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20世纪80年代初,科学家们在辽宁西部地区发现了距今1.2-1.5亿年,形成于侏罗纪晚期的古生物化石群。该化石群门类齐全,数量丰富,保存精美,吸引了国内外众多地质古生物学者的关注,从而使这里成为我国研究非海相晚中生代地层及其化石物生群的宝地。其中,以辽宁省义县境内金刚山山组为典型代表。近年来,在这里先后发现的“张和兽”、“杜氏孔子鸟”、“娇小辽西鸟”、“翼龙胚胎”、“薄氏辽宁枝”等珍稀化石,更是使辽西古生物化石宝库名震世界。
In the early 1980s, scientists found ancient fossils in the western Jurassic that lasted from 1.2 to 1.5 billion years ago and formed in the late Jurassic. The fossil group is rich in variety, abundant in abundance and beautifully preserved, attracting the attention of many geologists at home and abroad, making it a treasure house for studying non-marine Late Mesozoic strata and their fossils. Among them, the Yingshan County, Liaoning Province, Mount Geumsan mountain group as a typical representative. In recent years, “Zhanghe Beast”, “Duzi Confucius Bird”, “petite Liaodong Bird”, “Pterosaur embryo” and “Liaoning liaoning branch” discovered here have become more and more precious rare fossils Earthquake.