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２０世纪８０年代以来 在辽宁省西部北票、朝阳、凌源、义县等地区晚中生代（１３０亿年）地层中，相继出土了一大批世界罕见的古生物化石，这些化石的主要特点是珍、稀、奇。其中有以孔子鸟和华亘鸟为主的两大古鸟类群化石标本，发现了近１０种的带羽毛恐龙化石标本。此前，尽
In the late Mesozoic (13.0 billion years) strata in Beipiao, Chaoyang, Lingyuan, Yixian and other areas in western Liaoning Province since the 1980s, a large number of paleontological fossils have been unearthed in succession. The main features of these fossils are Jane, Rare, odd. Among them, there are two fossil specimens of ancient bird fossils mainly composed of Confucius birds and Watanabe birds, and found nearly 10 species of fossilized feathered dinosaur specimens. Before, do