陕西甘泉发现中侏罗世恐龙足迹群
Discovery of dinosaur ichnoassemblage from the Middle Jurassic at Ganquan County,Shaanxi Province
李兴文 1李益朝 1王卓胜 2孙淼 3王宝鹏 4王秦伟 1唐玉 1祝捷 1吴昊 1季燕南3
作者信息
- 1. 陕西省地质调查院,陕西西安 710068
- 2. 陕西省地质调查院,陕西西安 710068;中国地质大学(北京)地球科学与资源学院,北京 100083
- 3. 中国地质环境监测院,北京 100081
- 4. 国家自然博物馆,北京 100050
- 折叠
摘要
恐龙足迹化石是重建鄂尔多斯盆地侏罗纪恐龙动物群的重要途径.在野外地质调查和室内研究的基础上,对陕西甘泉中侏罗世直罗组发现的恐龙足迹群进行了简要记述.初步研究结果表明,甘泉恐龙足迹群具有较强的多样性,足迹类型包括了兽脚类、蜥脚类、可能的鸟脚类及龟鳖类足迹;兽脚类足迹呈现高度多样化,包括大型、中型和小型的三趾型足迹和大型的四趾型足迹;蜥脚类足迹可归入雷龙足迹;可能的鸟脚类足迹保存较差,难以归入到具体属种;可能的龟鳖类足迹为鄂尔多斯盆地侏罗系的首次记录.甘泉恐龙足迹群的发现,扩大了中国恐龙足迹的地理分布,对于重建鄂尔多斯盆地侏罗纪恐龙动物群及古生态、古地理、古环境等具有重要意义.
Abstract
Dinosaur tracks have become the crucial way to reconstruct the Jurassic dinosaurian fauna in the Ordos Basin,since few dinosaur fossil skeletons have been ever reported from the Jurassic in the basin.On the basis of field geological survey and indoor research,the newly discovered dinosaur ichnoassemblage from the Middle Jurassic Zhiluo Formation at Ganquan County of Shaanxi Province is briefly described herein.Preliminary research indicates that Ganquan dinosaur ichnoassemblage reveals a relatively diverse ichnofauna consisting of theropod,sauropod,possible ornithopod and turtle.Theropod footprints are highly diverse,and include large,medium and small tridactyl footprints and large tetradactyl footprints.Sauropod footprints can be attributed to Brontopodus isp..A single possible ornithopod footprint is poorly preserved and cannot be classified.Possible turtle footprints represent the first record from the Jurassic in the Ordos Basin.The discovery of Ganquan dinosaur ichnoassemblage expands the geographic distribution of dinosaur tracks in China,and has great significance for the reconstruction of the Jurassic dinosaurian fauna,palaeogeography,palaeoecology,and palaeoenvironment in the Ordos Basin.Further research on Ganquan dinosaur ichnoassemblage will be carried out.
关键词
恐龙足迹/直罗组/中侏罗世/甘泉/陕西/地质调查工程Key words
dinosaur footprint/Zhiluo Formation/Middle Jurassic/Ganquan/Shaanxi Province/geological survey engineering引用本文复制引用
基金项目
国家自然科学基金青年科学基金(42202028)
中国地调局项目(DD20190074)
出版年
2024
国家科技期刊平台
NSTL
万方数据