Q911.2
This research is a part of the project" Mesozoic Stratigraphy and Palaeontology of Beijing and Its Adjacent Regions" supported by the Chinese Academy of Geological Sciences. No. KY9105
Ren DongGeological Museum of China, Beijing.1994. Discovery of Fossil Bittacids in China[J]. ACTA GEOLOGICA SINICA(English edition),68(2):
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