| 渭北地区石炭纪牙形刺初步研究 |
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| 引用本文： | 姚改焕,张志沛.渭北地区石炭纪牙形刺初步研究[J].西安科技大学学报,1990(2). |
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| 作者姓名： | 姚改焕 张志沛 |
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| 作者单位： | 西安矿业学院地质系，西安矿业学院地质系 |
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| 摘 要： | 本文对渭北地区石炭纪地层中采集的牙形刺进行了研究。经鉴定,共获得牙形刺6个属,8个种和6个未定种。其中中石炭统本溪组以Streptognathodus cf.parvus和?Idiognathodus corrugatus为代表;上石炭统太原组下部以Streptognathodus gracilis为代表;中部以S.oppletus,S.elegantulus和Idiognathodus delicatus为代表;上部经与其它地区同时期的牙形刺相比,缺失了以S.elongatus和S.wabaunsensis为代表的矛形刺动物群。
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| 关 键 词： | 石炭纪 牙形剌 本溪组 太原组 |
THE PRELIMINARY STUDY OF CARBONIFEROUS CONODONTS FROM WEIBEI REGION |
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| Yao Gaihuan Zhang Zhipei.THE PRELIMINARY STUDY OF CARBONIFEROUS CONODONTS FROM WEIBEI REGION[J].JOurnal of XI’an University of Science and Technology,1990(2). |
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| Authors: | Yao Gaihuan Zhang Zhipei |
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| Institution: | Yao Gaihuan Zhang Zhipei |
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| Abstract: | The conodont fossils collected from Carboniferous stratum in Weibei region are analysed and identified. There are six genuses to which eight species and six unidentified species belong. The species from Benxi Formation of Middie Carboniferous are Streptognathodus cf. parvus and ?Idiognathodus corrugatus, from lower part of Taiyuan Formation of Upper Carboniferous are Streptognathodus gracilis and from middle part of Taiyuan Formation are S. oppletus, S. elegantulus and Idiognathodus delicatus. In the upper part of Taiyuan Formation in this region there aren't conodont fossils. In comparison with the same times stratum of other regions, S.elongatus and S. wabaunsensis etc. conodont fossils fauna is absent in the upper part of Taiyuan Formation in Weibei region. |
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| Keywords: | Caboniferous conodont Beixi Formation Taiyuan Formation |
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