Micro-XRF Study of the Troodontid Dinosaur Jianianhualong tengi Reveals New Biological and Taphonomical Signals

doi:10.46770/AS.2021.01.001

CORC > 古脊椎动物与古人类研究所 > 中国科学院古脊椎动物与古人类研究所 > 图书馆1

	Micro-XRF Study of the Troodontid Dinosaur Jianianhualong tengi Reveals New Biological and Taphonomical Signals
	Li, Jinhua 6,7; Pei, Rui 3,4,5; Teng, Fangfang 2; Qiu, Hao 7; Tagle, Roald 1; Yan, Qiqi 1; Wang, Qiang 4,5; Chu, Xuelei 7; Xu, Xing 4,5
刊名	ATOMIC SPECTROSCOPY
	2021
卷号	42 期号:1 页码:1-11
ISSN号	0195-5373
DOI	10.46770/AS.2021.01.001
通讯作者	Xu, Xing(xu.xing@ivpp.ac.cn)
英文摘要	Jianianhualong tengi is a key taxon for understanding the evolution of pennaceous feathers as well as of troodontid theropods. It is known by only the holotype. which was recovered from the Lower Cretaceous Yixian Formation of western Liaoning. China. In this study, we carried out a large-area micro-X-Ray fluorescence (micro-XRF) analysis of the holotype ofJiortior/ma/ortg lengi via a Brucker M6 Jetstream mobile XRF scanner. The elemental distribution measurements of the specimen show an enrichment of typical bone-associated elements. such as S, P and Ca, which allows to visualize the fossil structure. Additionally, the bones are enriched with several heavier elements. such as Sr, Th, Y and Ce relative to the surrounding rocks. The enrichment is most likely associated to secondary mineralization and the phosphates from the bones. Interestingly, the plumage shape correlates with an enrichment in elements. such as Cu, Ni and Ti, consistent with the findings of a previous study' on Archaeoptetyx using synchrotron imaging. Elemental variations among the skeleton, the unguis and the sheath blade further indicate their possible compositional or ultrastructural differences, providing new biological and taphonomic information on the fossilized keratinous structures. An in-situ and nondestructive micro-XRF analysis is currently the most ideal way to map the chemistry of meter-sized fossils and has so far been mainly restricted to small samples. Micro-spatial chemical analysis of larger samples usually required a synchrotron facility. Our study demonstrated that a laboratory-based large-area micro-XRF scanner can provide a practical tool for the study of large specimens, thus allowing to collect full chemical data in order to obtain a better understanding of evolutionary and taphonomic processes.
资助项目	National Natural Science Foundation of China[41890843] ; National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41920104009] ; National Natural Science Foundation of China[41621004] ; National Natural Science Foundation of China[41972025] ; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology[MGQNLM201704] ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[193122]
WOS关键词	EARLY EVOLUTION ; PRESERVATION ; FEATHERS ; CHEMISTRY ; THEROPOD ; BONE ; TOOL
WOS研究方向	Spectroscopy
语种	英语
出版者	ATOMIC SPECTROSCOPY PRESS LTD
WOS记录号	WOS:000610824800001
资助机构	National Natural Science Foundation of China ; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/18707]
专题	古脊椎动物与古人类研究所_图书馆1
通讯作者	Xu, Xing
作者单位	1.Bruker Nano GmbH, Studio 2D, D-12489 Berlin, Germany 2.Xinghai Paleontol Museum Dalian, Dalian 116023, Liaoning, Peoples R China 3.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 4.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 6.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 7.Chinese Acad Sci, Key Lab Earth & Planetary Phys, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Li, Jinhua,Pei, Rui,Teng, Fangfang,et al. Micro-XRF Study of the Troodontid Dinosaur Jianianhualong tengi Reveals New Biological and Taphonomical Signals[J]. ATOMIC SPECTROSCOPY,2021,42(1):1-11.
APA	Li, Jinhua.,Pei, Rui.,Teng, Fangfang.,Qiu, Hao.,Tagle, Roald.,...&Xu, Xing.(2021).Micro-XRF Study of the Troodontid Dinosaur Jianianhualong tengi Reveals New Biological and Taphonomical Signals.ATOMIC SPECTROSCOPY,42(1),1-11.
MLA	Li, Jinhua,et al."Micro-XRF Study of the Troodontid Dinosaur Jianianhualong tengi Reveals New Biological and Taphonomical Signals".ATOMIC SPECTROSCOPY 42.1(2021):1-11.