Devonian sea surface temperature and paleoecology changes constrained by in situ oxygen isotopes of fish fossils

doi:10.1016/j.palaeo.2024.112059

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	Devonian sea surface temperature and paleoecology changes constrained by in situ oxygen isotopes of fish fossils
	Lu, Chang 1,3,4; Cui, Xin-Dong 2,5; Chen, Jun 1; Cui, Ze-Xian 1; Zhu, Min2,3 ; Xu, Yi-Gang 1,3,4
	2024-04-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	639 页码:12
通讯作者	Xu, Yi-Gang(yigangxu@gig.ac.cn)
摘要	Significant changes occurred in both terrestrial and marine environments in the Devonian, during which complex terrestrial life radiated rapidly from the ocean. However, the reconstruction of the seawater temperatures for this period is still noticeably insufficient, largely due to a lack of appropriate geological archives especially in freshwater and near-shore marine deposits. In this study, we carried out a detailed characterization of microstructure, elements and isotopes of Early and Late Devonian fish fossils from Yunnan and Ningxia, China, respectively. The results show that fish enamels were relatively more resistant to diagenetic alteration than fossil dentine and bones, and can serve as valuable archives for Paleozoic temperature and ecology reconstruction. In situ oxygen isotopes of the enamel apatite (delta 18O(p)) of Early Devonian fossil fishes (sarcopterygians and antiarchs) vary from 16%o to 18%o, in good agreement with those of contemporaneous conodonts. The corresponding seawater temperatures are calculated to be >30degree celsius, therefore lending support to a greenhouse climate of the Early Devonian. In contrast, Late Devonian fish enamels tend to have lower delta 18Op than those of the contemporaneous conodonts. The difference in delta 18O(p) is attributable to the change in the living environment during the transition of the fish-to-tetrapod.
关键词	Paleotemperature Paleoecology SIMS Oxygen isotope Devonian Fish enamel
DOI	10.1016/j.palaeo.2024.112059
关键词[WOS]	DIAGENETIC ALTERATION ; BIOGENIC APATITES ; CONODONT APATITE ; DELTA-O-18 ; PHOSPHATE ; EVOLUTION ; CARBONATE ; TEETH ; RECONSTRUCTION ; SEAWATER
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42288201] ; PI Project of Southern Marine Science and Engineering Guangzhou Laboratory (Guangzhou)[GML2022006]
项目资助者	National Natural Science Foundation of China ; PI Project of Southern Marine Science and Engineering Guangzhou Laboratory (Guangzhou)
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:001178545500001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/23488
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Xu, Yi-Gang
作者单位	1.Chinese Acad Sci, State Key Lab Isotope Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, CAS Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China 5.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Minist Educ, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Lu, Chang,Cui, Xin-Dong,Chen, Jun,et al. Devonian sea surface temperature and paleoecology changes constrained by in situ oxygen isotopes of fish fossils[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2024,639:12.
APA	Lu, Chang,Cui, Xin-Dong,Chen, Jun,Cui, Ze-Xian,Zhu, Min,&Xu, Yi-Gang.(2024).Devonian sea surface temperature and paleoecology changes constrained by in situ oxygen isotopes of fish fossils.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,639,12.
MLA	Lu, Chang,et al."Devonian sea surface temperature and paleoecology changes constrained by in situ oxygen isotopes of fish fossils".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 639(2024):12.