| 河南淅川盆地上白垩统恐龙蛋一新蛋种 |
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| 引用本文： | 贾松海,方开永,高殿松,高永利,常华丽,常飞,肖乐,杨丽丽,郑亚琳,朱旭峰,王强,汪筱林.河南淅川盆地上白垩统恐龙蛋一新蛋种[J].地质学报,2020,94(10):2816-2822. |
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| 作者姓名： | 贾松海 方开永 高殿松 高永利 常华丽 常飞 肖乐 杨丽丽 郑亚琳 朱旭峰 王强 汪筱林 |
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| 作者单位： | 1) 河南省地质博物馆，郑州，450016;2) 中国科学院脊椎动物演化与人类起源重点实验室，中国科学院古脊椎动物与古人类研究所，北京，100044；3) 中国科学院生物演化与环境卓越创新中心，北京，100044;2) 中国科学院脊椎动物演化与人类起源重点实验室，中国科学院古脊椎动物与古人类研究所，北京，100044；3) 中国科学院生物演化与环境卓越创新中心，北京，100044；4) 中国科学院大学地球与行星科学学院，北京，100049 |
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| 基金项目： | 本文为国家自然科学基金（41672012，41688103)、中国科学院B类战略性先导科技专项（XDB26000000)、《淅川盆地恐龙蛋化石及古生态研究》（豫财招标采购 2018 132)和河南地质博物馆承担的《河南古生物化石产地示范调查与标本普查（南部)》（合同编号:WT2020098B)资助的成果。 |
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| 摘 要： | 河南淅川盆地的恐龙蛋发现与研究始于1974年，淅川盆地恐龙蛋具有非常高的多样性，共计发现4个蛋科、6个蛋属、6个蛋种，尤其以树枝蛋类最为丰富。近年来，河南地质博物馆对全省地质遗迹调查过程中，在淅川盆地再次有新的恐龙蛋类型的发现，本文对其中的部分标本进行记述，根据壳单元呈多分叉的不规则树枝状，蛋壳厚度为1. 62~1. 74 mm，锥体间隙明显，壳单元自锥体上部开始出现分枝，蛋壳中部大多具有3~4个分枝，近蛋壳外表面形成融合层，蛋壳具有复杂的气孔系统等特征区别于其他类型的树枝蛋类，建立一新蛋种:大石桥树枝蛋（Dendroolithus dashiqiaoensis oosp. nov. )。通过对淅川盆地恐龙蛋分类与对比、不同类型恐龙蛋在地层中的分布研究，将有助于盆地内白垩纪红层的划分，也将为秦岭东段各盆地中同一时期红层的划分与对比、古地理、古环境和古气候等研究提供更加翔实的古生物学证据。
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| 关 键 词： | 树枝蛋类 恐龙蛋 上白垩统 淅川盆地 河南省 |
| 收稿时间： | 2020/7/12 0:00:00 |
| 修稿时间： | 2020/7/20 0:00:00 |
A new oospecies of dinosaur eggs from the Upper Cretaceous in the Xichuan Basin, Henan Province |
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| JIA Songhai,FANG Kaiyong,GAO Diansong,GAO Yongli,CHANG Huali,CHANG Fei,XIAO Le,YANG Lili,ZHENG Yalin,ZHU Xufeng,WANG Qiang,WANG Xiaolin.A new oospecies of dinosaur eggs from the Upper Cretaceous in the Xichuan Basin, Henan Province[J].Acta Geologica Sinica,2020,94(10):2816-2822. |
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| Authors: | JIA Songhai FANG Kaiyong GAO Diansong GAO Yongli CHANG Huali CHANG Fei XIAO Le YANG Lili ZHENG Yalin ZHU Xufeng WANG Qiang WANG Xiaolin |
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| Institution: | 1) Henan Geological Museum, Zhengzhou, 450016;2) Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044;3) Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Beijing, 100044;2) Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044;3) Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Beijing, 100044;4) College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049 |
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| Abstract: | The discovery and research of dinosaur eggs in Xichuan basin began in 1974. Dinosaur eggs in Xichuan basin have very high diversity. There are 4 oofamilies, 6 oogenera and 6 oospecies, especially dendroolithids. In recent years, during the investigation of geoheritages in Henan Province by Henan Geological Museum, some new types of dinosaur eggs have been found again in Xichuan basin. Here we describe one of them. According to the following characteristics: the shell unit is an irregular branch with multi branches, the eggshell thickness is 1.62~1.74 mm, the cone gap is obvious, the shell unit begins to branch from the upper part of the cone, the middle part of the eggshell has 3~4 branches, and a fusion layer is formed near the outer surface of the eggshell, and the eggshell has complex pore system, we establish a new oospecies Dendroolithus dashiqiaoensis oosp. nov. Studying the classification and correlation of dinosaur eggs in Xichuan basin, the distribution of different types of dinosaur eggs in the strata, it will promotes the division of red beds in the basin, which will provide more detailed paleobiological evidence for the division and correlation of red beds, paleogeography, paleoenvironment and paleoclimate in the different Mesozoic basins in the eastern Qinling Mountains. |
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| Keywords: | Dendroolihid Dinosaur eggs Late Cretaceous Xichuan Basin Hean Province |
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