Latest Ordovician-earliest Silurian chitinozoans from the Puna region, north-western Argentina (Western Gondwana)

Autores
de la Puente, Graciela Susana; Paris, Florentin; Vaccari, Norberto Emilio
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión aceptada
Descripción
Late Ordovician–early Silurian chitinozoans from the Upper Member of the Salar del Rincón Formation of northwestern Argentina are described. The study area belongs to the Central Andean Basin situated on the western Gondwana margin during the Early Palaeozoic. Chitinozoan assemblages correlate with those from Northern Gondwana, where the effects of the glacial and postglacial events that occurred around the Ordovician–Silurian boundary, are quite well-documented. The recovered chitinozoan associations from the upper part of the Salar del Rincón Formation record the uppermost Ordovician–lowest Silurian deposits representing the postglacial stage of the late Hirnantian glaciation. Similar strata are usually absent in other parts of the Central Andean Basin. Tasmanites tzadiaensis is recovered for the first time outside of the northeast of Africa, supporting the northern Gondwana affinities. Associated land-derived components indicate a nearshore environment with terrestrial input. The other associated palynomorphs support the latest Hirnantian–earliest Rhuddanian postglacial stage correlation, as well. The ranges of several Late Ordovician– early Silurian Spinachitina and Cyathochitina species are discussed in terms of the Ordovician–Silurian boundary. Five new species are formally described: Spinachitina titae sp. nov., Cyathochitina brussai sp. nov., Cyathochitina lariensis sp. nov., Cyathochitina punaensis sp. nov. and Ramochitina deynouxi sp. nov.
Fil: de la Puente, Graciela Susana. Universidad Nacional del Comahue. Facultad de Ciencias Agrarias; Argentina.
Fil: de la Puente, Graciela Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología; Argentina.
Fil: de la Puente, Graciela Susana. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; Argentina
Fil: Paris, Florentin. Universite de Rennes I. Centre National de la Recherche Scientifique; Francia.
Fil: Vaccari, Norberto Emilio. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales; Argentina.
Fil: Vaccari, Norberto Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fuente
Bulletin of Geosciences • Vol. 95, 4, 2020
Materia
Chitinozoans
Latest Hirnantian
Earliest Rhuddanian
Argentine Puna
Ciencias de la Tierra y Medio Ambiente
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
Repositorio Digital Institucional (UNCo)
Institución
Universidad Nacional del Comahue
OAI Identificador
oai:rdi.uncoma.edu.ar:uncomaid/18960
Acceder
id RDIUNCO_28bc7c451329affcc18baa3085666b98
oai_identifier_str oai:rdi.uncoma.edu.ar:uncomaid/18960
network_acronym_str RDIUNCO
repository_id_str 7108
network_name_str Repositorio Digital Institucional (UNCo)
spelling Latest Ordovician-earliest Silurian chitinozoans from the Puna region, north-western Argentina (Western Gondwana)de la Puente, Graciela SusanaParis, FlorentinVaccari, Norberto EmilioChitinozoansLatest HirnantianEarliest RhuddanianArgentine PunaCiencias de la Tierra y Medio AmbienteLate Ordovician–early Silurian chitinozoans from the Upper Member of the Salar del Rincón Formation of northwestern Argentina are described. The study area belongs to the Central Andean Basin situated on the western Gondwana margin during the Early Palaeozoic. Chitinozoan assemblages correlate with those from Northern Gondwana, where the effects of the glacial and postglacial events that occurred around the Ordovician–Silurian boundary, are quite well-documented. The recovered chitinozoan associations from the upper part of the Salar del Rincón Formation record the uppermost Ordovician–lowest Silurian deposits representing the postglacial stage of the late Hirnantian glaciation. Similar strata are usually absent in other parts of the Central Andean Basin. Tasmanites tzadiaensis is recovered for the first time outside of the northeast of Africa, supporting the northern Gondwana affinities. Associated land-derived components indicate a nearshore environment with terrestrial input. The other associated palynomorphs support the latest Hirnantian–earliest Rhuddanian postglacial stage correlation, as well. The ranges of several Late Ordovician– early Silurian Spinachitina and Cyathochitina species are discussed in terms of the Ordovician–Silurian boundary. Five new species are formally described: Spinachitina titae sp. nov., Cyathochitina brussai sp. nov., Cyathochitina lariensis sp. nov., Cyathochitina punaensis sp. nov. and Ramochitina deynouxi sp. nov.Fil: de la Puente, Graciela Susana. Universidad Nacional del Comahue. Facultad de Ciencias Agrarias; Argentina.Fil: de la Puente, Graciela Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología; Argentina.Fil: de la Puente, Graciela Susana. