Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insights

Autores
Camina, Sonia Clara; Rubinstein, Claudia Viviana; Butcher, A.; García, Victoria Josefina; Vergani, G.; Pereira, M.
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Chitinozoans from the Middle Devonian Los Monos Formation in the Tarija Basin (southern Bolivia and northwestern Argentina) have been analysed from the Tacobo TCB X-1001 (TCB-1001) and Ramos R-1011 (R-1011) boreholes. While the chitinozoan assemblages from the TCB-1001 borehole have been previously published, this contribution presents a comprehensive new analysis of the R-1011 material and integrates it into a refined biostratigraphic and palaeogeographical framework. Thirty-eight cutting samples were processed, yielding specimens in eighteen samples that allowed for taxonomic classification. A total of 11 genera and 40 species of chitinozoans were identified from both boreholes. Twenty species were identified in the R-1011 borehole, including the newly described species Lagenochitina postpirum n. sp. and Ramochitina durandi n. sp. Based on an integrated biostratigraphic analysis, three local chitinozoan biozones are proposed: the late Eifelian-early Givetian Ramochitina candelariaensis–stiphrospinata Biozone, the early Givetian Ancyrochitina flexuosa–Ramochitina ramosi Biozone, and the middle Givetian Ancyrochitina cornigera–Ramochitina autasmirimense Biozone. A palaeogeographical analysis using similarity indices indicates that there were no geographic barriers within the Tarija Basin and suggests interconnections among all Western Gondwana basins. However, the results for other palaeocontinents suggest that the Western Gondwana chitinozoan fauna did not mix with other faunas worldwide.
Fil: Camina, Sonia Clara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Rubinstein, Claudia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Butcher, A.. University of Portsmouth; Reino Unido
Fil: García, Victoria Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Vergani, G.. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Pereira, M.. No especifíca;
Materia
CHITINOZOANS
BIOSTRATIGRAPHY
PALAEOGEOGRAPHY
MIDDLE DEVONIAN
WESTERN GONDWANA
BIOZONATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/281902
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insightsCamina, Sonia ClaraRubinstein, Claudia VivianaButcher, A.García, Victoria JosefinaVergani, G.Pereira, M.CHITINOZOANSBIOSTRATIGRAPHYPALAEOGEOGRAPHYMIDDLE DEVONIANWESTERN GONDWANABIOZONATIONhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Chitinozoans from the Middle Devonian Los Monos Formation in the Tarija Basin (southern Bolivia and northwestern Argentina) have been analysed from the Tacobo TCB X-1001 (TCB-1001) and Ramos R-1011 (R-1011) boreholes. While the chitinozoan assemblages from the TCB-1001 borehole have been previously published, this contribution presents a comprehensive new analysis of the R-1011 material and integrates it into a refined biostratigraphic and palaeogeographical framework. Thirty-eight cutting samples were processed, yielding specimens in eighteen samples that allowed for taxonomic classification. A total of 11 genera and 40 species of chitinozoans were identified from both boreholes. Twenty species were identified in the R-1011 borehole, including the newly described species Lagenochitina postpirum n. sp. and Ramochitina durandi n. sp. Based on an integrated biostratigraphic analysis, three local chitinozoan biozones are proposed: the late Eifelian-early Givetian Ramochitina candelariaensis–stiphrospinata Biozone, the early Givetian Ancyrochitina flexuosa–Ramochitina ramosi Biozone, and the middle Givetian Ancyrochitina cornigera–Ramochitina autasmirimense Biozone. A palaeogeographical analysis using similarity indices indicates that there were no geographic barriers within the Tarija Basin and suggests interconnections among all Western Gondwana basins. However, the results for other palaeocontinents suggest that the Western Gondwana chitinozoan fauna did not mix with other faunas worldwide.Fil: Camina, Sonia Clara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Rubinstein, Claudia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Butcher, A.. University of Portsmouth; Reino UnidoFil: García, Victoria Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Vergani, G.. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Pereira, M.. No especifíca;Elsevier Science2025-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/281902Camina, Sonia Clara; Rubinstein, Claudia Viviana; Butcher, A.; García, Victoria Josefina; Vergani, G.; et al.; Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insights; Elsevier Science; Review of Palaeobotany and Palynology; 343; 12-2025; 1-420034-6667CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.revpalbo.2025.105413info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0034666725001344info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-03-31T15:26:05Zoai:ri.conicet.gov.ar:11336/281902instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-03-31 15:26:06.084CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insights
title Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insights
spellingShingle Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insights
Camina, Sonia Clara
CHITINOZOANS
BIOSTRATIGRAPHY
PALAEOGEOGRAPHY
MIDDLE DEVONIAN
WESTERN GONDWANA
BIOZONATION
title_short Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insights
title_full Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insights
title_fullStr Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insights
title_full_unstemmed Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insights
title_sort Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insights
dc.creator.none.fl_str_mv Camina, Sonia Clara
Rubinstein, Claudia Viviana
Butcher, A.
