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[摘要]
广西宜山地区上二石炭统与下二叠统界线附近的珊瑚由下而上可划分为5个组合:(1)Paracarruthersella-Carinthiaphyllum carnicum(Pa-Ca)组合带,(2)Pseudocarniaphyllum-pseudoza-hrentoidesmapingensis-Antheria polygonalis(Ps-Pm-A)组合带,(3)Chusenophyllum-Polvthecalisnephelophylloides-Nephelophyllum yunnanense(Ch-Pn-N)组合带,(4)Szechuanophyllum-Polythecalispulchra(Sz-Pp)组合带,(5)Yatsengia ishanensis-Wentzellophyllum kueichozoense(Y-Wk)组合带.提出本区以Ch-Pn-N组合带的开始作为下二叠统的底界.文末记述珊瑚化石13新种.
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