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地质通报  2006 

河南汝阳地区-巨型蜥脚类恐龙股骨化石的发现及其地层学意义

, PP. 1299-1302

Keywords: 巨型蜥脚类恐龙化石蟒川组早白垩世晚期或晚白垩早期河南省汝阳县

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Abstract:

报道了首次在河南省汝阳县发现的大型蜥脚类恐龙股骨化石。从股骨近端的大小来判断,该股骨的实际长度可能超过2m,应属于巨型蜥脚类恐龙的股骨无疑。虽然化石破碎,种属的归属存在一定的困难,但是它的发现无论从晰脚类恐龙的分布、演化还是从地层学上都具有重要意义。该恐龙股骨化石的发现,将该地区原认为属于古近系蟒川组的时代向前推至早白垩世晚期或晚白垩世早期,同时其下伏地层陈宅沟组也应划归白垩纪时期的沉积。

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