武山盆地中新世大型哺乳动物群的发现及其意义

Based on the characteristics of mammals with fast evolution rate and sensitive response to environmentalchanges, the analysis of mammalian fossilscombined with the magnetostratigraphy of fossil-bearing strata and the thermochronology of detrital apatite fission tracks, the succession migration of proboscis is summarized, explores the origin, radiation, and dispersal of large mammals in response to environmental changes and the response to the uplift of the Tibet Plateau. The uplift of the plateau changes the natural environment, which leads to changes in the composition and distribution of animals and their adaptation to the environment. The results of Neogene mammal fossil studies in China not only show that there are obvious regional differences in the composition and characteristics of mammal groups, but also center of origin and diffusion of some representative phyla, and it is also a key migration route for the intercontinental migration of mammals. Studying the evolution history of mammal fossils in the hinterland and surrounding areas of the Tibet Plateau can invert the uplift process of the plateau during the Cenozoic era and its significant impact on climate and environmental changes.