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蒙古戈壁上白垩统的暴龙类额骨

2012年第50卷 第2期: 102-110

发表日期:2012-04-23来源:放大 缩小

编辑:对比地孝亘,渡部真人,Khishigjav Tsogtbaatar,Rinchen Barsbold, 鈴木茂

摘要:记述了发现于蒙古戈壁查干泰格地点的一块额骨。短的眶缘和矢状脊的存在等特征表明,该标本属于暴龙超科。查干泰格地点出露的地层被认为属于森诺曼-桑托期的巴音沙拉组,新材料的发现为上白垩统下部非常稀少的暴龙类恐龙记录增添了新的内容。

关键词:蒙古戈壁;上白垩统;巴音沙拉组;恐龙超目,兽脚亚目,暴龙超科

卷期:50卷 02期

 

A tyrannosauroid frontal from the Upper Cretaceous (Cenomanian-Santonian) of the Gobi Desert, Mongolia

 

Takanobu Tsuihiji, Mahito Watabe, Khishigjav Tsogtbaatar, Rinchen Barsbold, Shigeru Suzuki

 

Abstract  An isolated frontal found at the Tsagaan Teg locality in the Gobi Desert is described. Such features as a short orbital rim and the presence of a sagittal crest indicate that this specimen belongs to Tyrannosauroidea. Because the sediment cropping out at Tsagaan Teg is considered as belonging to the Cenomanian-Santonian Bayn Shire Formation, the present specimen contributes to improving the extremely poor fossil record of tyrannosauroid theropods in the lower Upper Cretaceous.
Key words  Gobi Desert, Mongolia; Upper Cretaceous; Bayn Shire Formation; Dinosauria, Theropoda, Tyrannosauroidea

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