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本文介绍了泥盆纪—石炭纪之交牙形类动物群的更替规律,不同相区牙形类主要类群的演化谱系和 D—C事件对牙形类动物群更替的影响,阐明牙形类演化谱系研究在泥盆系—石炭系界线研究中的意义,并对国际泥盆系—石炭系界线层型(GSSP)研究作了回顾和反思,认为中国贵州长顺大坡上剖面仍是国际上最佳体现牙形类 Siphonodella praesulcata-S.sulcata 演化关系和最符合泥盆系—石炭系界线定义的剖面。
In this paper, the changing rules of the Devonian-Carboniferous teratoceres, the evolutionary pedigree of the main taxa in different facies, and the D-C events on the evolution of the dentin fauna are introduced. Evolutionary pedigree in the study of Devonian-Carboniferous boundary, and reviewed and reconsidered the study of the international Devonian-Carboniferous boundary layer (GSSP). It is concluded that the section of Changshu Dapo slope in Guizhou Province of China is still an international The best representation of the evolution of the teratoid Siphonodella praesulcata-S.sulcata and the most suitable Devonian-Carboniferous boundary definition.