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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。
Reported the first large-scale sauropod dinosaur femur found in Ruyang County, Henan Province. From the size of the proximal femur to determine the actual length of the femur may exceed 2m, should belong to the giant sauropod dinosaur’s femur is undoubtedly. Although the fossil is broken, the ownership of the genus has some difficulties, but its discovery is of great significance not only in the distribution and evolution of the legged dinosaurs, but also in the stratigraphy. The discovery of this dinosaur femur fossil pushed the age previously thought to belong to the Paleogene Mangchuan Formation to the late Early Cretaceous or Early Cretaceous and the underlying strata of Chenzigou Formation should also be classified as Cretaceous Period of deposition.