论中国早石炭世珊瑚的地理区系

ON THE GEOGRAPHIC PROVINCE OF THE LOWER CARBONIFEROUS CORAL OF CHINA

依据中国早石炭世珊瑚群特征的研究，岩关期珊瑚地理区系可分（一）北方珊瑚大区——中国北方珊瑚区：①兴安珊瑚分区以Ａｎｋｈｅｌａｓｍａ和Ｈｏｍａｌｏｐｈｙｌｉｔｅｓ等北美分子为主的单体不具鳞板的珊瑚；②准噶尔珊瑚分区以Ｋａｓｉｎｅｌａ，Ｈｅｂｕｋｅｐｈｙｙｌｕｍ等欧亚分子为主体的单体无鳞板珊瑚。（二）特提斯珊瑚大区——中国南方珊瑚区：①华南珊瑚分区以Ｃｙｓｔｏｐｈｒｅｎｔｉｓ－Ｐｓｅｕｄｏｕｒａｌｉｎｉａ为代表的珊瑚群；②西部珊瑚分区以Ｂｅｉｃｈｕａｎｏｐｈｙｌｕｍ－Ｓｉｐｈｏｎｏｐｈｙｌｉａ－Ｈｕｍｂｏｌｄｔｉａ为代表的珊瑚群。大塘期珊瑚地理区系可分（一）特提斯珊瑚大区——Ｋ．Ｙ．珊瑚区：①北天山—吉中珊瑚分区以Ｙｕａｎｏｐｈｙｌｕｍ－Ｇａｎｇａｍｏｐｈｙｌｕｍ－Ｓｉｐｈｏｎｏｐｈｙｌｉａ为代表的珊瑚群；②南部珊瑚分区以Ｙｕａｎｏｐｈｙｌｕｍ－Ｋｅｉｃｈｏｕｐｈｙｌｕｍ为代表的珊瑚群。（二）冈瓦纳珊瑚大区——藏南珊瑚区：①冈底斯—口念青唐古拉珊瑚分区以Ｒｈｏｐａｌｏｌａｓｍａ－Ｍｉｒｕｓｏｐｈｙｌｕｍ为代表的小型单体无鳞板的珊瑚群；②喜马拉雅珊瑚分区以Ｌｏｎｇｉｃｌａｖａ－Ｃｕｍｍｉｎｓｉａ为代表的单体不具鳞?

Based on some factors, e.g. the distribution and evolution of sea, the obstruction of land, the paleolatitude variation and the characteristics of the coral fauna, the geographic province of the Lower Carboniferous coral of China is proposed in the paper.The Yanguanian coral geographic subprovince is subdivided into Northern coral region (N.China coral region) and Tethys coral region (S.China coral region). The N.China coral region can be further classified into Xingan coral subregion and Zhungeer coral subregion, where the former is represented by the coral Ankhelasma, Homalophyllites and the latter by the Kassinella, Hebukephyllum . The S. China coral region can be subdivided in to Huanan coral subregion characterized by the coral Cystophrentis, Pseudouralinia and the western coral subregion containing Beichuanophyllum, Siphonophyllia and Humboldtia . The Datangian geographic subprovince is subdivided into Tethys coral region (Kueichouphyllum Yuanophyllum region). The Kueichouphyllum Yuanophyllum region can be classified into N.Tienshan central Jilin coral region characterised by the coral Yuanophyllum, Gangamophyllum, siphonophyllia and southern coral subregion yielding Kueichouphyllum, Yuanophyllum. The southern Tibet coral region is classified into Gangdesi Nianqingtanggula coral subregion containing the Rhopalolasma, Mirusophyllum and the Hymalaya coral subregion with the coral Longiclave, Cumminsia. We think that the first appearance of the caninod coral of China suggests the beginning of the Yanguanian stage.