The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1038/s41598-020-67854-1 http://hdl.handle.net/11449/195569 |
Resumo: | Present knowledge of Late Triassic tetrapod evolution, including the rise of dinosaurs, relies heavily on the fossil-rich continental deposits of South America, their precise depositional histories and correlations. We report on an extended succession of the Ischigualasto Formation exposed in the Hoyada del Cerro Las Lajas (La Rioja, Argentina), where more than 100 tetrapod fossils were newly collected, augmented by historical finds such as the ornithosuchid Venaticosuchus rusconii and the putative ornithischian Pisanosaurus mertii. Detailed lithostratigraphy combined with high-precision U-Pb geochronology from three intercalated tuffs are used to construct a robust Bayesian age model for the formation, constraining its deposition between 230.2 +/- 1.9 Ma and 221.4 +/- 1.2 Ma, and its fossil-bearing interval to 229.20+0.11/-0.15-226.85+1.45/-2.01 Ma. The latter is divided into a lower Hyperodapedon and an upper Teyumbaita biozones, based on the ranges of the eponymous rhynchosaurs, allowing biostratigraphic correlations to elsewhere in the Ischigualasto-Villa Union Basin, as well as to the Parana Basin in Brazil. The temporally calibrated Ischigualasto biostratigraphy suggests the persistence of rhynchosaur-dominated faunas into the earliest Norian. Our ca. 229 Ma age assignment to Pi. mertii partially fills the ghost lineage between younger ornithischian records and the oldest known saurischians at ca. 233 Ma. |
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The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlationsPresent knowledge of Late Triassic tetrapod evolution, including the rise of dinosaurs, relies heavily on the fossil-rich continental deposits of South America, their precise depositional histories and correlations. We report on an extended succession of the Ischigualasto Formation exposed in the Hoyada del Cerro Las Lajas (La Rioja, Argentina), where more than 100 tetrapod fossils were newly collected, augmented by historical finds such as the ornithosuchid Venaticosuchus rusconii and the putative ornithischian Pisanosaurus mertii. Detailed lithostratigraphy combined with high-precision U-Pb geochronology from three intercalated tuffs are used to construct a robust Bayesian age model for the formation, constraining its deposition between 230.2 +/- 1.9 Ma and 221.4 +/- 1.2 Ma, and its fossil-bearing interval to 229.20+0.11/-0.15-226.85+1.45/-2.01 Ma. The latter is divided into a lower Hyperodapedon and an upper Teyumbaita biozones, based on the ranges of the eponymous rhynchosaurs, allowing biostratigraphic correlations to elsewhere in the Ischigualasto-Villa Union Basin, as well as to the Parana Basin in Brazil. The temporally calibrated Ischigualasto biostratigraphy suggests the persistence of rhynchosaur-dominated faunas into the earliest Norian. Our ca. 229 Ma age assignment to Pi. mertii partially fills the ghost lineage between younger ornithischian records and the oldest known saurischians at ca. 233 Ma.Agencia Nacional de Investigaciones Cientificas y TecnicasFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidad Nacional de San Juan (PROJOVI)Universidad Nacional de San Juan (CICITCA UNSJ-SECITI)Consejo Nacl Invest Cient & Tecn CONICET, Godoy Cruz 2290,C1425FQB, Buenos Aires, DF, ArgentinaUniv Nacl La Plata, Div Paleontol Vertebrados, Fac Ciencias Nat & Museo, Paseo Bosque S-N,B1900FWA, La Plata, ArgentinaGobierno La Rioja, Paleontol Vertebrados, Ctr Reg Invest Cient & Transferencia Tecnol La Ri, UNLaR,SEGEMAR,UNCa,CONICET, Entre Rios & Mendoza S-N, RA-5301 Anillaco, Provincia De La, ArgentinaMuseo Argentino Ciencias Nat Bernardino Rivadavia, Secc Paleontol Vertebrados, Av Angel Gallardo 470,C1405DJR, Buenos Aires, DF, ArgentinaMIT, Earth Atmospher & Planetary Sci, 77 Massachusetts Ave, Cambridge, MA 02139 USAUniv Fed Santa Maria, Ctr Ciencias Nat & Exatas, Dept Geociencias, Lab Estratig & Paleobiol, BR-97105900 Santa Maria, RS, BrazilUniv Nacl San Juan, Inst Geol CIGEOBIO, Dept Biol, Dept Geol, Av Ignacio de la Rosa 590 Oeste,J5402DCS, San Juan, ArgentinaUniv Estadual Paulista, Lab Paleontol & Evolucao Ilha Solteira, Campus Ilha Solteira, BR-15385000 Ilha Solteira, SP, BrazilUniv Nacl Cordoba, Ctr Invest Ciencias Tierra CICTERRA, Av Velez Sarsfield 1611,Ciudad Univ,X5016GCA, Cordoba, ArgentinaUniv Sao Paulo, Dept Biol, FFCLRP, Av Bandeirantes 3900, Ribeirao Preto, SP, BrazilUniv Estadual Paulista, Lab Paleontol & Evolucao Ilha Solteira, Campus Ilha Solteira, BR-15385000 Ilha Solteira, SP, BrazilAgencia Nacional de Investigaciones Cientificas y Tecnicas: PICT 2014-0609FAPESP: FAPESP 2014/03825-3Nature Publishing GroupConsejo Nacl Invest Cient & Tecn CONICETUniv Nacl La PlataGobierno La RiojaMuseo Argentino Ciencias Nat Bernardino RivadaviaMITUniversidade Federal de Sergipe (UFS)Univ Nacl San JuanUniversidade Estadual Paulista (Unesp)Univ Nacl CordobaUniversidade de São Paulo (USP)Desojo, Julia B.Fiorelli, Lucas E.Ezcurra, Martin D.Martinelli, Agustin G.Ramezani, JahandarDa Rosa, Atila A. S.Belen von Baczko, M.Jimena Trotteyn, M.Montefeltro, Felipe C. [UNESP]Ezpeleta, MiguelLanger, Max C.2020-12-10T17:39:03Z2020-12-10T17:39:03Z2020-07-29info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article34http://dx.doi.org/10.1038/s41598-020-67854-1Scientific Reports. London: Nature Publishing Group, v. 10, n. 1, 34 p., 2020.2045-2322http://hdl.handle.net/11449/19556910.1038/s41598-020-67854-1WOS:00055638830003693133328271517140000-0001-6519-8546Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScientific Reportsinfo:eu-repo/semantics/openAccess2021-10-23T09:49:03Zoai:repositorio.unesp.br:11449/195569Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:18:12.315638Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations |
title |
The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations |
spellingShingle |
The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations Desojo, Julia B. |
title_short |
The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations |
title_full |
The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations |
title_fullStr |
The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations |
title_full_unstemmed |
The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations |
title_sort |
The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations |
author |
Desojo, Julia B. |
author_facet |
Desojo, Julia B. Fiorelli, Lucas E. Ezcurra, Martin D. Martinelli, Agustin G. Ramezani, Jahandar Da Rosa, Atila A. S. Belen von Baczko, M. Jimena Trotteyn, M. Montefeltro, Felipe C. [UNESP] Ezpeleta, Miguel Langer, Max C. |
author_role |
author |
author2 |
Fiorelli, Lucas E. Ezcurra, Martin D. Martinelli, Agustin G. Ramezani, Jahandar Da Rosa, Atila A. S. Belen von Baczko, M. Jimena Trotteyn, M. Montefeltro, Felipe C. [UNESP] Ezpeleta, Miguel Langer, Max C. |
author2_role |
author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Consejo Nacl Invest Cient & Tecn CONICET Univ Nacl La Plata Gobierno La Rioja Museo Argentino Ciencias Nat Bernardino Rivadavia MIT Universidade Federal de Sergipe (UFS) Univ Nacl San Juan Universidade Estadual Paulista (Unesp) Univ Nacl Cordoba Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Desojo, Julia B. Fiorelli, Lucas E. Ezcurra, Martin D. Martinelli, Agustin G. Ramezani, Jahandar Da Rosa, Atila A. S. Belen von Baczko, M. Jimena Trotteyn, M. Montefeltro, Felipe C. [UNESP] Ezpeleta, Miguel Langer, Max C. |
description |
Present knowledge of Late Triassic tetrapod evolution, including the rise of dinosaurs, relies heavily on the fossil-rich continental deposits of South America, their precise depositional histories and correlations. We report on an extended succession of the Ischigualasto Formation exposed in the Hoyada del Cerro Las Lajas (La Rioja, Argentina), where more than 100 tetrapod fossils were newly collected, augmented by historical finds such as the ornithosuchid Venaticosuchus rusconii and the putative ornithischian Pisanosaurus mertii. Detailed lithostratigraphy combined with high-precision U-Pb geochronology from three intercalated tuffs are used to construct a robust Bayesian age model for the formation, constraining its deposition between 230.2 +/- 1.9 Ma and 221.4 +/- 1.2 Ma, and its fossil-bearing interval to 229.20+0.11/-0.15-226.85+1.45/-2.01 Ma. The latter is divided into a lower Hyperodapedon and an upper Teyumbaita biozones, based on the ranges of the eponymous rhynchosaurs, allowing biostratigraphic correlations to elsewhere in the Ischigualasto-Villa Union Basin, as well as to the Parana Basin in Brazil. The temporally calibrated Ischigualasto biostratigraphy suggests the persistence of rhynchosaur-dominated faunas into the earliest Norian. Our ca. 229 Ma age assignment to Pi. mertii partially fills the ghost lineage between younger ornithischian records and the oldest known saurischians at ca. 233 Ma. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-10T17:39:03Z 2020-12-10T17:39:03Z 2020-07-29 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1038/s41598-020-67854-1 Scientific Reports. London: Nature Publishing Group, v. 10, n. 1, 34 p., 2020. 2045-2322 http://hdl.handle.net/11449/195569 10.1038/s41598-020-67854-1 WOS:000556388300036 9313332827151714 0000-0001-6519-8546 |
url |
http://dx.doi.org/10.1038/s41598-020-67854-1 http://hdl.handle.net/11449/195569 |
identifier_str_mv |
Scientific Reports. London: Nature Publishing Group, v. 10, n. 1, 34 p., 2020. 2045-2322 10.1038/s41598-020-67854-1 WOS:000556388300036 9313332827151714 0000-0001-6519-8546 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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Scientific Reports |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
34 |
dc.publisher.none.fl_str_mv |
Nature Publishing Group |
publisher.none.fl_str_mv |
Nature Publishing Group |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808128631336075264 |