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; ArgentinaFil: Paris, Florentin. Universite de Rennes I. Centre National de la Recherche Scientifique; Francia.Fil: Vaccari, Norberto Emilio. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales; Argentina.Fil: Vaccari, Norberto Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Czech Geological Survey2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfpp. 391-418application/pdf1802-8225https://rdi.uncoma.edu.ar/handle/uncomaid/18960Bulletin of Geosciences • Vol. 95, 4, 2020reponame:Repositorio Digital Institucional (UNCo)instname:Universidad Nacional del Comahueenghttp://www.geology.cz/bulletin/contents/art1769https://ri.conicet.gov.ar/handle/11336/127608info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/2025-10-16T10:05:29Zoai:rdi.uncoma.edu.ar:uncomaid/18960instacron:UNCoInstitucionalhttp://rdi.uncoma.edu.ar/Universidad públicaNo correspondehttp://rdi.uncoma.edu.ar/oaimirtha.mateo@biblioteca.uncoma.edu.ar; adriana.acuna@biblioteca.uncoma.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:71082025-10-16 10:05:29.585Repositorio Digital Institucional (UNCo) - Universidad Nacional del Comahuefalse
dc.title.none.fl_str_mv Latest Ordovician-earliest Silurian chitinozoans from the Puna region, north-western Argentina (Western Gondwana)
title Latest Ordovician-earliest Silurian chitinozoans from the Puna region, north-western Argentina (Western Gondwana)
spellingShingle Latest Ordovician-earliest Silurian chitinozoans from the Puna region, north-western Argentina (Western Gondwana)
de la Puente, Graciela Susana
Chitinozoans
Latest Hirnantian
Earliest Rhuddanian
Argentine Puna
Ciencias de la Tierra y Medio Ambiente
title_short Latest Ordovician-earliest Silurian chitinozoans from the Puna region, north-western Argentina (Western Gondwana)
title_full Latest Ordovician-earliest Silurian chitinozoans from the Puna region, north-western Argentina (Western Gondwana)
title_fullStr Latest Ordovician-earliest Silurian chitinozoans from the Puna region, north-western Argentina (Western Gondwana)
title_full_unstemmed Latest Ordovician-earliest Silurian chitinozoans from the Puna region, north-western Argentina (Western Gondwana)
title_sort Latest Ordovician-earliest Silurian chitinozoans from the Puna region, north-western Argentina (Western Gondwana)
dc.creator.none.fl_str_mv de la Puente, Graciela Susana
Paris, Florentin
Vaccari, Norberto Emilio
author de la Puente, Graciela Susana
author_facet de la Puente, Graciela Susana
Paris, Florentin
Vaccari, Norberto Emilio
author_role author
author2 Paris, Florentin
Vaccari, Norberto Emilio
author2_role author
author
dc.subject.none.fl_str_mv Chitinozoans
Latest Hirnantian
Earliest Rhuddanian
Argentine Puna
Ciencias de la Tierra y Medio Ambiente
topic Chitinozoans
Latest Hirnantian
Earliest Rhuddanian
Argentine Puna
Ciencias de la Tierra y Medio Ambiente
dc.description.none.fl_txt_mv Late Ordovician–early Silurian chitinozoans from the Upper Member of the Salar del Rincón Formation of northwestern Argentina are described. The study area belongs to the Central Andean Basin situated on the western Gondwana margin during the Early Palaeozoic. Chitinozoan assemblages correlate with those from Northern Gondwana, where the effects of the glacial and postglacial events that occurred around the Ordovician–Silurian boundary, are quite well-documented. The recovered chitinozoan associations from the upper part of the Salar del Rincón Formation record the uppermost Ordovician–lowest Silurian deposits representing the postglacial stage of the late Hirnantian glaciation. Similar strata are usually absent in other parts of the Central Andean Basin. Tasmanites tzadiaensis is recovered for the first time outside of the northeast of Africa, supporting the northern Gondwana affinities. Associated land-derived components indicate a nearshore environment with terrestrial input. The other associated palynomorphs support the latest Hirnantian–earliest Rhuddanian postglacial stage correlation, as well. The ranges of several Late Ordovician– early Silurian Spinachitina and Cyathochitina species are discussed in terms of the Ordovician–Silurian boundary. Five new species are formally described: Spinachitina titae sp. nov., Cyathochitina brussai sp. nov., Cyathochitina lariensis sp. nov., Cyathochitina punaensis sp. nov. and Ramochitina deynouxi sp. nov.
