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THE BASE OF THE PERMIAN SYSTEM IN CHINA
Author(s): 
Pages: 378-387,图版Ⅰ
Year: Issue:  4
Journal: ACTA MICROPALAEONTOLOGICA SINICA

Keyword:  形刺5treptognathodus isolatus二叠系底界中国;
Abstract: 牙形刺是二叠系生物地层的主导门类,二叠系的三统九阶的界线层型(GSSP)都将用牙形刺定义.我国石炭一二叠系(C/P)的分界应采用与国际上一致的标准,即用牙形刺Streptog nathodus isolatus的首次出现定义二叠系的底界.S.Isolatus在我国华南、华北均有分布,可精确地确定二叠系的底界.华北太原组应归下二叠统Asselian阶,我国C/P界线地层和Streptog nathodus的分类,有待做更精细的研究.
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