Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, Argentina

The late Aptian flora of Baqueró is one of the best known and accurately dated Cretaceous plant associations from Gondwana, recognized for their well-preserved fossil remains. The Cerro Bayo (Bajo Grande area, Argentinean Patagonia) is one of its classical locations and includes the northernmost fos...

Descripción completa

Detalles Bibliográficos
Autores: Llorens, Magdalena, Perez Loinaze, Valeria Susana, Passalia, Mauro Gabriel, Vera, Ezequiel Ignacio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/106118
Acceso en línea:http://hdl.handle.net/11336/106118
Access Level:acceso abierto
Palabra clave:PALYNOLOGY
MESOFOSSILS
PALEOFLORA
APTIAN
PATAGONIA
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
id AR_d410f95d8b42e5d8a26a1fde64d908ca
oai_identifier_str oai:ri.conicet.gov.ar:11336/106118
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, Argentina
title Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, Argentina
spellingShingle Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, Argentina
Llorens, Magdalena
PALYNOLOGY
MESOFOSSILS
PALEOFLORA
APTIAN
PATAGONIA
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
title_short Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, Argentina
title_full Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, Argentina
title_fullStr Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, Argentina
title_full_unstemmed Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, Argentina
title_sort Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, Argentina
dc.creator.none.fl_str_mv Llorens, Magdalena
Perez Loinaze, Valeria Susana
Passalia, Mauro Gabriel
Vera, Ezequiel Ignacio
author Llorens, Magdalena
author_facet Llorens, Magdalena
Perez Loinaze, Valeria Susana
Passalia, Mauro Gabriel
Vera, Ezequiel Ignacio
author_role author
author2 Perez Loinaze, Valeria Susana
Passalia, Mauro Gabriel
Vera, Ezequiel Ignacio
author2_role author
author
author
dc.subject.none.fl_str_mv PALYNOLOGY
MESOFOSSILS
PALEOFLORA
APTIAN
PATAGONIA
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
topic PALYNOLOGY
MESOFOSSILS
PALEOFLORA
APTIAN
PATAGONIA
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
description The late Aptian flora of Baqueró is one of the best known and accurately dated Cretaceous plant associations from Gondwana, recognized for their well-preserved fossil remains. The Cerro Bayo (Bajo Grande area, Argentinean Patagonia) is one of its classical locations and includes the northernmost fossiliferous outcrops of the Baqueró Group, which belong to the Anfiteatro de Ticó Formation. It yields diverse and numerous plant megafossils and reproductive structures with associated pollen. We report a complete systematic study of a palynological association with 124 species, including 26 that are identified for the first time in the unit. This allowed the first record of three major botanical groups not reported before (i.e., lycophytes, hornworts and angiosperms), as well as algae and fungal spores. The same fossiliferous levels also yielded megafloral remains and the first record of a mesofossils assemblage for the Baqueró flora. By integrating all these floristic data sources, relative abundance analyses, and sedimentological data it is possible to propose a paleoenvironmental reconstruction of the Bajo Grande area during the late Aptian: a diverse forest growing in a temperate to warm climate with subtle variations between those associations from floodplains with water instability within a delta and those that grew into a more stable area out of the flooding influence. Thus, the presumed xeromorphic features identified in the Cerro Bayo flora (sunken stomata, papillae, epicuticular waxes) may have been related to contemporaneous volcanic activity recorded in Patagonia rather than to dry conditions.
publishDate 2020
dc.date.none.fl_str_mv 2020-02
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/11336/106118
Llorens, Magdalena; Perez Loinaze, Valeria Susana; Passalia, Mauro Gabriel; Vera, Ezequiel Ignacio; Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, Argentina; Elsevier Science; Review of Palaeobotany and Palynology; 273; 2-2020; 104-137
0034-6667
1879-0615
CONICET Digital
CONICET
url http://hdl.handle.net/11336/106118
identifier_str_mv Llorens, Magdalena; Perez Loinaze, Valeria Susana; Passalia, Mauro Gabriel; Vera, Ezequiel Ignacio; Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, Argentina; Elsevier Science; Review of Palaeobotany and Palynology; 273; 2-2020; 104-137
0034-6667
1879-0615
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.2019.104137
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0034666718302434
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
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
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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
_version_ 1799196447317426176
spelling Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, ArgentinaLlorens, MagdalenaPerez Loinaze, Valeria SusanaPassalia, Mauro GabrielVera, Ezequiel IgnacioPALYNOLOGYMESOFOSSILSPALEOFLORAAPTIANPATAGONIAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The late Aptian flora of Baqueró is one of the best known and accurately dated Cretaceous plant associations from Gondwana, recognized for their well-preserved fossil remains. The Cerro Bayo (Bajo Grande area, Argentinean Patagonia) is one of its classical locations and includes the northernmost fossiliferous outcrops of the Baqueró Group, which belong to the Anfiteatro de Ticó Formation. It yields diverse and numerous plant megafossils and reproductive structures with associated pollen. We report a complete systematic study of a palynological association with 124 species, including 26 that are identified for the first time in the unit. This allowed the first record of three major botanical groups not reported before (i.e., lycophytes, hornworts and angiosperms), as well as algae and fungal spores. The same fossiliferous levels also yielded megafloral remains and the first record of a mesofossils assemblage for the Baqueró flora. By integrating all these floristic data sources, relative abundance analyses, and sedimentological data it is possible to propose a paleoenvironmental reconstruction of the Bajo Grande area during the late Aptian: a diverse forest growing in a temperate to warm climate with subtle variations between those associations from floodplains with water instability within a delta and those that grew into a more stable area out of the flooding influence. Thus, the presumed xeromorphic features identified in the Cerro Bayo flora (sunken stomata, papillae, epicuticular waxes) may have been related to contemporaneous volcanic activity recorded in Patagonia rather than to dry conditions.Fil: Llorens, Magdalena. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Departamento de Biología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Perez Loinaze, Valeria Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Passalia, Mauro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Sur. Departamento de Geología; ArgentinaFil: Vera, Ezequiel Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaElsevier Science2020-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/106118Llorens, Magdalena; Perez Loinaze, Valeria Susana; Passalia, Mauro Gabriel; Vera, Ezequiel Ignacio; Palynological, megafloral and mesofossil record from the Bajo Grande area (Anfiteatro de Ticó Formation, Baqueró Group, Upper Aptian), Patagonia, Argentina; Elsevier Science; Review of Palaeobotany and Palynology; 273; 2-2020; 104-1370034-66671879-0615CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.revpalbo.2019.104137info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0034666718302434info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:28:12Zoai:ri.conicet.gov.ar:11336/106118instacron: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:34982024-05-08 14:28:13.053CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
score 15,811543

Similares en LA Referencia