The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern Paraguay

Autores
Alfaro, Marta Beatriz; Uriz, Norberto Javier; Cingolani, Carlos Alberto; Tortello, Marcelo Franco; Bidone, Andrea Rosa; Galeano Inchausti, Julio César
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this contribution we report a low diversity graptolite-trilobite fauna from the Eusebio Ayala Formation (Itacurubí Group) exposed at the intracratonic Paraná Basin of eastern Paraguay. Analyzed sections are composed dominantly of red micaceous mudstones with intercalations of purple sandstones located about 60 km east of Asunción City. Shelly faunas such as brachiopods, bivalves, gastropods and cephalopods are abundant at many exposures. The graptolites Normalograptus persculptus (Elles and Wood), Normalograptus normalis (Lapworth) and Normalograptus medius (Törnquist), and the dalmanitid trilobite Mucronaspis sp. are described herein. Since these taxa are characteristic elements of the N. persculptus Biozone, the successions studied are assigned to the Hirnantian-Llandovery transition. The Eusebio Ayala Formation is correlated with coeval, postglacial units of South America and Africa in southwestern Gondwana, and the palaeobiogeographical implications of its faunas are discussed.
Fil: Alfaro, Marta Beatriz. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Uriz, Norberto Javier. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Cingolani, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 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: Tortello, Marcelo Franco. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bidone, Andrea Rosa. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División geología; Argentina
Fil: Galeano Inchausti, Julio César. Ministerio de Obras Públicas y Comunicaciones; Paraguay
Materia
Hirnantian
Paraná Basin
Eastern Paraguay
Graptolites-Trilobites
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:11336/79675
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/79675
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern ParaguayAlfaro, Marta BeatrizUriz, Norberto JavierCingolani, Carlos AlbertoTortello, Marcelo FrancoBidone, Andrea RosaGaleano Inchausti, Julio CésarHirnantianParaná BasinEastern ParaguayGraptolites-Trilobiteshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1In this contribution we report a low diversity graptolite-trilobite fauna from the Eusebio Ayala Formation (Itacurubí Group) exposed at the intracratonic Paraná Basin of eastern Paraguay. Analyzed sections are composed dominantly of red micaceous mudstones with intercalations of purple sandstones located about 60 km east of Asunción City. Shelly faunas such as brachiopods, bivalves, gastropods and cephalopods are abundant at many exposures. The graptolites Normalograptus persculptus (Elles and Wood), Normalograptus normalis (Lapworth) and Normalograptus medius (Törnquist), and the dalmanitid trilobite Mucronaspis sp. are described herein. Since these taxa are characteristic elements of the N. persculptus Biozone, the successions studied are assigned to the Hirnantian-Llandovery transition. The Eusebio Ayala Formation is correlated with coeval, postglacial units of South America and Africa in southwestern Gondwana, and the palaeobiogeographical implications of its faunas are discussed.Fil: Alfaro, Marta Beatriz. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Uriz, Norberto Javier. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Cingolani, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 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: Tortello, Marcelo Franco. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Bidone, Andrea Rosa. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División geología; ArgentinaFil: Galeano Inchausti, Julio César. Ministerio de Obras Públicas y Comunicaciones; ParaguayJohn Wiley & Sons Ltd2011-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/79675Alfaro, Marta Beatriz; Uriz, Norberto Javier; Cingolani, Carlos Alberto; Tortello, Marcelo Franco; Bidone, Andrea Rosa; et al.; The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern Paraguay; John Wiley & Sons Ltd; Geological Journal (Chichester); 48; 12-2011; 236-2470072-10501099-1034CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/loi/10991034info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:54:37Zoai:ri.conicet.gov.ar:11336/79675instacron: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:34982025-09-29 09:54:37.419CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern Paraguay
title The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern Paraguay
spellingShingle The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern Paraguay
Alfaro, Marta Beatriz
Hirnantian
Paraná Basin
Eastern Paraguay
Graptolites-Trilobites
title_short The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern Paraguay
