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dc.contributor.authorCerda, Ignacio Alejandro-
dc.contributor.authorCasal, Gabriel A.-
dc.contributor.authorMartínez, Rubén D.-
dc.contributor.authorIbiricu, Lucio M.-
dc.date.accessioned2019-07-29T15:58:24Z-
dc.date.available2019-07-29T15:58:24Z-
dc.date.issued2015-09-
dc.identifier.citationCerda, Ignacio A., Casal, Gabriel A., Martínez, Rubén D., Ibiricu, Lucio M. (2015). Histological evidence for a supraspinous ligament in sauropod dinosaurs. Royal Society; Royal Society Open Science; 2; 10; pp. 1-17es_ES
dc.identifier.issn2054-5703es_ES
dc.identifier.urihttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/2616-
dc.format.extentP. 1-17es_ES
dc.format.mediumimpresoes_ES
dc.format.mediumdigitales_ES
dc.language.isoenes_ES
dc.titleHistological evidence for a supraspinous ligament in sauropod dinosaurses_ES
dc.typeArticuloes_ES
dc.rights.licensehttps://creativecommons.org/licenses/by-nc-sa/4.0/es_ES
dc.description.filiationFil: Cerda, Ignacio A. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentinaes_ES
dc.description.filiationFil: Cerda, Ignacio A. Instituto de Investigación en Paleobiología y Geología; Argentinaes_ES
dc.description.filiationFil: Cerda, Ignacio A. Universidad Nacional de Río Negro; Argentinaes_ES
dc.description.filiationFil: Casal, Gabriel A. Universidad Nacional de la Patagonia; Argentinaes_ES
dc.description.filiationFil: Martínez, Rubén D. Universidad Nacional de la Patagonia ; Argentinaes_ES
dc.description.filiationFil: Ibiricu, Lucio M. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentinaes_ES
dc.subject.keywordBone Microstructurees_ES
dc.subject.keywordFunctional Morphologyes_ES
dc.subject.keywordSauropodaes_ES
dc.subject.keywordTitanosauriaes_ES
dc.subject.keywordMetaplastic Bonees_ES
dc.subject.keywordMineralized Fibreses_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.subject.materiaMeteorología y Ciencias Atmosféricases_ES
dc.origin.lugarDesarrolloRoyal Societyes_ES
dc.relation.journalissue2es_ES
dc.description.reviewsies_ES
dc.description.resumenSupraspinous ossified rods have been reported in the sacra of some derived sauropod dinosaurs. Although different hypotheses have been proposed to explain the origin ofthis structure, histological evidence has never been provided to support or reject any of them. In order to establish its origin, we analyse and characterize the microstructure of thesupraspinous rod of two sauropod dinosaurs from the Upper Cretaceous of Argentina. The supraspinous ossified rod is almost entirely formed by dense Haversian bone. Remains ofprimary bone consist entirely of an avascular tissue composed of two types of fibre-like structures, which are coarse and longitudinally (parallel to the main axis of the element) oriented. These structures are differentiated on the basis of their optical properties under polarized light. Very thin fibrous strands are also observed in some regions. These small fibres are all oriented parallel to one another but perpendicular to the element main axis. Histological features of the primary bone tissue indicate that the sacral supraspinous rod corresponds to an ossified supraspinous ligament. The formation of this structure appears to have been a non-pathological metaplastic ossification, possibly induced by the continuous tensile forces applied to the element.es_ES
dc.relation.journalTitleRoyal Society Open Sciencees_ES
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