The northern margin of the North China Craton (NCC) contains widespread Permian magmatic rocks,but the origin of these r......

Analyses of the extinction process of fusulinacean in the Maokouan (Middle Permian) biotic crisis have revealed remarka......

文章研究了广西隆林祥播地区中二叠统茅口阶，上二叠统吴家坪阶，长兴阶的有孔虫动物群，计有２２属５５种，７个未定种，分属于５个超科中的１２科。并由下而......