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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
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Renne, Paul R.
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Montañez, Isabel P.
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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
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Extinction
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Carnian
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Biozones
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Paleontología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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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
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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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