García, Victoria Josefina
Vergani, G.
Pereira, M.
author Camina, Sonia Clara
author_facet Camina, Sonia Clara
Rubinstein, Claudia Viviana
Butcher, A.
García, Victoria Josefina
Vergani, G.
Pereira, M.
author_role author
author2 Rubinstein, Claudia Viviana
Butcher, A.
García, Victoria Josefina
Vergani, G.
Pereira, M.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv CHITINOZOANS
BIOSTRATIGRAPHY
PALAEOGEOGRAPHY
MIDDLE DEVONIAN
WESTERN GONDWANA
BIOZONATION
topic CHITINOZOANS
BIOSTRATIGRAPHY
PALAEOGEOGRAPHY
MIDDLE DEVONIAN
WESTERN GONDWANA
BIOZONATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Chitinozoans from the Middle Devonian Los Monos Formation in the Tarija Basin (southern Bolivia and northwestern Argentina) have been analysed from the Tacobo TCB X-1001 (TCB-1001) and Ramos R-1011 (R-1011) boreholes. While the chitinozoan assemblages from the TCB-1001 borehole have been previously published, this contribution presents a comprehensive new analysis of the R-1011 material and integrates it into a refined biostratigraphic and palaeogeographical framework. Thirty-eight cutting samples were processed, yielding specimens in eighteen samples that allowed for taxonomic classification. A total of 11 genera and 40 species of chitinozoans were identified from both boreholes. Twenty species were identified in the R-1011 borehole, including the newly described species Lagenochitina postpirum n. sp. and Ramochitina durandi n. sp. Based on an integrated biostratigraphic analysis, three local chitinozoan biozones are proposed: the late Eifelian-early Givetian Ramochitina candelariaensis–stiphrospinata Biozone, the early Givetian Ancyrochitina flexuosa–Ramochitina ramosi Biozone, and the middle Givetian Ancyrochitina cornigera–Ramochitina autasmirimense Biozone. A palaeogeographical analysis using similarity indices indicates that there were no geographic barriers within the Tarija Basin and suggests interconnections among all Western Gondwana basins. However, the results for other palaeocontinents suggest that the Western Gondwana chitinozoan fauna did not mix with other faunas worldwide.
Fil: Camina, Sonia Clara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Rubinstein, Claudia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Butcher, A.. University of Portsmouth; Reino Unido
Fil: García, Victoria Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Vergani, G.. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Pereira, M.. No especifíca;
description Chitinozoans from the Middle Devonian Los Monos Formation in the Tarija Basin (southern Bolivia and northwestern Argentina) have been analysed from the Tacobo TCB X-1001 (TCB-1001) and Ramos R-1011 (R-1011) boreholes. While the chitinozoan assemblages from the TCB-1001 borehole have been previously published, this contribution presents a comprehensive new analysis of the R-1011 material and integrates it into a refined biostratigraphic and palaeogeographical framework. Thirty-eight cutting samples were processed, yielding specimens in eighteen samples that allowed for taxonomic classification. A total of 11 genera and 40 species of chitinozoans were identified from both boreholes. Twenty species were identified in the R-1011 borehole, including the newly described species Lagenochitina postpirum n. sp. and Ramochitina durandi n. sp. Based on an integrated biostratigraphic analysis, three local chitinozoan biozones are proposed: the late Eifelian-early Givetian Ramochitina candelariaensis–stiphrospinata Biozone, the early Givetian Ancyrochitina flexuosa–Ramochitina ramosi Biozone, and the middle Givetian Ancyrochitina cornigera–Ramochitina autasmirimense Biozone. A palaeogeographical analysis using similarity indices indicates that there were no geographic barriers within the Tarija Basin and suggests interconnections among all Western Gondwana basins. However, the results for other palaeocontinents suggest that the Western Gondwana chitinozoan fauna did not mix with other faunas worldwide.
publishDate 2025
dc.date.none.fl_str_mv 2025-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/281902
Camina, Sonia Clara; Rubinstein, Claudia Viviana; Butcher, A.; García, Victoria Josefina; Vergani, G.; et al.; Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insights; Elsevier Science; Review of Palaeobotany and Palynology; 343; 12-2025; 1-42
0034-6667
CONICET Digital
CONICET
url http://hdl.handle.net/11336/281902
identifier_str_mv Camina, Sonia Clara; Rubinstein, Claudia Viviana; Butcher, A.; García, Victoria Josefina; Vergani, G.; et al.; Middle Devonian chitinozoan assemblages of northwestern Argentina and southern Bolivia: New biostratigraphic and palaeogeographical insights; Elsevier Science; Review of Palaeobotany and Palynology; 343; 12-2025; 1-42
0034-6667
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.revpalbo.2025.105413
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0034666725001344
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
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dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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