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dc.contributor.author
Lecuona, Agustina
dc.contributor.author
Desojo, Julia Brenda
dc.contributor.author
Pol, Diego
dc.date.available
2018-04-05T21:11:15Z
dc.date.issued
2017-05
dc.identifier.citation
Lecuona, Agustina; Desojo, Julia Brenda; Pol, Diego; New information on the postcranial skeleton of Gracilisuchus stipanicicorum (Archosauria: Suchia) and reappraisal of its phylogenetic position; Wiley Blackwell Publishing, Inc; Zoological Journal of the Linnean Society; 181; 3; 5-2017; 1-40
dc.identifier.issn
0024-4082
dc.identifier.uri
http://hdl.handle.net/11336/41022
dc.description.abstract
Gracilisuchus stipanicicorum Romer, 1972a, the only species in its genus, is a small basal suchian, recovered from the Middle?Late Triassic Chañares Formation (La Rioja, Argentina). This species has been interpreted as related to vari- ous taxa within Archosauria, including Ornithosuchidae, Rauisuchidae and Crocodylomorpha. Recent phylogenetic analyses are concordant in recovering it in a basal position within Suchia, and the most recent analysis recovered it within the clade Gracilisuchidae. Six specimens of G. stipanicicorum are known and all of them were studied and included in a phylogenetic analysis of Archosauriformes. Re-examination of the specimens allowed us to improve the diagnosis, identify new diagnostic characters (e.g. first sacral rib with a slight distal expansion relative to the proximal portion) and, in particular, redescribe the postcranial skeleton. The phylogenetic data matrix is an updated version of a previous study with the inclusion of additional characters and taxa. The strict consensus supports the most recent phylogenetic results, recovering Gracilisuchus as a basal suchian within Gracilisuchidae. The results of this analysis resolve some important polytomies and yield higher support values than recent analyses. All previous alternative hypotheses on the affinities of Gracilisuchus were found to be highly suboptimal for the new data matrix.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Archosauria
dc.subject
Triassic
dc.subject
Gracilisuchus
dc.subject
Phylogeny
dc.subject.classification
Meteorología y Ciencias Atmosféricas
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
New information on the postcranial skeleton of Gracilisuchus stipanicicorum (Archosauria: Suchia) and reappraisal of its phylogenetic position
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-05T13:42:45Z
dc.journal.volume
181
dc.journal.number
3
dc.journal.pagination
1-40
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Lecuona, Agustina. Museo Paleontológico Egidio Feruglio; Argentina
dc.description.fil
Fil: Desojo, Julia Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales ; Argentina
dc.description.fil
Fil: Pol, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
dc.journal.title
Zoological Journal of the Linnean Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/zoolinnean/zlx011
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/zoolinnean/article-abstract/181/3/638/3854755
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