000135767 001__ 135767
000135767 005__ 20240614091948.0
000135767 0247_ $$2doi$$a10.1016/j.gsf.2024.101872
000135767 0248_ $$2sideral$$a138808
000135767 037__ $$aART-2024-138808
000135767 041__ $$aeng
000135767 100__ $$0(orcid)0000-0003-0900-1440$$aEzquerro, L.
000135767 245__ $$aLarge dinosaur egg accumulations and their significance for understanding nesting behaviour
000135767 260__ $$c2024
000135767 5060_ $$aAccess copy available to the general public$$fUnrestricted
000135767 5203_ $$aThe accurate identification of dinosaur egg accumulations as nests or clutches is crucial for understanding the reproductive behaviour of these extinct species. However, existing methods often rely on the presence of complete eggs and embryo remains, and sedimentological criteria that are only applicable to well-structured sediments. In this study, we introduce an innovative approach to characterize egg accumulations in structureless sediments, where traditional nest structures may not be preserved. Our methodology employs a unique combination of sedimentological, taphonomic, geochemical, and geophysical proxies for the study of egg accumulations. We applied this approach to the egg accumulation from Paimogo (Jurassic, Portugal), traditionally interpreted as a nest. Our findings reveal that the Paimogo egg assemblage is a secondary deposit, resulting from a flooding event in a fluvial plain that dismantled several allosauroid and crocodylomorph clutches. The eggshell vapor conductance results, coupled with sedimentological evidence, suggest that allosauroid dinosaurs buried their eggs in the dry terrain of overbank areas close to a main channel during the breeding season, likely during the dry season to prevent the embryos from drowning. This research underscores the necessity of multidisciplinary approaches in interpreting egg accumulations and offers a novel methodology for studying these accumulations in structureless sediments. Our findings provide new insights into the breeding behaviour and nesting preferences of these extinct organisms, contributing to our understanding of dinosaur ecology.
000135767 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/FJCI-2020-044561-I$$9info:eu-repo/grantAgreement/ES/MICINN/PLEC2021-008203/AEI/10.13039/501100011033$$9info:eu-repo/grantAgreement/ES/MICINN/RYC2021-034473-I
000135767 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000135767 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000135767 700__ $$aCoimbra, R.
000135767 700__ $$0(orcid)0000-0002-4970-6333$$aBauluz, B.$$uUniversidad de Zaragoza
000135767 700__ $$0(orcid)0000-0002-2882-6061$$aNúñez-Lahuerta, C.
000135767 700__ $$0(orcid)0000-0002-9743-8695$$aRomán-Berdiel, T.$$uUniversidad de Zaragoza
000135767 700__ $$0(orcid)0000-0002-7210-1033$$aMoreno-Azanza, M.$$uUniversidad de Zaragoza
000135767 7102_ $$12000$$2655$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Paleontología
000135767 7102_ $$12000$$2428$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Geodinámica Interna
000135767 7102_ $$12000$$2120$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Cristalografía Mineralog.
000135767 773__ $$g15, 5 (2024), 101872 [22 pp.]$$pGeosci. Front.$$tGeoscience Frontiers$$x1674-9871
000135767 8564_ $$s14160186$$uhttps://zaguan.unizar.es/record/135767/files/texto_completo.pdf$$yVersión publicada
000135767 8564_ $$s2812241$$uhttps://zaguan.unizar.es/record/135767/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000135767 909CO $$ooai:zaguan.unizar.es:135767$$particulos$$pdriver
000135767 951__ $$a2024-06-14-08:59:57
000135767 980__ $$aARTICLE