| High-Latitude Dinosaur Nesting Strategies during the Latest Cretaceous in North-Eastern Russia | |
| Amiot, Romain; Golovneva, Lina B.; Godefroit, Pascal2; Goedert, Jean3; Garcia, Geraldine4; Lecuyer, Christophe; Fourel, Francois5; Herman, Alexei B.; Spicer, Robert A. | |
| 2023 | |
| Source Publication | DIVERSITY-BASEL
 |
| ISSN | 1424-2818 |
| Volume | 15Issue:4Pages:- |
| Abstract | Dinosaur eggshell fragments attributed to the oofamilies Spheroolithidae and Prismatoolithidae and recovered from the latest Cretaceous Kakanaut Formation of North-eastern Russia (Chukotka) constitute one of the northernmost records of dinosaur reproductive behaviors. The high palaeolatitude of the locality (similar to 75 degrees N), as well as the cool near-polar climate, where summer temperatures only averaged 20 degrees C during the warmest month, dark near-freezing winters and egg incubation that could have lasted several months, raise questions about dinosaur reproductive strategies, particularly in terms of the timing of egg laying. In order to investigate seasonal aspects of Kakanaut dinosaur reproductions, carbonate from eggshell fragments have been analyzed for their oxygen and carbon isotope compositions, along with the oxygen and carbon isotope compositions of apatite phosphate and structural carbonate of associated theropod, hadrosaur and ankylosaur teeth as well as lepisosteid fish scales. Stable oxygen and carbon isotope compositions of eggshells from the Kakanaut Formation together with those of associated adult dinosaur teeth and fish scales reveal differences in mineralization timing between eggshells and teeth and show that eggs were laid at the very beginning of spring when snowmelt drained from nearby highlands. We propose that Kakanaut dinosaurs laid their eggs at the very beginning of spring in order to accommodate an incubation period that lasted several months. This timing would also benefit from mild temperatures and increasing food availability when the eggs hatch, allowing the hatchlings to grow large enough to survive the next winter or perhaps follow adult animals in their migration southwards. |
| Keyword | OXYGEN-ISOTOPE FRACTIONATION POLAR DINOSAURS CARBONATE PHOSPHATE WATER DELTA-O-18 GROWTH BONE DIET REPRODUCTION |
| Subject Area | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| DOI | 10.3390/d15040565 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000979229700001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/13456 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.Univ Claude Bernard Lyon1, Ecole Normale Super Lyon, Terre Planetes & Environm TPE, Lab Geol Lyon,CNRS UMR 5276, F-69622 Villeurbanne, France 2.Golovneva, Lina B.] Russian Acad Sci, VL Komarov Bot Inst, St Petersburg 197376, Russia 3.Royal Belgian Inst Nat Sci, Directorate Earth & Hist Life, rue Vautier 29, B-1000 Brussels, Belgium 4.Sorbonne Univ, Ctr Rech Paleontol Paris CR2P, Museum Natl Hist Nat, CNRS, CP 38,57 rue Cuvier, F-75231 Paris, France 5.Univ Poitiers, IPHEP, UMR CNRS 7262, UFR SFA, Bat B35,6 rue M Brunet,TSA 51106, F-86073 Poitiers 9, France 6.Univ Claude Bernard Lyon 1, Lab Ecol Hydrosyst Nat & Anthropises LEHNA, UMR CNRS 5023, F-69100 Villeurbanne, France 7.Herman, Alexei B.] Russian Acad Sci, Geol Inst, Moscow 119017, Russia 8.Spicer, Robert A.] Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Beijing 666303, Peoples R China 9.Spicer, Robert A.] Open Univ, Sch Environm Earth & Ecosyst Sci, Milton Keynes MK7 6AA, England |
| Recommended Citation GB/T 7714 | Amiot, Romain,Golovneva, Lina B.,Godefroit, Pascal,et al. High-Latitude Dinosaur Nesting Strategies during the Latest Cretaceous in North-Eastern Russia[J]. DIVERSITY-BASEL,2023,15(4):-. |
| APA | Amiot, Romain.,Golovneva, Lina B..,Godefroit, Pascal.,Goedert, Jean.,Garcia, Geraldine.,...&Spicer, Robert A..(2023).High-Latitude Dinosaur Nesting Strategies during the Latest Cretaceous in North-Eastern Russia.DIVERSITY-BASEL,15(4),-. |
| MLA | Amiot, Romain,et al."High-Latitude Dinosaur Nesting Strategies during the Latest Cretaceous in North-Eastern Russia".DIVERSITY-BASEL 15.4(2023):-. |
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| High-Latitude Dinosa（5466KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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