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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/79675
Ver los metadatos del registro completo
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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 Técnicas2025-09-03T09:54:10Zoai: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:34982025-09-03 09:54:11.121CONICET 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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1842269269765652480 |
score |
13.13397 |