Introduction to the Unusual North China Dragon: The "Unusual North China Dragon" is 20 meters long, with a back height of 4.2 meters, a head height of 7.5 meters, and a weight of more than 50 tons. This dinosaur was discovered by Professor Pang Qiqing and researcher Cheng Zhengwu from the Institute of Geology of the Ministry of Land and Mines in 1983 at the junction of Yangyuan County, Hebei Province and Tianzhen County, Shanxi Province. After five years of hard excavation by teachers and students of Shijiazhuang University of Economics, the dinosaur was harvested. With more than 70% of the skeletons preserved, it is not only a new genus, new species, and new family, it is also the largest, latest, and best-preserved rare giant sauropod discovered in the Late Cretaceous in my country and even Asia. Fossils are world-class treasures.