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川西北二叠系栖霞组小有孔虫动物群
张舟, 张廷山, 蓝光志
Nonfusulinid Foraminiferal Fauna from the Permian Chihsia Formation, Northwestern Sichuan Basin
ZHANG Zhou, ZHANG Ting-Shan, LA Guang-Zhi
现代地质 . 2011, (5): 987 -994 .