Zhang Yunxiang, Doctor of scienc, a professor and a doctoral supervisor. He was born in Hebei Province of China in 1957. He is interested in mammal fossils、biological stratigraphy of Cenozoic and taphonomy study. He had carried out some projects, such as the national natural science fund projects, the state science and technology commission “95″ climbing program project and the state key laboratory projects. He wins the first prize of the national teaching achievement, the second prize of national natural science technology by ministry of education nominated, and the first, second and third prize of the science and technology progress of Shaanxi province, etc.