摘要
本文在前人工作的基础上,根据近年来的研究成果,排列了贵州奥陶系14个牙形石带,论述了牙形石生物地层特征、层序、分布规律,以及它们和宏观化石的关系,并和中国南部奥陶系牙形石带进行了对比。
North and Northeast Guizhou is one of the areas with well developed Ordovician strata yielding excellent fossils of conodonts in South Chana. The Ordovican conodonts in Guizhou have been studied in detail during last ten years.
This paper vevision of the Ordovician conodonts succession in Guizhou is mainly based on the standard section of North and Northeast Guizhou. It includes 14 Zones. These Zones are listed as follows:
Upper Ordovician Shikou Stage
14. Protopanderodus insnilptus Acme Zone. The Acme Zone is distributed mainly North of Guizhou.
Middle Ordovician Hanjiang Stage
13. Ilamarodus europaeus Range Zone. The Range Zone is distributed North and Northeast.
Hule Stage
12. prionoiodus lingulatus Range Zone. The Range Zone is distributed mainly North of Guizhou.
11. Eoplacognatltus jianyeensis Range Zone. The Range Zone is distributed mainly North of Guizhou.
10. Prioniodus txtriabilis Range Zone. The Range Zone is distributed mainly North of Guizhou.
Lower Ordovician Ningguo Stage
9. Amorphogrnatlais vanubilis-Eoflacognatlais foliaceus Assemblage Zone. The Assemblage Zone is distributed North and Northeast.
8. Baitomiudus triangularis-Oistoius meseaus Assemblage Zone. The Assemblage Zone is distributed North and Northeast.
7. Ocpikodus ewe Range Zone. The Range Zone is distributed North and Northeast.
6. Baltoniodus comnaaus Range Zone. The Range Zone is distributed North and Northeast.
5. Serratagnatltus diversus Assemblage Zone. The Assemblage Zone is distributed North and Northeast. Xinchang Stage
4. Tripodus Prvtetis-Paltudus Assemblage Zone. The Assemblage Zone is distributed North and Northeast. 3. Scolopodus? Pscudopiamis-Glyftoconus qtiadraplicatus Assemblage Zone. The Assemblage Zone is distributed North and Northeast.
2. Acmthodus lineatus Range Zone. The Range Zone is distributed No and Northeast. 1. Monvcustvdus Serierensis Acme Zone. The Acme Zone is distributed North and Northeast. The Zonation and Correlation of the Ordovician Conodonts in Guizhou of China is in Table 1.
出处
《贵州地质》
1990年第4期352-360,共9页
Guizhou Geology