title_full The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern Paraguay
title_fullStr The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern Paraguay
title_full_unstemmed The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern Paraguay
title_sort The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern Paraguay
dc.creator.none.fl_str_mv Alfaro, Marta Beatriz
Uriz, Norberto Javier
Cingolani, Carlos Alberto
Tortello, Marcelo Franco
Bidone, Andrea Rosa
Galeano Inchausti, Julio César
author Alfaro, Marta Beatriz
author_facet Alfaro, Marta Beatriz
Uriz, Norberto Javier
Cingolani, Carlos Alberto
Tortello, Marcelo Franco
Bidone, Andrea Rosa
Galeano Inchausti, Julio César
author_role author
author2 Uriz, Norberto Javier
Cingolani, Carlos Alberto
Tortello, Marcelo Franco
Bidone, Andrea Rosa
Galeano Inchausti, Julio César
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Hirnantian
Paraná Basin
Eastern Paraguay
Graptolites-Trilobites
topic Hirnantian
Paraná Basin
Eastern Paraguay
Graptolites-Trilobites
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this contribution we report a low diversity graptolite-trilobite fauna from the Eusebio Ayala Formation (Itacurubí Group) exposed at the intracratonic Paraná Basin of eastern Paraguay. Analyzed sections are composed dominantly of red micaceous mudstones with intercalations of purple sandstones located about 60 km east of Asunción City. Shelly faunas such as brachiopods, bivalves, gastropods and cephalopods are abundant at many exposures. The graptolites Normalograptus persculptus (Elles and Wood), Normalograptus normalis (Lapworth) and Normalograptus medius (Törnquist), and the dalmanitid trilobite Mucronaspis sp. are described herein. Since these taxa are characteristic elements of the N. persculptus Biozone, the successions studied are assigned to the Hirnantian-Llandovery transition. The Eusebio Ayala Formation is correlated with coeval, postglacial units of South America and Africa in southwestern Gondwana, and the palaeobiogeographical implications of its faunas are discussed.
Fil: Alfaro, Marta Beatriz. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Uriz, Norberto Javier. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Cingolani, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 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: Tortello, Marcelo Franco. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bidone, Andrea Rosa. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División geología; Argentina
Fil: Galeano Inchausti, Julio César. Ministerio de Obras Públicas y Comunicaciones; Paraguay
description In this contribution we report a low diversity graptolite-trilobite fauna from the Eusebio Ayala Formation (Itacurubí Group) exposed at the intracratonic Paraná Basin of eastern Paraguay. Analyzed sections are composed dominantly of red micaceous mudstones with intercalations of purple sandstones located about 60 km east of Asunción City. Shelly faunas such as brachiopods, bivalves, gastropods and cephalopods are abundant at many exposures. The graptolites Normalograptus persculptus (Elles and Wood), Normalograptus normalis (Lapworth) and Normalograptus medius (Törnquist), and the dalmanitid trilobite Mucronaspis sp. are described herein. Since these taxa are characteristic elements of the N. persculptus Biozone, the successions studied are assigned to the Hirnantian-Llandovery transition. The Eusebio Ayala Formation is correlated with coeval, postglacial units of South America and Africa in southwestern Gondwana, and the palaeobiogeographical implications of its faunas are discussed.
publishDate 2011
dc.date.none.fl_str_mv 2011-12
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/11336/79675
Alfaro, Marta Beatriz; Uriz, Norberto Javier; Cingolani, Carlos Alberto; Tortello, Marcelo Franco; Bidone, Andrea Rosa; et al.; The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern Paraguay; John Wiley & Sons Ltd; Geological Journal (Chichester); 48; 12-2011; 236-247
0072-1050
1099-1034
CONICET Digital
CONICET
url http://hdl.handle.net/11336/79675
identifier_str_mv Alfaro, Marta Beatriz; Uriz, Norberto Javier; Cingolani, Carlos Alberto; Tortello, Marcelo Franco; Bidone, Andrea Rosa; et al.; The Normalograptus persculptus Biozone in the Eusebio Ayala Formation, Paraná Basin, Eastern Paraguay; John Wiley & Sons Ltd; Geological Journal (Chichester); 48; 12-2011; 236-247
0072-1050
1099-1034
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://onlinelibrary.wiley.com/loi/10991034
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/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons Ltd
publisher.none.fl_str_mv John Wiley & Sons Ltd
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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score 13.070432

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