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Tchi, 1976. In Nei Monggol Zizhiqu Dizhiju, Dongbei Dizhi Kexue Yanjiusuo [Inner Mongolia autonomous region Bureau of Geology, North-Eastern Institute of Geology], Huabei diqu gushengwu tuce. Nei Monggol fence.1. Gushengdai bufen. aeontological atlas of N. |