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dc.contributor.authorIbiricu, Lucio M.-
dc.contributor.authorCasal, Gabriel A.-
dc.contributor.authorAlvarez, Bruno N.-
dc.contributor.authorDe Sosa Tomas, Andrea-
dc.contributor.authorLamanna, Matthew C.-
dc.contributor.authorCruzado Caballero, Penelope-
dc.date.accessioned2024-02-22T13:10:20Z-
dc.date.available2024-02-22T13:10:20Z-
dc.date.issued2021-10-
dc.identifier.citationIbiricu, L. M., Casal, G. A., Alvarez, B. N., Tomas, A. D. S., Lamanna, M. C., & Cruzado-Caballero, P. (2021). New hadrosaurid (Dinosauria: Ornithopoda) fossils from the uppermost Cretaceous of central Patagonia and the influence of paleoenvironment on South American hadrosaur distribution. Journal of South American Earth Sciences, 110, 103369.es_ES
dc.identifier.issn0895-9811es_ES
dc.identifier.urihttp://rid.unrn.edu.ar/handle/20.500.12049/11367-
dc.description.abstractWe describe and incorporate fragmentary new cranial and postcranial materials of hadrosaurid ornithopods into the non-avian dinosaur assemblage of the Upper Cretaceous (Coniacian–Maastrichtian) Lago Colhué Huapi Formation of central Patagonia, south-central Chubut Province, Argentina. The fossils come from the upper part of the formation, probably from a stratigraphic interval close to the Cretaceous/Paleogene boundary. The materials belong to at least two ontogenetically distinct individuals that are assigned to Hadrosauridae due to their possession of anatomical features that characterize this derived ornithopod group. Sedimentological inferences reveal that the paleoenvironment of these hadrosaurids was characterized by high-sinuosity, meandering-type fluvial channels, whereas palynological data suggest the existence of low-energy freshwater bodies in the floodplains of these rivers and a warm and humid paleoclimate. The deposition of the upper part of the Lago Colhué Huapi Formation was probably influenced by the Patagonian Atlantic marine transgression, which may have played an important role in the distribution of this sedimentary unit. The new Lago Colhué Huapi Formation hadrosaurid specimens constitute the most stratigraphically recent records of this clade from Argentina. The materials contribute to the interpretation of Upper Cretaceous hadrosaurid paleobiogeography in Patagonian basins; moreover, sedimentological and palynological data suggest that paleoenvironmental conditions may have exerted an important influence on South American hadrosaur distribution, supporting hypotheses of ornithopod faunal turnover during the Late Cretaceous of central Patagonia. Finally, the new remains add to the generally depauperate record of Late Cretaceous ornithopods in the Southern Hemisphere.es_ES
dc.format.extentp. 1-17es_ES
dc.language.isoenes_ES
dc.publisherPergamon-Elsevier Science Ltdes_ES
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0895981121002169?via%3Dihubes_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/-
dc.titleNew hadrosaurid (Dinosauria: Ornithopoda) fossils from the uppermost Cretaceous of central Patagonia and the influence of paleoenvironment on South American hadrosaur distributiones_ES
dc.typeArticuloes_ES
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-ND 4.0)-
dc.description.filiationIbiricu, Lucio M. Instituto Patagónico de Geología y Paleontología (IPGP-CCT CONICET-CENPAT); Laboratorio de Paleontología de Vertebrados, Universidad Nacional de la Patagonia San Juan Boscoes_ES
dc.description.filiationCasal, Gabriel A. Laboratorio de Paleontología de Vertebrados, Universidad Nacional de la Patagonia San Juan Bosco; Laboratorio de Bioestratigrafía “Dr. Eduardo Musacchio,” Departamento de Geología, Universidad Nacional de la Patagonia San Juan Boscoes_ES
dc.description.filiationAlvarez, Bruno N. Laboratorio de Paleontología de Vertebrados, Universidad Nacional de la Patagonia San Juan Bosco; Centro de Investigaciones y Transferencia Golfo San Jorge, Ciudad Universitariaes_ES
dc.description.filiationLamanna, Mattehw C. Section of Vertebrate Paleontology, Carnegie Museum of Natural History, 4400 Forbes Avenue, Pittsburgh, Pennsylvania 15213 USAes_ES
dc.description.filiationCruzado Caballero, Penélope. Instituto de Investigación en Paleobiología y Geología (IIPG); Universidad Nacional de Río Negro-IIPGes_ES
dc.subject.keywordHADROSAURIDAEes_ES
dc.subject.keywordLATE CRETACEOUSes_ES
dc.subject.keywordLAGO COLHUE HUAPI FORMATIONes_ES
dc.subject.keywordPATAGONIAes_ES
dc.subject.keywordARGENTINAes_ES
dc.subject.keywordPALEOBIOGEOGRAPHYes_ES
dc.subject.keywordPALEOENVIRONMENTes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.subject.materiaPaleontologíaes_ES
dc.origin.lugarDesarrolloInstituto de Investigación en Paleobiología y Geología IIPG-UNRN-CONICETes_ES
dc.relation.journalissue110es_ES
dc.description.reviewtruees_ES
dc.description.resumenWe describe and incorporate fragmentary new cranial and postcranial materials of hadrosaurid ornithopods into the non-avian dinosaur assemblage of the Upper Cretaceous (Coniacian–Maastrichtian) Lago Colhué Huapi Formation of central Patagonia, south-central Chubut Province, Argentina. The fossils come from the upper part of the formation, probably from a stratigraphic interval close to the Cretaceous/Paleogene boundary. The materials belong to at least two ontogenetically distinct individuals that are assigned to Hadrosauridae due to their possession of anatomical features that characterize this derived ornithopod group. Sedimentological inferences reveal that the paleoenvironment of these hadrosaurids was characterized by high-sinuosity, meandering-type fluvial channels, whereas palynological data suggest the existence of low-energy freshwater bodies in the floodplains of these rivers and a warm and humid paleoclimate. The deposition of the upper part of the Lago Colhué Huapi Formation was probably influenced by the Patagonian Atlantic marine transgression, which may have played an important role in the distribution of this sedimentary unit. The new Lago Colhué Huapi Formation hadrosaurid specimens constitute the most stratigraphically recent records of this clade from Argentina. The materials contribute to the interpretation of Upper Cretaceous hadrosaurid paleobiogeography in Patagonian basins; moreover, sedimentological and palynological data suggest that paleoenvironmental conditions may have exerted an important influence on South American hadrosaur distribution, supporting hypotheses of ornithopod faunal turnover during the Late Cretaceous of central Patagonia. Finally, the new remains add to the generally depauperate record of Late Cretaceous ornithopods in the Southern Hemisphere.es_ES
dc.identifier.doihttps://doi.org/10.1016/j.jsames.2021.103369-
dc.relation.journalTitleJournal of South American Earth Scienceses_ES
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