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dc.contributor.authorCerda, Ignacio Alejandro-
dc.contributor.authorPowell, Jaime E.-
dc.date.accessioned2019-07-29T15:52:24Z-
dc.date.available2019-07-29T15:52:24Z-
dc.date.issued2010-09-
dc.identifier.citationCerda, Ignacio A., Powell, Jaime E. (2010). Dermal armor histology of Saltasaurus loricatus, an Upper Cretaceous sauropod dinosaur from Northwest Argentina. Polish Academy of Sciences. Institute of Paleobiology; Acta Palaeontologica Polonica; 55; 3; pp. 389-398es_ES
dc.identifier.issn0567-7920es_ES
dc.identifier.issn1732-2421es_ES
dc.identifier.urihttp://www.app.pan.pl/article/item/app20091101.html-
dc.identifier.urihttp://dx.doi.org/10.4202/app.2009.1101-
dc.identifier.urihttp://hdl.handle.net/11336/73560-
dc.identifier.urihttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/2614-
dc.format.extentp. 389-398es_ES
dc.format.mediumimpresoes_ES
dc.format.mediumdigitales_ES
dc.language.isoenes_ES
dc.titleDermal armor histology of Saltasaurus loricatus, an Upper Cretaceous sauropod dinosaur from Northwest Argentinaes_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. Universidad Nacional del Comahue; Argentinaes_ES
dc.description.filiationFil: Cerda, Ignacio A. Universidad Bariloche; Argentinaes_ES
dc.description.filiationFil: Cerda, Ignacio A. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentinaes_ES
dc.description.filiationFil: Powell, Jaime E. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentinaes_ES
dc.description.filiationFil: Powell, Jaime E. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentinaes_ES
dc.subject.keywordSauropodaes_ES
dc.subject.keywordTitanosauriaes_ES
dc.subject.keywordOsteohistologyes_ES
dc.subject.keywordOsteodermses_ES
dc.subject.keywordDermal Ossicleses_ES
dc.subject.keywordMetaplasiaes_ES
dc.subject.keywordArgentinaes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.subject.materiaMeteorología y Ciencias Atmosféricases_ES
dc.origin.lugarDesarrolloPolish Academy of Scienceses_ES
dc.origin.lugarDesarrolloInstitute of Paleobiologyes_ES
dc.relation.journalissue55es_ES
dc.description.reviewsies_ES
dc.description.resumenThe first unambiguous evidence of the presence of osteoderms in sauropod dinosaurs came from the discovery of Saltasaurus loricatus, a titanosaur from the Upper Cretaceous of Argentina. The dermal armor of Saltasaurus is composed of bony plates and small dermal ossicles. Here, we analyze the bone microstructure of these elements and provide information regarding its origin and development. The bony plates are composed almost entirely of reconstructed cancellous bone. Remains of primary bone consist of coarse bundles of mineralized collagenous fibers towards the external surface. Also, woven fibered bone tissue appears in the basal and lateral regions. Dermal ossicles lack secondary remodeling, and their matrix is formed by three orthogonal systems of collagenous fiber bundles. Growth lines are present in both bony plates and ossicles. Bone histology reveals that osteoderms mainly originated through direct mineralization (metaplasia) of the dermis, although other mechanisms are also involved (at least in the origin of dermal plates). The common features of development and integumental location of the osteoderms of Saltasaurus and other non-related vertebrates (e.g., lepidosaurs, crocodylomorphs) are linked to the intrinsic skeletogenic properties of the dermis.es_ES
dc.relation.journalTitleActa Palaeontologica Polonicaes_ES
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