Geochemical characteristics of newly discovered Elongatoolithidae eggs from the Upper Cretaceous of Jiangxi Province, southern China: Palaeoenvironmental and palaeoclimatic inferences

doi:10.1016/j.cretres.2018.12.015

IVPP-IR > 中科院古脊椎所（2000年以后）

	Geochemical characteristics of newly discovered Elongatoolithidae eggs from the Upper Cretaceous of Jiangxi Province, southern China: Palaeoenvironmental and palaeoclimatic inferences
	He, Qing 1; Jiang, Qin 1; Xing, Lida 2,3; Zhang, Shukang 4; Pang, Wenjing 5; Hu, Hui 6; Lu, Shuo 7; Yin, Qifeng 1
	2019-07-01
发表期刊	CRETACEOUS RESEARCH
ISSN	0195-6671
卷号	99 页码:352-364
通讯作者	He, Qing(heqing@ahu.edu.cn)
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.
关键词	Dinosaur eggs Trace elements Stable isotopes Palaeoenvironment Late Cretaceous Yudu County Jiangxi Province
DOI	10.1016/j.cretres.2018.12.015
关键词[WOS]	STABLE-ISOTOPES ; DINOSAUR EGGSHELLS ; NANXIONG BASIN ; TOOTH ENAMEL ; LATE MIOCENE ; HATEG BASIN ; CARBON ; RECONSTRUCTION ; EXTINCTION ; EXPANSION
收录类别	SCI
语种	英语
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]
项目资助者	National Natural Science Foundation of China ; University Natrual Science Research Project of Anhui Province ; Natural Science Foundation of Anhui Province
WOS研究方向	Geology ; Paleontology
WOS类目	Geology ; Paleontology
WOS记录号	WOS:000466823200029
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/9721
专题	中科院古脊椎所（2000年以后）
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.