| 长江源各拉丹冬地区晚二叠世乌丽群的腕足类生物组合 |
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| 引用本文： | 牛志军,马丽艳,曾波夫.长江源各拉丹冬地区晚二叠世乌丽群的腕足类生物组合[J].地球学报,2003,24(4):343-348. |
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| 作者姓名： | 牛志军 马丽艳 曾波夫 |
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| 作者单位： | 中国地质调查局宜昌地质矿产研究所，湖北宜昌，443003;中国地质调查局宜昌地质矿产研究所，湖北宜昌，443003;中国地质调查局宜昌地质矿产研究所，湖北宜昌，443003 |
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| 基金项目： | 中国地质调查局“西藏地区1:25万赤布张错幅(146C003001)区域地质调查”项目(编号20001300009121) |
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| 摘 要： | 在长江源区各拉丹冬一带晚二叠世地层中建立了2个腕足类生物组合，下部为Spinomarginifera cf.kueichowensis-Tschernyschewia cf.sinensis-Tyloplecta cf.yangtzeensis组合，见于乌丽群下部的那益雄组；上部为Leptodus nobilis-Perigeyerella costellata-Enteletes subequivalis组合，见于乌丽群上部的拉卜查日组。两个组合生物群属于特提斯动物群，均可与华南地区同期地层中的生物群相对比。
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| 关 键 词： | 二叠纪 乌丽群 腕足类 长江源区 |
Late Permian Brachiopod Faunas from Wuli Group of Geladandong Mountain Area in the Source Region of the Yangtze River |
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| NIU Zhi-jun,MA Li-yan and ZENG Bo-fu.Late Permian Brachiopod Faunas from Wuli Group of Geladandong Mountain Area in the Source Region of the Yangtze River[J].Acta Geoscientia Sinica,2003,24(4):343-348. |
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| Authors: | NIU Zhi-jun MA Li-yan and ZENG Bo-fu |
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| Institution: | Yichang Institute of Geology and Mineral Resources, China Geological Survey, Yichang, Hubei 443003;Yichang Institute of Geology and Mineral Resources, China Geological Survey, Yichang, Hubei 443003;Yichang Institute of Geology and Mineral Resources, China Geological Survey, Yichang, Hubei 443003 |
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| Abstract: | Two brachiopod assemblages from Late Permian Wuli Group were recognized in Geladandong Mountain area within the source region of the Yangtze River. One is the Spinomarginifera cf. kueichowensis-Tschernyschewia cf. sinensis-Tyloplecta cf. yangtzeensis assemblage from the Nayixiong Formation of Lower Wuli Group, which is considered to be Wuchiapingian in age. The other is the Leptodus nobilis-Perigeyerella costellata-Enteletes subequivalis assemblage in the Labuchari Formation of Upper Wuli Group, which is thought to be Changhsingian in age. The Late Permian brachiopod in the area belongs biogeographically to the Tethys Realm. Both of them are comparable with the faunas from the contemporaneous strata in southern China. |
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| Keywords: | Permian Wuli Group brachiopods source region of the Yangtze River |
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