| 羌塘盆地北部乌兰乌拉湖地区晚二叠世古生物新资料 |
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| 引用本文： | 赵兵,段丽兰,陈海霞.羌塘盆地北部乌兰乌拉湖地区晚二叠世古生物新资料[J].微体古生物学报,2006,23(4):392-398. |
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| 作者姓名： | 赵兵 段丽兰 陈海霞 |
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| 作者单位： | 成都理工大学沉积地质研究院,成都,610059 |
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| 摘 要： | 首次在北羌塘盆地北部乌兰乌拉湖地区测制了多条晚二叠世地层剖面,并采获丰富的古生物化石。将区内二叠系划分为那益雄组和拉卜查日组两个正式组级地层单位。描述了新发现的一个类新种和四个海绵类新种,建立了两个类生物带,即Codonofusiella-Gallowayinellalaxa组合带及Palaeofusulinasinensis延限带,一个非有孔虫组合带,即Colaniellanana-Robuloidesacutus组合带。其地质年代为晚二叠世长兴期。
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| 关 键 词： | 古生物 类 海绵类 新种 生物地层 晚二叠世 长兴阶 乌兰乌拉湖 羌塘盆地 |
| 收稿时间： | 2006-03-16 |
| 修稿时间： | 2006-08-23 |
NEW DATA ON PALAEONTOLOGY OF LATE PERMIAN IN THE ULAN UL HU AREA, NORTHERN QIANGTANG BASIN, NW CHINA |
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| ZHAO Bing,DUAN Li-lan,CHEN Hai-xia.NEW DATA ON PALAEONTOLOGY OF LATE PERMIAN IN THE ULAN UL HU AREA, NORTHERN QIANGTANG BASIN, NW CHINA[J].Acta Micropalaeontologica Sinica,2006,23(4):392-398. |
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| Authors: | ZHAO Bing DUAN Li-lan CHEN Hai-xia |
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| Institution: | Sedimentary Institute of Chengdu University of Technology, Chengdu 610059 |
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| Abstract: | Several Permian sections were measured in the Ulan Ul Hu area, Northern Qiangtang Basin, NW China. Abundant fossils were collected and identified. Permian sediments in this area are divided into two formal stratigraphic units: the Nayixiong Fm. and the Lapuchari Fm. One new species of Fusulinida and four new species of Pori- fera are described in this paper. Three biozones of Foraminiferida, the Codonofusiella-Gallowayinella laxa assemblage-Zone, the Palaeofusulina sinensis rang-zone and the Colaniella nana-Robuloides acutus assemblage-Zone, are established according to species composition and stratigraphic distribution.It is proposed that both Nayixiong Fm. and Lapuchari Fm. belong to the Changhsingian stage of Late Permian. |
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| Keywords: | palaeontology polifera foraminifera new taxa biostratigraphy Changhsingian stage Late Permian Ulan Ul Hu Northern Qiangtang Basin |
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