Show simple item record Fernández, Mariela Garcia, Rodolfo Andres Fiorelli, Lucas Ernesto Scolaro, Jose Alejandro Salvador, Rodrigo B. Cotaro, Carlos N. Kaiser, Gary W. Dyke, Gareth J. 2016-10-26T21:19:24Z 2013-01
dc.identifier.citation Fernández, Mariela; Garcia, Rodolfo Andres; Fiorelli, Lucas Ernesto; Scolaro, Jose Alejandro; Salvador, Rodrigo B.; et al.; A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds; Public Library Of Science; Plos One; 8; 4; 1-2013; 1-22
dc.identifier.issn 1932-6203
dc.description.abstract We report the first evidence for a nesting colony of Mesozoic birds on Gondwana: a fossil accumulation in Late Cretaceous rocks mapped and collected from within the campus of the National University of Comahue, Neuquén City, Patagonia (Argentina). Here, Cretaceous ornithothoracine birds, almost certainly Enanthiornithes, nested in an arid, shallow basinal environment among sand dunes close to an ephemeral water-course. We mapped and collected 65 complete, near-complete, and broken eggs across an area of more than 55 m2. These eggs were laid either singly, or occasionally in pairs, onto a sandy substrate. All eggs were found apparently in, or close to, their original nest site; they all occur within the same bedding plane and may represent the product of a single nesting season or a short series of nesting attempts. Although there is no evidence for nesting structures, all but one of the Comahue eggs were half-buried upright in the sand with their pointed end downwards, a position that would have exposed the pole containing the air cell and precluded egg turning. This egg position is not seen in living birds, with the exception of the basal galliform megapodes who place their eggs within mounds of vegetation or burrows. This accumulation reveals a novel nesting behaviour in Mesozoic Aves that was perhaps shared with the non-avian and phylogenetically more basal troodontid theropods.
dc.format application/pdf
dc.language.iso eng
dc.publisher Public Library Of Science
dc.rights info:eu-repo/semantics/openAccess
dc.subject Nesting colony
dc.subject Ornithothoracines
dc.subject Enantiornithes
dc.subject Late Cretaceous
dc.subject Patagonia
dc.subject Argentina
dc.subject.classification Paleontología
dc.subject.classification Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title A large accumulation of avian eggs from the Late Cretaceous of Patagonia (Argentina) reveals a novel nesting strategy in Mesozoic birds
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion 2016-04-28T14:52:55Z
dc.journal.volume 8
dc.journal.number 4
dc.journal.pagination 1-22
dc.journal.pais Estados Unidos
dc.journal.ciudad San Francisco
dc.description.fil Fil: Fernández, Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina
dc.description.fil Fil: Garcia, Rodolfo Andres. Universidad Nacional de Rio Negro. Sede Alto Valle. Instituto de Investigaciones En Paleobiologia y Geologia; Argentina
dc.description.fil Fil: Fiorelli, Lucas Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Cientificas y Transferencia Tecnológica de Anillaco; Argentina
dc.description.fil Fil: Scolaro, Jose Alejandro. Universidad Nacional de la Patagonia "san Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
dc.description.fil Fil: Salvador, Rodrigo B.. Universidade de Sao Paulo. Instituto Quã­mica de Sao Carlos; Brasil
dc.description.fil Fil: Cotaro, Carlos N.. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
dc.description.fil Fil: Kaiser, Gary W.. Royal British Columbia Museum; Canadá
dc.description.fil Fil: Dyke, Gareth J.. University Of Southampton; Reino Unido
dc.journal.title Plos One
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/

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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution 2.5 Unported (CC BY 2.5)