| 滇东曲靖地区志留纪四射珊瑚的动物群特征及地层时代讨论 |
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| 引用本文： | 丁春鸣.滇东曲靖地区志留纪四射珊瑚的动物群特征及地层时代讨论[J].现代地质,1988,2(1):20. |
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| 作者姓名： | 丁春鸣 |
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| 作者单位： | 地矿部石油地质研究所 |
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| 摘 要： | 本文着重从四射珊瑚动物群的角度讨论了滇东曲靖地区志留系的地层划分及对比问题。并提出曲靖地区的中、晚志留世具有4个珊瑚化石组合。对部分四射珊瑚属种（其中包括9个新种,4个相似种和一个未定属种）进行了描述。
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| 关 键 词： | 四射珊瑚 中、上志留统 中、晚志留世 地层 属 种 |
THE CHARACTERS OF SILURIAN RUGOSE CORALS AND THE DISCUSSION ABOUT THE AGE OF THE STRATA OF QUJING REGION,YUNNAN |
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| Ding Chunming.THE CHARACTERS OF SILURIAN RUGOSE CORALS AND THE DISCUSSION ABOUT THE AGE OF THE STRATA OF QUJING REGION,YUNNAN[J].Geoscience——Journal of Graduate School,China University of Geosciences,1988,2(1):20. |
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| Authors: | Ding Chunming |
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| Abstract: | The Silurian rugose corals, deals with in this paper were collected from Qujing district, Yunnan province. Here 10 genera and 16 species are described, Among which 9 species are new.
The Silurian of this area is subdivided into three formations: Middle to Jpper Silucian Guandi ,Uppec Silurian Mia o-gao formation and Yulungsi formation.
The Silurian rugose corals contain 4 assemblages:the lower two, Holmophyllum-ketophyllum assemblage and Mucophyllum-steptel-asma assemblage belong to Middle Silurian Guandi formation. The third pillophyllum-phaulactis and the fourth Diplochone-Squ-ameofavosites are a part of Upper Silurian Miaogao formation.The faunas are very abundant in the lower and middle parts of Guandi formation and most of them have a range from Lower to Middle Silurian and they arc characterized by small, solitary and forms. Therefore, the age of the lower and middle parts of Guandi Formation is still considered as Middle Silurian. As the majority of the fossils in the Miaogao formation are Late Silurian in age. TheMiddle-Upper Silurian boundary is probably within the upper part of Guandi Formation.
Synopsis: According to the characters of rugose coral faunas, the division and correlation of Silurian in Qujing region, Eastern Yunnan, are specially discussed in this paper. It is considered that there are four coral assemblages in Middle and Upper Silurian of the region. A part of the rugose corals are described. |
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| Keywords: | : rugose coral Middle and Upper Silurian strata genus species |
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