北京自然博物馆现在的古生物展览是１９８４年完成的，已经有１８年的历史了。在这１８年间，我国及世界的古生物科学有了很大的发展，新的科学发现层出不穷。比如，在辽西发现了许多鸟化石、长羽毛的恐龙、原始哺乳动物以及最早的被子植物化石等等，不断给热河生物群增添新的 The Museum of Natural History of Beijing is now completed in 1984. It has been 18 years old. During these 18 years, the paleontological sciences in China and the world have developed greatly, and new scientific discoveries have emerged one after another. For example, many bird fossils, feathered dinosaurs, primitive mammals, and the earliest fossils of angiosperms were found in western Liaoning, and they constantly added new ones to the Jehol Biota.