Division of Stratigraphy and Paleontology：To carry out the study on stratigraphic dating and biological origin and evolution, to solve the key geological stratigraphy and paleontological problems arising in geological investigation. To undertake the biological fossil database construction work. To carry out basic research on the early evolution of life, biological replacement and geological environment change, important stratigraphic dating and so on, and to develop the basic theories of stratigraphy and paleontology. To explore and summarize the terrestrial and marine geological mapping method.