Fil: de la Puente, Graciela Susana. Universidad Nacional del Comahue. Facultad de Ciencias Agrarias; Argentina.
Fil: de la Puente, Graciela Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología; Argentina.
Fil: de la Puente, Graciela Susana. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; Argentina
Fil: Paris, Florentin. Universite de Rennes I. Centre National de la Recherche Scientifique; Francia.
Fil: Vaccari, Norberto Emilio. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales; Argentina.
Fil: Vaccari, Norberto Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
description Late Ordovician–early Silurian chitinozoans from the Upper Member of the Salar del Rincón Formation of northwestern Argentina are described. The study area belongs to the Central Andean Basin situated on the western Gondwana margin during the Early Palaeozoic. Chitinozoan assemblages correlate with those from Northern Gondwana, where the effects of the glacial and postglacial events that occurred around the Ordovician–Silurian boundary, are quite well-documented. The recovered chitinozoan associations from the upper part of the Salar del Rincón Formation record the uppermost Ordovician–lowest Silurian deposits representing the postglacial stage of the late Hirnantian glaciation. Similar strata are usually absent in other parts of the Central Andean Basin. Tasmanites tzadiaensis is recovered for the first time outside of the northeast of Africa, supporting the northern Gondwana affinities. Associated land-derived components indicate a nearshore environment with terrestrial input. The other associated palynomorphs support the latest Hirnantian–earliest Rhuddanian postglacial stage correlation, as well. The ranges of several Late Ordovician– early Silurian Spinachitina and Cyathochitina species are discussed in terms of the Ordovician–Silurian boundary. Five new species are formally described: Spinachitina titae sp. nov., Cyathochitina brussai sp. nov., Cyathochitina lariensis sp. nov., Cyathochitina punaensis sp. nov. and Ramochitina deynouxi sp. nov.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv 1802-8225
https://rdi.uncoma.edu.ar/handle/uncomaid/18960
identifier_str_mv 1802-8225
url https://rdi.uncoma.edu.ar/handle/uncomaid/18960
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://www.geology.cz/bulletin/contents/art1769
https://ri.conicet.gov.ar/handle/11336/127608
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
pp. 391-418
application/pdf
dc.publisher.none.fl_str_mv Czech Geological Survey
publisher.none.fl_str_mv Czech Geological Survey
dc.source.none.fl_str_mv Bulletin of Geosciences • Vol. 95, 4, 2020
reponame:Repositorio Digital Institucional (UNCo)
instname:Universidad Nacional del Comahue
reponame_str Repositorio Digital Institucional (UNCo)
collection Repositorio Digital Institucional (UNCo)
instname_str Universidad Nacional del Comahue
repository.name.fl_str_mv Repositorio Digital Institucional (UNCo) - Universidad Nacional del Comahue
repository.mail.fl_str_mv mirtha.mateo@biblioteca.uncoma.edu.ar; adriana.acuna@biblioteca.uncoma.edu.ar
_version_ 1846145864935931904
score 12.712165

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