PRELIMINARY INVESTIGATION OF SEASONAL PATTERNS RECORDED IN THE OXYGEN ISOTOPE COMPOSITIONS OF THEROPOD DINOSAUR TOOTH ENAMEL

doi:10.2110/palo.2015.018

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	PRELIMINARY INVESTIGATION OF SEASONAL PATTERNS RECORDED IN THE OXYGEN ISOTOPE COMPOSITIONS OF THEROPOD DINOSAUR TOOTH ENAMEL
	Goedert, Jean 1,2; Amiot, Romain 1,2; Boudad, Larbi 3; Buffetaut, Eric 4; Fourel, Francois 1,2; Godefroit, Pascal 5; Kusuhashi, Nao 6; Suteethorn, Varavudh 7; Tong, Haiyan 7,8; Watabe, Mahito 9
刊名	PALAIOS
	2016
卷号	31 期号:1 页码:10-19
DOI	10.2110/palo.2015.018
文献子类	Article
英文摘要	Oxygen isotope compositions of tooth enamel increments in theropod dinosaurs are investigated as potential climate seasonality. Six teeth of large carnivorous theropods collected from four Cretaceous formations deposited under contrasted climates have been sampled. These teeth have been analyzed for the oxygen isotope compositions of their apatite phosphate (delta O-18(p)) through incremental sampling performed along the major growth axis. Significant fluctuations in oxygen isotope compositions along the growth axis of each tooth are observed and interpreted as reflecting seasonality in ingested local surface water delta O-18(w) values. Fluctuations in delta O-18(p) values of theropod teeth from the Aptian of Thailand and Cenomanian of Morocco vary similarly to meteoric water d delta O-18(mw) values occurring today in sub-tropical regions subjected to large seasonal amounts of precipitations. A dinosaur tooth recovered from the more inland and mid-latitude Nemegt Formation of Mongolia shows a seasonal pattern similar to present-day cold temperate and continental climate. Finally, the high latitude and coastal Kakanaut Formation (Russia) experienced strongly dampened seasonal variations, most likely due to the influence of warm Pacific oceanic currents. Such conditions occur today in high latitude regions submitted to marine influence. These results further highlight the potential of using the oxygen isotope compositions of large theropod teeth to reconstruct past seasonal variations of terrestrial climates. Increased knowledge of past seasonality may help to better understand the complex interactions between climate and the dynamics of land biodiversity in terms of ecological adaptations, biogeography and the evolutionary history of organisms.
WOS关键词	MIDCRETACEOUS WATER BEARER ; CEDAR-MOUNTAIN FORMATION ; EAST-ASIAN DINOSAURS ; RED-BED SEQUENCES ; DELTA-O-18 RECORD ; BIOGENIC APATITES ; HYDROLOGIC-CYCLE ; STABLE-ISOTOPES ; POLAR DINOSAURS ; KHORAT GROUP
WOS研究方向	Geology ; Paleontology
语种	英语
WOS记录号	WOS:000369157200001
内容类型	期刊论文
源URL	[http://124.16.247.212/handle/311034/7138]
专题	古脊椎动物与古人类研究所_图书馆1
作者单位	1.Univ Lyon 1, CNRS, UMR 5276, 2 Rue Raphael Dubois, F-69622 Villeurbanne, France 2.Ecole Normale Super Lyon, 2 Rue Raphael Dubois, F-69622 Villeurbanne, France 3.Univ Moulay Ismail, Lab Geosci & Patrimoine, BP 11201, Zitoune 50070, Meknes, Morocco 4.Ecole Normale Super, CNRS, UMR 8538, 24 Rue Lhomond, F-75231 Paris 05, France 5.Royal Belgian Inst Nat Sci, Directorate Earth & Hist Life, 29 Rue Vautier, B-1000 Brussels, Belgium 6.Ehime Univ, Grad Sch Sci & Engn, Dept Earths Evolut & Environm, 2-5 Bunkyo Cho, Matsuyama, Ehime 7908577, Japan 7.Mahasarakham Univ, Palaeontol Res & Educ Ctr, Kantarawichai 44150, Mahasarakham, Thailand 8.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, 142 Xi Zhi Men Wai DaJie, Beijing 100044, Peoples R China 9.Osaka City Univ, Dept Earth Sci, Osaka 5588585, Japan 10.Inst Univ France, 103 Blvd St Michel, F-75005 Paris, France
推荐引用方式 GB/T 7714	Goedert, Jean,Amiot, Romain,Boudad, Larbi,et al. PRELIMINARY INVESTIGATION OF SEASONAL PATTERNS RECORDED IN THE OXYGEN ISOTOPE COMPOSITIONS OF THEROPOD DINOSAUR TOOTH ENAMEL[J]. PALAIOS,2016,31(1):10-19.
APA	Goedert, Jean.,Amiot, Romain.,Boudad, Larbi.,Buffetaut, Eric.,Fourel, Francois.,...&Lecuyer, Christophe.(2016).PRELIMINARY INVESTIGATION OF SEASONAL PATTERNS RECORDED IN THE OXYGEN ISOTOPE COMPOSITIONS OF THEROPOD DINOSAUR TOOTH ENAMEL.PALAIOS,31(1),10-19.
MLA	Goedert, Jean,et al."PRELIMINARY INVESTIGATION OF SEASONAL PATTERNS RECORDED IN THE OXYGEN ISOTOPE COMPOSITIONS OF THEROPOD DINOSAUR TOOTH ENAMEL".PALAIOS 31.1(2016):10-19.