| 广西宜山马平组的■类化石分带 |
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| 引用本文： | 杨湘宁.广西宜山马平组的■类化石分带[J].现代地质,1989(3). |
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| 作者姓名： | 杨湘宁 |
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| 摘 要： | 本文讨论了广西宜山马平组(虫筳)类化石的分带情况,并和国内有关地区的上石炭——早二叠统的(虫筳)类化石带进行了对比。根据对采自宜山马脑山连续地层剖面上约120个(虫筳)类化石种的研究,该地马平组的(虫筳)类化石可自上而下分为三带、四亚带: 栖霞组 Misellina claudiae 带; 马平组 Ⅲ. Pseudoendothyra discalis(sp.nov.) 带; Ⅱ. Pseudoschwagerina 带; (4)Eoparafusulina simplex 亚带; (3)Sphaeroschwagerina subrotunda-Robustoschwagerina 亚带; (2)Pseudoschwagerina cheni 亚带; Ⅰ.Triticites 带; (1)Triticites simplex 亚带; 黄龙组 Fusulina-Fusulinella. 本文还比较详细地介绍了发育于该地马平组顶部的一个独特的(虫筳)类动物群——Pseudoendothyra动物群,对其对比问题进行了初步的探讨;同时还描述了6个(虫筳)类化石新种。
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| 关 键 词： | 马平灰岩(马平组) ■类化石 广西省 |
THE FUSULINIDS ZONATION OF MAPING FORMATION IN YISHAN COUNTY, GUANGXI AUTONOMOUS REGION |
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| Yang Xiangning.THE FUSULINIDS ZONATION OF MAPING FORMATION IN YISHAN COUNTY, GUANGXI AUTONOMOUS REGION[J].Geoscience——Journal of Graduate School,China University of Geosciences,1989(3). |
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| Authors: | Yang Xiangning |
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| Institution: | China University of Geosciences |
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| Abstract: | The Late Carboniferous to Early Permian Maping Formation was developed very well in Yishan County and the other areas of Northern Guangxi. Based on a study about 120 fusulinids species collected from a continuous stratigraphic section in Manaoshan, three fusulinid fossil zones and four subzones have been re-esta blished for the Maping Formation. They are (in a descending order):
Qixia Formation:
Misellina claudiea zone;
Maping Formation:
?. Pseudoendothyra discalis zone; ?. Pseudoschwagerina zone;
(4) Eoparafusulina simplex subzone;
(3) Sphaeroschwagerina subrotunda-Robustoschwagerina subzone; (2) Pseudoschwagerina cheni subzone ?. Triticites zone;
(1) Triticites simplex subzone;
(The lower part of the Triticites zone is not named for subzone.)
Huanglong Formation:
Fusulina-fusulinella zone;
These fossil zones and subzones can be correlated with the fusulinids zones of the same age in the other regions of China. The stratigraphic significance of a peculiar fusulinid fauna, ie., the "Pseudoendothyra fauna" found at the top of the Maping Formation, has been discussed. Also, six new fusulinid species are described in this article. |
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| Keywords: | : Maping limestone (Maping Formation) fusulinids fossil Guangxiprovince |
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