According to the conodont and fusulinid fossils,their ages are determined to be Devonian-Permian.
根据所含化
确定地层
成时代为泥盆纪至二叠纪。


According to the conodont and fusulinid fossils,their ages are determined to be Devonian-Permian.
根据所含化
确定地层
成时代为泥盆纪至二叠纪。
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