齿兰州龙(新属、新种)

, PP. 785-794

Keywords: 恐龙,鸟脚类恐龙,牙齿,早白垩世,中国甘肃兰州盆地

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Abstract:

巨齿兰州龙(新属、新种)是发现于中国甘肃省兰州盆地早白垩世地层中的一新鸟脚类恐龙,其牙齿是世界上已知植食性恐龙中最大的.兰州龙下颌长1m,每侧有14个齿槽,而单个牙齿宽约4cm,这是已知恐龙中的首次报道.分支系统学分析发现巨齿兰州龙与非洲早白垩世的Lurdusaurusarenatus关系密切.它们代表了鸟脚类恐龙进化中四足行走的笨重的一新支.兰州龙的发现也表明欧亚大陆与非洲在早白垩世具有较密切的联系.

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