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详细描述了采自镇江附近11-1,11-2,79-8号等钻孔的上二叠统-下三叠统的牙形刺化石共11属28种,建立了6个牙形刺化石带,其中上二叠统1个、下三叠统5个,并以牙......
With abundant deep-water upper Permian sediments, Guizhou is an ideal place for the research of radiolarian biostratigra......