摘要
This paper focuses on the lithostratigraphy and paleoenvironment reconstruction of the Upper Cretaceous in the Junggar Basin, which is characterized by a succession of red beds. The Upper Cretaceous in the Junggar Basin is regionally variable in thickness and poor in fossils. However, ostracoda fossils from these rocks are characteristic of Late Cretaceous. Three ostracoda assemblage zones have been recognized. These assemblage zones offer a biostratigraphic tool to correlation of Upper Cretaceous successions in the Junggar Basin.