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dc.contributor.author
Martínez, Ricardo Néstor  
dc.contributor.author
Apaldetti, Graciela Cecilia  
dc.date.available
2018-11-28T19:48:23Z  
dc.date.issued
2017-11  
dc.identifier.citation
Martínez, Ricardo Néstor; Apaldetti, Graciela Cecilia; A late norian-rhaetian coelophysid neotheropod (dinosauria, saurischia) from the quebrada del barro formation, Northwestern Argentina; Asociacion Paleontologica Argentina; Ameghiniana; 54; 5; 11-2017; 488-505  
dc.identifier.issn
0002-7014  
dc.identifier.uri
http://hdl.handle.net/11336/65519  
dc.description.abstract
Coelophysoids are the most abundant theropod dinosaurs known from the Late Triassic through Early Jurassic and represent the earliest major radiation of Neotheropoda. Within Coelophysoidea sensu lato, the most stable clade is Coelophysidae, which are small theropods characterized by long necks, and light and kinetic skulls. Coelophysids are the most abundant basal non-Tetanurae neotheropods known worldwide; however, until recently, they were unknown from South America. We report here a new coelophysid neotheropod, Lucianovenator bonoi gen. et sp. nov., from the late Norian-Rhaetian Quebrada del Barro Formation, northwestern Argentina. A phylogenetic analysis recovered Lucianovenator bonoi nested into the monophyletic group Coelophysidae in an unresolved clade, together with Coelophysis rhodesiensis and Camposaurus arizonensis. The presence of Lucianovenator in the late Norian-Rhaetian of Argentina increases the poor and scarce record of Triassic South American neotheropods, suggesting that the virtual absence of theropods in the fossil record during the Rhaetian is probably a taphonomic/stratigraphic bias instead of a decline in diversity and abundance after the Norian. Finally, the new finding corroborates the American endemism of coelophysid neotheropods in the Late Triassic and their worldwide distribution during the Early Jurassic, supporting the extreme faunal homogeneity hypothesized for Early Jurassic continental biotas.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Asociacion Paleontologica Argentina  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Coelophysidae  
dc.subject
Dinosauria  
dc.subject
Marayes  
dc.subject
Norian  
dc.subject
Saurischia  
dc.subject
Theropoda  
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 late norian-rhaetian coelophysid neotheropod (dinosauria, saurischia) from the quebrada del barro formation, Northwestern Argentina  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-10-22T17:26:59Z  
dc.identifier.eissn
1851-8044  
dc.journal.volume
54  
dc.journal.number
5  
dc.journal.pagination
488-505  
dc.journal.pais
Argentina  
dc.description.fil
Fil: Martínez, Ricardo Néstor. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Instituto y Museo de Ciencias Naturales. Área de Paleontología de Vertebrados; Argentina  
dc.description.fil
Fil: Apaldetti, Graciela Cecilia. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Instituto y Museo de Ciencias Naturales. Área de Paleontología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Centro de Investigaciones de la Geosfera y Biosfera. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones de la Geosfera y Biosfera; Argentina  
dc.journal.title
Ameghiniana  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/10.5710/AMGH.09.04.2017.3065  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.5710/AMGH.09.04.2017.3065  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/3065