New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central Argentina

Autores
Bodnar, Josefina; Morel, E. M.; Coturel, Eliana Paula; Spalletti, Luis Antonio; Ganuza, Daniel Gustavo
Año de publicación
2020
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The Triassic sedimentary rocks outcropping in the Cacheuta Hill (Precordillera, Mendoza province, Argentina) correspond to the upper part of the Uspallata Group (Late Triassic) comprising the younger levels of Potrerillos Formation, and the Cacheuta and Río Blanco formations. In this contribution, new fossil plant records in the Uspallata Group are described, the systematic palaeontology of previously described taxa is revised, and the plant-palaeocomunities are reconstructed. In addition, the studied unit is correlated with other Triassic formations of Gondwana. Our revision of the plant-fossil record from the Uspallata Group provides: the first record of the genus Androstrobus (Cycadales) and the genus Odyssianthus (Voltziales) in the Argentinean Triassic, the description of Rissikianthus as a new element of the Cacheuta palaeoflora, the transfer of Baiera rollerii to Rochipteris rollerii, and the presence of Hamshawvia and Stachyopitys in the Argentinean Triassic, which confirm the record of these reproductive structures as related to the ginkgoalean lineage. The most diverse plant fossil group in the Triassic of Cacheuta Hill is the seed fern order Umkomasiales (= Corystospermales). Four types of plant palaeocommunities were inferred for Uspallata Group: conifer-dominated deciduous forests, corystosperm-dominated deciduous forests, corystosperm-dominated evergreen forests, and corystosperm-dominated shrubby-arboreal. These palaecommunities were developed in mixed load meandering fluvial, palustrine and meromictic lacustrine systems under seasonal or oceanic subtropical climates, varying from semiarid to humid environments. The plant fossil assemblages present in the Uspallata Group at Cacheuta Hill shows similarities with the Molteno Formation from South Africa, indicating a Late Triassic (Carnian–Norian) age for the unit.
Fil: Bodnar, Josefina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Morel, E. M.. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina
Fil: Coturel, Eliana Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina
Fil: Spalletti, Luis Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Ganuza, Daniel Gustavo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina
2nd Palaeontological Virtual Congress
Valencia
España
Paleontological Society
Materia
Triásico
Gondwana
Fossil plants
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/201014
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/201014
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central ArgentinaBodnar, JosefinaMorel, E. M.Coturel, Eliana PaulaSpalletti, Luis AntonioGanuza, Daniel GustavoTriásicoGondwanaFossil plantshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Triassic sedimentary rocks outcropping in the Cacheuta Hill (Precordillera, Mendoza province, Argentina) correspond to the upper part of the Uspallata Group (Late Triassic) comprising the younger levels of Potrerillos Formation, and the Cacheuta and Río Blanco formations. In this contribution, new fossil plant records in the Uspallata Group are described, the systematic palaeontology of previously described taxa is revised, and the plant-palaeocomunities are reconstructed. In addition, the studied unit is correlated with other Triassic formations of Gondwana. Our revision of the plant-fossil record from the Uspallata Group provides: the first record of the genus Androstrobus (Cycadales) and the genus Odyssianthus (Voltziales) in the Argentinean Triassic, the description of Rissikianthus as a new element of the Cacheuta palaeoflora, the transfer of Baiera rollerii to Rochipteris rollerii, and the presence of Hamshawvia and Stachyopitys in the Argentinean Triassic, which confirm the record of these reproductive structures as related to the ginkgoalean lineage. The most diverse plant fossil group in the Triassic of Cacheuta Hill is the seed fern order Umkomasiales (= Corystospermales). Four types of plant palaeocommunities were inferred for Uspallata Group: conifer-dominated deciduous forests, corystosperm-dominated deciduous forests, corystosperm-dominated evergreen forests, and corystosperm-dominated shrubby-arboreal. These palaecommunities were developed in mixed load meandering fluvial, palustrine and meromictic lacustrine systems under seasonal or oceanic subtropical climates, varying from semiarid to humid environments. The plant fossil assemblages present in the Uspallata Group at Cacheuta Hill shows similarities with the Molteno Formation from South Africa, indicating a Late Triassic (Carnian–Norian) age for the unit.Fil: Bodnar, Josefina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Morel, E. M.. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; ArgentinaFil: Coturel, Eliana Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; ArgentinaFil: Spalletti, Luis Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Ganuza, Daniel Gustavo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina2nd Palaeontological Virtual CongressValenciaEspañaPaleontological SocietyPalaeontological Virtual Congress2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/mswordapplication/pdfhttp://hdl.handle.net/11336/201014New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central Argentina; 2nd Palaeontological Virtual Congress; Valencia; España; 2020; 119-119978-84-09-20283-6CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.uv.es/palaeovc/Documentos%20/2nd%20PVC/2nd_PVC_Book_of_Abstracts.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:35Zoai:ri.conicet.gov.ar:11336/201014instacron: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:34982025-09-03 09:45:36.119CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central Argentina
title New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central Argentina
spellingShingle New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central Argentina
Bodnar, Josefina
Triásico
Gondwana
Fossil plants
title_short New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central Argentina
title_full New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central Argentina
title_fullStr New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central Argentina
title_full_unstemmed New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central Argentina
title_sort New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central Argentina
dc.creator.none.fl_str_mv Bodnar, Josefina
Morel, E. M.
