By
    studying the lithostratigraphy, chronostratigraphy and dinosaur egg
    biostratigraphy of the Tiantai Basin, this paper presents preliminary
    comparisons among the dinosaur egg faunas and strata of the major Chinese
    basins in which dinosaur eggs have been found. These comparisons show that the
    dinosaur egg fauna of the Tiantai Basin is the oldest, and is successively
    followed by younger faunas from the Xixia, Laiyang and Nanxiong basins.
    Compared against the overall stratigraphic framework of the Upper Cretaceous
    terrestrial red beds of China, the strata of these four basins are early, early-middle,
    middle-late and late Late Cretaceous in age, respectively.