From the point of view of charophytes, the biostratigraphic records from the Paomagang Formation in Dangyang (China) are most continuous and abundant known so far in the world.
The fossil dinosaur eggs included 19 species assinged to 10 genera belonged 7 families. They are assosiated with Hadrosaurs, Tyrannosaurs, Sauropods, Charophytes, Sporopollen and trace fossils et al.