摘要
由于贵州北部下奥陶统碳酸盐岩石中发现大量牙形石,本文分析了该地层中牙形石动物群的分布特点,在黔北的下奥统建立了11个牙形石生物地层带。文中将这些牙形石带与国内外下奥陶统的牙形石带作了对比。这一成果对于贵州北部下奥陶统的研究,提供了微体化石资料。
A great amount of conodonts are discovered in the carbonatite stratum of the lower ordovician in Northern Guizhou and the distrabutive features of the conodont's animal groups in this stratum are analysed. Eleven stratum of conodont zones are established for the lower ordovician in Northern Guizhou. A comparison between these conodont zones and those around the world is made. This achievement provides the microfossil materials for the study of the lower ordovician in Northern Guizhou.
关键词
牙形石带
下奥陶统
生物地层
贵州
northern Guizhou
conodont zone
lowoer ordovician
