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dc.contributor.authorPonce, Denis Alejandro-
dc.contributor.authorCerda, Ignacio Alejandro-
dc.contributor.authorDesojo, Julia Brenda-
dc.contributor.authorNesbitt, Sterling J.-
dc.date.accessioned2019-07-30T11:28:52Z-
dc.date.available2019-07-30T11:28:52Z-
dc.date.issued2017-10-
dc.identifier.citationPonce, Denis A., Cerda, Ignacio A., Desojo, Julia B., Nesbitt, Sterling J. (2017). The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs. Polish Academy of Sciences. Institute of Paleobiology; Acta Palaeontologica Polonica; 62; 4; pp. 819-831es_ES
dc.identifier.issn0567-7920es_ES
dc.identifier.issn1732-2421es_ES
dc.identifier.urihttp://www.app.pan.pl/article/item/app003812017.html-
dc.identifier.urihttps://doi.org/10.4202/app.00381.2017-
dc.identifier.urihttp://hdl.handle.net/11336/66881-
dc.identifier.urihttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/2620-
dc.format.extentp. 819-831es_ES
dc.format.mediumimpresoes_ES
dc.format.mediumdigitales_ES
dc.language.isoeses_ES
dc.titleThe osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurses_ES
dc.typeArticuloes_ES
dc.rights.licensehttps://creativecommons.org/licenses/by-nc-sa/4.0/es_ES
dc.description.filiationFil: Ponce, Denis A. Universidad Nacional de Río Negro; Argentinaes_ES
dc.description.filiationFil: Ponce, Denis A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_ES
dc.description.filiationFil: Cerda, Ignacio A. Universidad Nacional de Río Negro; Argentinaes_ES
dc.description.filiationFil: Desojo, Julia B. División Paleontología Vertebrados, Museo de La Plata, Universidad Nacional de La Plata; Argentinaes_ES
dc.description.filiationFil: Cerda, Ignacio A. Instituto de Investigación en Paleobiología y Geología; Argentinaes_ES
dc.description.filiationFil: Nesbitt, Sterling J. Department of Geosciences, Virginia Tech; Estados Unidoses_ES
dc.subject.keywordArchosauriaes_ES
dc.subject.keywordDoswelliidaees_ES
dc.subject.keywordProtero Champ Sidaees_ES
dc.subject.keywordPalaeoecologyes_ES
dc.subject.keywordMicroanatomyes_ES
dc.subject.keywordHistologyes_ES
dc.subject.keywordTriassices_ES
dc.subject.keywordUSAes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.subject.materiaCiencias Exactas y Naturales (General)es_ES
dc.origin.lugarDesarrolloPolish Academy of Scienceses_ES
dc.origin.lugarDesarrolloInstitute of Paleobiologyes_ES
dc.relation.journalissue62es_ES
dc.description.reviewsies_ES
dc.description.resumenOsteoderms are common in most archosauriform lineages, including basal forms, such as doswelliids and proterochampsids. In this survey, osteoderms of the doswelliids Doswellia kaltenbachi and Vancleavea campi, and proterochampsid Chanaresuchus bonapartei are examined to infer their palaeobiology, such as histogenesis, age estimation at death, development of external sculpturing, and palaeoecology. Doswelliid osteoderms have a trilaminar structure: two cortices of compact bone (external and basal) that enclose an internal core of cancellous bone. In contrast, Chanaresuchus bonapartei osteoderms are composed of entirely compact bone. The external ornamentation of Doswellia kaltenbachi is primarily formed and maintained by preferential bone growth. Conversely, a complex pattern of resorption and redeposition process is inferred in Archeopelta arborensis and Tarjadia ruthae. Vancleavea campi exhibits the highest degree of variation among doswelliids in its histogenesis (metaplasia), density and arrangement of vascularization and lack of sculpturing. The relatively high degree of compactness in the osteoderms of all the examined taxa is congruent with an aquatic or semi-aquatic lifestyle. In general, the osteoderm histology of doswelliids more closely resembles that of phytosaurs and pseudosuchians than that of proterochampsids.es_ES
dc.relation.journalTitleActa Palaeontologica Polonicaes_ES
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