| 石花形恐龙幻迹：中国重庆綦江区下白垩统夹关组的罕见遗迹化石 |
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| 引用本文： | 邢立达,洛克利 马丁 G.,王丰平,胡旭峰,罗顺清,张建平,杜 伟,培森四世W. 斯考特,谢显明,代 辉,王荀仟. 石花形恐龙幻迹：中国重庆綦江区下白垩统夹关组的罕见遗迹化石[J]. 地质通报, 2015, 34(5): 884-889 |
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| 作者姓名： | 邢立达 洛克利 马丁 G. 王丰平 胡旭峰 罗顺清 张建平 杜 伟 培森四世W. 斯考特 谢显明 代 辉 王荀仟 |
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| 作者单位： | 1.中国地质大学（北京）地球科学与资源学院,北京 100083;2.美国科罗拉多大学丹佛分校恐龙追踪者团队,美国 丹佛 80217;3.重庆市綦江区国土资源和房屋管理局,重庆 401420;4.重庆市地质矿产勘查开发局208水文地质工程地质队,重庆400700;5.重庆市北碚区国土资源管理分局,重庆 400700;6.阿尔伯塔大学生物科学系,加拿大 埃德蒙顿 T6G 2E9 |
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| 摘 要： | 在中国重庆綦江区虎山足迹点发现了2个大型恐龙天然足模化石,化石赋存于砂质富集的夹关组的一悬崖底面。它们属于罕见的幻迹,同类足迹也发现于韩国和北美白垩系足迹点。放射状、同心及半脆性形变使这些幻迹具有切断状或网状外观,有时呈现出类似裂断花或菜花的形态。这正是当地“石头开花”民间传说的来源。这些特征表明,造迹者必然是恐龙,同时也清晰地展现了其外形态学特征。
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| 关 键 词： | 恐龙足迹 幻迹 夹关组 下白垩统 綦江 |
Stone flowers explained as dinosaur undertracks: unusual ichnites from the Lower Cretaceous Jiaguan Formation, Qijiang District, Chongqing, China |
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| Affiliation: | 1. School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;2. Dinosaur Trackers Research Group, University of Colorado Denver PO Box 173364, Denver, CO 80217, USA;3. Qijiang District Bureau of Land Resources, Chongqing 401420, China;4. No.208 Hydrogeological and Engineering Geological Team, Chongqing Bureau of Geological and Mineral Resource Exploration and Development, Chongqing 400700, China;5. Chongqing Beibei Bureau of Land and Resources, Chongqing 400700, China;6. Department of Biological Sciences, University of Alberta, 11145 askatchewan Drive, Edmonton Alberta T6G 2E9, Canada |
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| Abstract: | Two large footprint features preserved as natural casts on the underside of an overhang in the sand-rich Jiaguan Formation of the Tiger tracksite, Qijiang District, Chongqing, China, are shown to be unusual undertrack features of the type reported from other Cretaceous sites in Korea and North America. A combination of radial and concentric, semi-brittle deformation gives these undertracks a "chopped up" or reticulate appearance which sometimes resembles a segmented flower or cauliflower-like morphology. This has given rise to local folklore references to stone flowers. Such features while of undisputed dinosaurian origin clearly demonstrate extramorphological characteristics. |
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| Keywords: | dinosaur tracks undertracks Jiaguan Formation Lower Cretaceous Qijiang |
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