Geochemical characteristics of newly discovered Elongatoolithidae eggs from the Upper Cretaceous of Jiangxi Province, southern China: Palaeoenvironmental and palaeoclimatic inferences
文献类型：期刊论文
| 作者 | He, Qing1; Jiang, Qin1; Xing, Lida2,3; Zhang, Shukang4; Pang, Wenjing5; Hu, Hui6; Lu, Shuo7; Yin, Qifeng1 |
| 刊名 | CRETACEOUS RESEARCH
 |
| 出版日期 | 2019-07-01 |
| 卷号 | 99页码:352-364 |
| 关键词 | Dinosaur eggs Trace elements Stable isotopes Palaeoenvironment Late Cretaceous Yudu County Jiangxi Province |
| ISSN号 | 0195-6671 |
| DOI | 10.1016/j.cretres.2018.12.015 |
| 通讯作者 | He, Qing(heqing@ahu.edu.cn) |
| 英文摘要 | We analyzed identified oospecies and associated geochemical characteristics of newly discovered dinosaur eggs from the Cretaceous Hekou Formation in Yudu District, Jiangxi Province, China. Results reveal that the Yudu eggs can be identified as representatives of the known oospecies Macroolithus rugustus within Elongatoolithidae based on external shape, size, ornamentation, and internal microstructure between the columnar and cone layers. The major element found in Macroolithus rugustus shells is Ca, while trace elements mainly include Sr, Ba, As, Cr, Mn, Pb, Cd, La, and IL characterised by Ir and Sr abnormalities, as well as the toxic elements As and Pb. Enrichment of trace elements in shells might be due to the diet of dinosaurs and subsequent deposition in eggs, consistent with global Ir anomalies and the regional enrichment of trace elements. delta C-13 values for Macroolithus rugustus ranging between -8.81 parts per thousand and -7.65 parts per thousand are indicative of C3 plants with relatively high CO2 concentration and low mean annual precipitation (MAP), while delta O-18 values ranging between -8.51 parts per thousand and 3.14 parts per thousand indicate relatively low humidity and the alteration of water sources of female dinosaur. The Sr and Ca contents as well as delta O-18 values of eggshells could be associated with the drinking water and food materials together with dissolved bone apatite. In light of the red-brown colour of surrounding rocks, high Fe composition revealed by macroelement analysis, and the presence of a C3 vegetation with low MAP, the palaeoenvironment of Yudu dinosaur nesting area was most likely to be fluvial and the palaeoclimate was semi-arid to arid, which is conducive to the preservation of eggs. (C) 2019 Elsevier Ltd. All rights reserved. |
| WOS关键词 | STABLE-ISOTOPES ; DINOSAUR EGGSHELLS ; NANXIONG BASIN ; TOOTH ENAMEL ; LATE MIOCENE ; HATEG BASIN ; CARBON ; RECONSTRUCTION ; EXTINCTION ; EXPANSION |
| 资助项目 | National Natural Science Foundation of China[41802006] ; National Natural Science Foundation of China[41807296] ; National Natural Science Foundation of China[41602173] ; University Natrual Science Research Project of Anhui Province[KJ2018A0005] ; University Natrual Science Research Project of Anhui Province[KJ2017A036] ; Natural Science Foundation of Anhui Province[1708085QD86] |
| WOS研究方向 | Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000466823200029 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; University Natrual Science Research Project of Anhui Province ; Natural Science Foundation of Anhui Province |
| 源URL | [http://119.78.100.205/handle/311034/9720]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | He, Qing |
| 作者单位 | 1.Anhui Univ, Sch Resources & Environm Engn, Hefei 230601, Anhui, Peoples R China 2.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China 3.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 4.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 5.261 Brigade Jiangxi Nucl Ind Geol Bur, Yingtan 335000, Jiangxi, Peoples R China 6.264 Brigade Jiangxi Nucl Ind Geol Bur, Ganzhou 341000, Jiangxi, Peoples R China 7.Anhui Earthquake Adm, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Qing,Jiang, Qin,Xing, Lida,et al. Geochemical characteristics of newly discovered Elongatoolithidae eggs from the Upper Cretaceous of Jiangxi Province, southern China: Palaeoenvironmental and palaeoclimatic inferences[J]. CRETACEOUS RESEARCH,2019,99:352-364. |
| APA | He, Qing.,Jiang, Qin.,Xing, Lida.,Zhang, Shukang.,Pang, Wenjing.,...&Yin, Qifeng.(2019).Geochemical characteristics of newly discovered Elongatoolithidae eggs from the Upper Cretaceous of Jiangxi Province, southern China: Palaeoenvironmental and palaeoclimatic inferences.CRETACEOUS RESEARCH,99,352-364. |
| MLA | He, Qing,et al."Geochemical characteristics of newly discovered Elongatoolithidae eggs from the Upper Cretaceous of Jiangxi Province, southern China: Palaeoenvironmental and palaeoclimatic inferences".CRETACEOUS RESEARCH 99(2019):352-364. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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