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dc.contributor.author Martínez, Ricardo Néstor
dc.contributor.author Sereno, Paul C.
dc.contributor.author Alcober, Oscar
dc.contributor.author Colombi, Carina Ester
dc.contributor.author Renne, Paul R.
dc.contributor.author Montañez, Isabel P.
dc.contributor.author Currie, Brian S.
dc.date.available 2019-02-01T18:05:30Z
dc.date.issued 2011-01
dc.identifier.citation Martínez, Ricardo Néstor; Sereno, Paul C.; Alcober, Oscar; Colombi, Carina Ester; Renne, Paul R.; et al.; A basal dinosaur from the dawn of the dinosaur era in southwestern pangaea; American Association for the Advancement of Science; Science; 331; 6014; 1-2011; 206-210
dc.identifier.issn 0036-8075
dc.identifier.uri http://hdl.handle.net/11336/69202
dc.description.abstract Upper Triassic rocks in northwestern Argentina preserve the most complete record of dinosaurs before their rise to dominance in the Early Jurassic. Here, we describe a previously unidentified basal theropod, reassess its contemporary Eoraptor as a basal sauropodomorph, divide the faunal record of the Ischigualasto Formation with biozones, and bracket the formation with 40Ar/39Ar ages. Some 230 million years ago in the Late Triassic (mid Carnian), the earliest dinosaurs were the dominant terrestrial carnivores and small herbivores in southwestern Pangaea. The extinction of nondinosaurian herbivores is sequential and is not linked to an increase in dinosaurian diversity, which weakens the predominant scenario for dinosaurian ascendancy as opportunistic replacement.
dc.format application/pdf
dc.language.iso eng
dc.publisher American Association for the Advancement of Science
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject DINOSAUR
dc.subject EXTINCTION
dc.subject CARNIAN
dc.subject BIOZONES
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 basal dinosaur from the dawn of the dinosaur era in southwestern pangaea
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2019-01-31T14:05:54Z
dc.journal.volume 331
dc.journal.number 6014
dc.journal.pagination 206-210
dc.journal.pais Estados Unidos
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; Argentina
dc.description.fil Fil: Sereno, Paul C.. University of Chicago; Estados Unidos
dc.description.fil Fil: Alcober, Oscar. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto y Museo de Ciencias Naturales; Argentina
dc.description.fil Fil: Colombi, Carina Ester. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto y Museo de Ciencias Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Renne, Paul R.. Berkeley Geochronology Center; Estados Unidos. University of California at Berkeley; Estados Unidos
dc.description.fil Fil: Montañez, Isabel P.. University of California at Davis; Estados Unidos
dc.description.fil Fil: Currie, Brian S.. Miami University; Estados Unidos
dc.journal.title Science
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1126/science.1198467
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://science.sciencemag.org/content/331/6014/206
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)