Coturel, Eliana Paula
Spalletti, Luis Antonio
Ganuza, Daniel Gustavo
author Bodnar, Josefina
author_facet Bodnar, Josefina
Morel, E. M.
Coturel, Eliana Paula
Spalletti, Luis Antonio
Ganuza, Daniel Gustavo
author_role author
author2 Morel, E. M.
Coturel, Eliana Paula
Spalletti, Luis Antonio
Ganuza, Daniel Gustavo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Triásico
Gondwana
Fossil plants
topic Triásico
Gondwana
Fossil plants
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Triassic sedimentary rocks outcropping in the Cacheuta Hill (Precordillera, Mendoza province, Argentina) correspond to the upper part of the Uspallata Group (Late Triassic) comprising the younger levels of Potrerillos Formation, and the Cacheuta and Río Blanco formations. In this contribution, new fossil plant records in the Uspallata Group are described, the systematic palaeontology of previously described taxa is revised, and the plant-palaeocomunities are reconstructed. In addition, the studied unit is correlated with other Triassic formations of Gondwana. Our revision of the plant-fossil record from the Uspallata Group provides: the first record of the genus Androstrobus (Cycadales) and the genus Odyssianthus (Voltziales) in the Argentinean Triassic, the description of Rissikianthus as a new element of the Cacheuta palaeoflora, the transfer of Baiera rollerii to Rochipteris rollerii, and the presence of Hamshawvia and Stachyopitys in the Argentinean Triassic, which confirm the record of these reproductive structures as related to the ginkgoalean lineage. The most diverse plant fossil group in the Triassic of Cacheuta Hill is the seed fern order Umkomasiales (= Corystospermales). Four types of plant palaeocommunities were inferred for Uspallata Group: conifer-dominated deciduous forests, corystosperm-dominated deciduous forests, corystosperm-dominated evergreen forests, and corystosperm-dominated shrubby-arboreal. These palaecommunities were developed in mixed load meandering fluvial, palustrine and meromictic lacustrine systems under seasonal or oceanic subtropical climates, varying from semiarid to humid environments. The plant fossil assemblages present in the Uspallata Group at Cacheuta Hill shows similarities with the Molteno Formation from South Africa, indicating a Late Triassic (Carnian–Norian) age for the unit.
Fil: Bodnar, Josefina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Morel, E. M.. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina
Fil: Coturel, Eliana Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina
Fil: Spalletti, Luis Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Ganuza, Daniel Gustavo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Área Paleobotánica; Argentina
2nd Palaeontological Virtual Congress
Valencia
España
Paleontological Society
description The Triassic sedimentary rocks outcropping in the Cacheuta Hill (Precordillera, Mendoza province, Argentina) correspond to the upper part of the Uspallata Group (Late Triassic) comprising the younger levels of Potrerillos Formation, and the Cacheuta and Río Blanco formations. In this contribution, new fossil plant records in the Uspallata Group are described, the systematic palaeontology of previously described taxa is revised, and the plant-palaeocomunities are reconstructed. In addition, the studied unit is correlated with other Triassic formations of Gondwana. Our revision of the plant-fossil record from the Uspallata Group provides: the first record of the genus Androstrobus (Cycadales) and the genus Odyssianthus (Voltziales) in the Argentinean Triassic, the description of Rissikianthus as a new element of the Cacheuta palaeoflora, the transfer of Baiera rollerii to Rochipteris rollerii, and the presence of Hamshawvia and Stachyopitys in the Argentinean Triassic, which confirm the record of these reproductive structures as related to the ginkgoalean lineage. The most diverse plant fossil group in the Triassic of Cacheuta Hill is the seed fern order Umkomasiales (= Corystospermales). Four types of plant palaeocommunities were inferred for Uspallata Group: conifer-dominated deciduous forests, corystosperm-dominated deciduous forests, corystosperm-dominated evergreen forests, and corystosperm-dominated shrubby-arboreal. These palaecommunities were developed in mixed load meandering fluvial, palustrine and meromictic lacustrine systems under seasonal or oceanic subtropical climates, varying from semiarid to humid environments. The plant fossil assemblages present in the Uspallata Group at Cacheuta Hill shows similarities with the Molteno Formation from South Africa, indicating a Late Triassic (Carnian–Norian) age for the unit.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Congreso
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/201014
New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central Argentina; 2nd Palaeontological Virtual Congress; Valencia; España; 2020; 119-119
978-84-09-20283-6
CONICET Digital
CONICET
url http://hdl.handle.net/11336/201014
identifier_str_mv New plant fossil records and palaeoecology of the Uspallata Group (Late Triassic) at Cacheuta Hill, Cuyo Basin, west-central Argentina; 2nd Palaeontological Virtual Congress; Valencia; España; 2020; 119-119
978-84-09-20283-6
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.uv.es/palaeovc/Documentos%20/2nd%20PVC/2nd_PVC_Book_of_Abstracts.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/msword
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Palaeontological Virtual Congress
publisher.none.fl_str_mv Palaeontological Virtual Congress
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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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