| 黔西南郭家湾新发现幻龙化石的埋藏特征及时代 |
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| 引用本文： | 向坤鹏,贺永忠,赵磊,安亚运,刘奎勇,何犇,盘应娟.黔西南郭家湾新发现幻龙化石的埋藏特征及时代[J].地质通报,2019,38(8):1266-1273. |
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| 作者姓名： | 向坤鹏 贺永忠 赵磊 安亚运 刘奎勇 何犇 盘应娟 |
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| 作者单位： | 贵州省地质调查院, 贵州 贵阳 550081,贵州省地质调查院, 贵州 贵阳 550081,贵州省地质调查院, 贵州 贵阳 550081,贵州省地质调查院, 贵州 贵阳 550081,贵州省地质调查院, 贵州 贵阳 550081,贵州省地质调查院, 贵州 贵阳 550081,贵州省地质调查院, 贵州 贵阳 550081 |
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| 基金项目： | 贵州省地质矿产勘查开发局地质科研项目《贵州敬南新发现海生爬行动物化石时代研究》（编号：QDKKH[2017]28）、中国地质调查局项目《贵州1：5万敬南、巴结、坡脚幅区域地质调查》（编号：121201010000150008）、贵州省科学技术厅项目《贵州省地质调查院院士工作站》（编号：黔科合平台人才[2018]5626） |
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| 摘 要： | 1∶5万区域地质调查在黔西南郭家湾新发现了一处幻龙化石点。通过剖面测制,详细解剖了化石的异地埋藏特征,并依据区域地质填图和化石资料确定其时代为中三叠世安尼期。在此基础上,根据黔西南及邻区安尼期化石群的分布,结合岩相古地理分布特征,浅析了幻龙化石可能的物源,结果显示郭家湾一带为幻龙活动范围的可能性较大。该幻龙化石的发现及其时代的限定,为研究三叠纪海生爬行动物的演化和迁移提供了新的素材,具有重要的科学意义。
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| 关 键 词： | 安尼期 幻龙 埋藏特征 郭家湾 |
| 收稿时间： | 2018/10/18 0:00:00 |
| 修稿时间： | 2019/4/16 0:00:00 |
The burial features and age of the newly discovered Nothosaur in Guojiawan area, southwestern Guizhou Province |
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| XIANG Kunpeng,HE Yongzhong,ZHAO Lei,AN Yayun,LIU Kuiyong,HE Ben and PAN Yingjuan.The burial features and age of the newly discovered Nothosaur in Guojiawan area, southwestern Guizhou Province[J].Geologcal Bulletin OF China,2019,38(8):1266-1273. |
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| Authors: | XIANG Kunpeng HE Yongzhong ZHAO Lei AN Yayun LIU Kuiyong HE Ben and PAN Yingjuan |
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| Institution: | Guizhou Geological Survey, Guizhou 550081, Guiyang, China,Guizhou Geological Survey, Guizhou 550081, Guiyang, China,Guizhou Geological Survey, Guizhou 550081, Guiyang, China,Guizhou Geological Survey, Guizhou 550081, Guiyang, China,Guizhou Geological Survey, Guizhou 550081, Guiyang, China,Guizhou Geological Survey, Guizhou 550081, Guiyang, China and Guizhou Geological Survey, Guizhou 550081, Guiyang, China |
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| Abstract: | Through the 1:50000 regional geological survey, a new nothosaur fossil site was discovered in Guojiawan area, southwestern Guizhou Province. Based on the field section measurement, the short-distance burial characteristics of the fossils were analyzed in detail,and the age was considered to be Middle Triassic Anisian Stage according to the regional geological mapping and fossil data. Combined with the distribution and the paleogeographic characteristics of the Anisian Stage biotas in the west of Guizhou Province and its adjacent areas, the authors analyzed the possible source. The result shows that Guojiawan area was the possible living place of the nothosaur. The discovery of the nothosaur and its age provides new material and evidence for the evolution and migration of Triassic Marine reptiles, and hence has important scientific significance. |
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| Keywords: | Anisian Stage Nothosaur burial features Guojiawan |
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