Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina

Autores
Tortello, Marcelo Franco; Benítez, María del Huerto; Esteban, Susana Beatriz
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The area west of Purmamarca is a classic locality of the upper Tremadocian (Lower Ordovician) of the central Cordillera Oriental, northwestern Argentina. There, the upper member of the Coquena Formation documents the vertical passage of offshore to shoreface settings affected by storm activity. Updated information on the stratigraphic distribution of the trilobites from the Notopeltis orthometopa Zone in the Quebrada de Chalala is provided. Offshore facies from the lower part of the succession contain high diversity assemblages including Asaphellus jujuanus, Geragnostus callaveiformis, G. callaveiformis?, G. nesossii, Conophrys sp., Bienvillia rectifrons, Parabolinella triarthroides, Apatokephalus tibicen, Ceratopyge forficuloides, Pyrimetopus pyrifrons and Rossaspis? sp. In contrast, shoreface deposits of the upper part of the formation have very low diversity faunas, which are composed almost exclusively of Notopeltis orthometopa and Mekynophrys nanna. The FAD of N. orthometopa and M. nanna are located well above the first records of Asaphellus jujuanus and other trilobites. This fact may assist in refining the current biostratigraphic scheme of the upper Tremadocian of Argentina.
Fil: Tortello, Marcelo Franco. 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. División Paleozoología Invertebrados; Argentina
Fil: Benítez, María del Huerto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: Esteban, Susana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Materia
Trilobites
Upper Tremadocian
Coquena Formation
Cordillera Oriental
Sedimentary Facies
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:11336/55080
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/55080
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern ArgentinaTortello, Marcelo FrancoBenítez, María del HuertoEsteban, Susana BeatrizTrilobitesUpper TremadocianCoquena FormationCordillera OrientalSedimentary Facieshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The area west of Purmamarca is a classic locality of the upper Tremadocian (Lower Ordovician) of the central Cordillera Oriental, northwestern Argentina. There, the upper member of the Coquena Formation documents the vertical passage of offshore to shoreface settings affected by storm activity. Updated information on the stratigraphic distribution of the trilobites from the Notopeltis orthometopa Zone in the Quebrada de Chalala is provided. Offshore facies from the lower part of the succession contain high diversity assemblages including Asaphellus jujuanus, Geragnostus callaveiformis, G. callaveiformis?, G. nesossii, Conophrys sp., Bienvillia rectifrons, Parabolinella triarthroides, Apatokephalus tibicen, Ceratopyge forficuloides, Pyrimetopus pyrifrons and Rossaspis? sp. In contrast, shoreface deposits of the upper part of the formation have very low diversity faunas, which are composed almost exclusively of Notopeltis orthometopa and Mekynophrys nanna. The FAD of N. orthometopa and M. nanna are located well above the first records of Asaphellus jujuanus and other trilobites. This fact may assist in refining the current biostratigraphic scheme of the upper Tremadocian of Argentina.Fil: Tortello, Marcelo Franco. 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. División Paleozoología Invertebrados; ArgentinaFil: Benítez, María del Huerto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; ArgentinaFil: Esteban, Susana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; ArgentinaAssociation of Australasian Palaeontologists2016-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/55080Tortello, Marcelo Franco; Benítez, María del Huerto; Esteban, Susana Beatriz; Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina; Association of Australasian Palaeontologists; Australasian Palaeontological Memoirs; 49; 5-2016; 1-190810-88892205-8877CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.gsa.org.au/Public/Public/Specialist_Groups/Australasian_Palaeontologists_AAP.aspxinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:32Zoai:ri.conicet.gov.ar:11336/55080instacron: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 09:45:33.088CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina
title Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina
spellingShingle Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina
Tortello, Marcelo Franco
Trilobites
Upper Tremadocian
Coquena Formation
Cordillera Oriental
Sedimentary Facies
title_short Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina
title_full Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina
title_fullStr Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina
title_full_unstemmed Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina
title_sort Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina
dc.creator.none.fl_str_mv Tortello, Marcelo Franco
Benítez, María del Huerto
Esteban, Susana Beatriz
author Tortello, Marcelo Franco
author_facet Tortello, Marcelo Franco
Benítez, María del Huerto
Esteban, Susana Beatriz
author_role author
author2 Benítez, María del Huerto
Esteban, Susana Beatriz
author2_role author
author
dc.subject.none.fl_str_mv Trilobites
Upper Tremadocian
Coquena Formation
Cordillera Oriental
Sedimentary Facies
topic Trilobites
Upper Tremadocian
Coquena Formation
Cordillera Oriental
Sedimentary Facies
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 area west of Purmamarca is a classic locality of the upper Tremadocian (Lower Ordovician) of the central Cordillera Oriental, northwestern Argentina. There, the upper member of the Coquena Formation documents the vertical passage of offshore to shoreface settings affected by storm activity. Updated information on the stratigraphic distribution of the trilobites from the Notopeltis orthometopa Zone in the Quebrada de Chalala is provided. Offshore facies from the lower part of the succession contain high diversity assemblages including Asaphellus jujuanus, Geragnostus callaveiformis, G. callaveiformis?, G. nesossii, Conophrys sp., Bienvillia rectifrons, Parabolinella triarthroides, Apatokephalus tibicen, Ceratopyge forficuloides, Pyrimetopus pyrifrons and Rossaspis? sp. In contrast, shoreface deposits of the upper part of the formation have very low diversity faunas, which are composed almost exclusively of Notopeltis orthometopa and Mekynophrys nanna. The FAD of N. orthometopa and M. nanna are located well above the first records of Asaphellus jujuanus and other trilobites. This fact may assist in refining the current biostratigraphic scheme of the upper Tremadocian of Argentina.
Fil: Tortello, Marcelo Franco. 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. División Paleozoología Invertebrados; Argentina
Fil: Benítez, María del Huerto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: Esteban, Susana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
description The area west of Purmamarca is a classic locality of the upper Tremadocian (Lower Ordovician) of the central Cordillera Oriental, northwestern Argentina. There, the upper member of the Coquena Formation documents the vertical passage of offshore to shoreface settings affected by storm activity. Updated information on the stratigraphic distribution of the trilobites from the Notopeltis orthometopa Zone in the Quebrada de Chalala is provided. Offshore facies from the lower part of the succession contain high diversity assemblages including Asaphellus jujuanus, Geragnostus callaveiformis, G. callaveiformis?, G. nesossii, Conophrys sp., Bienvillia rectifrons, Parabolinella triarthroides, Apatokephalus tibicen, Ceratopyge forficuloides, Pyrimetopus pyrifrons and Rossaspis? sp. In contrast, shoreface deposits of the upper part of the formation have very low diversity faunas, which are composed almost exclusively of Notopeltis orthometopa and Mekynophrys nanna. The FAD of N. orthometopa and M. nanna are located well above the first records of Asaphellus jujuanus and other trilobites. This fact may assist in refining the current biostratigraphic scheme of the upper Tremadocian of Argentina.
publishDate 2016
dc.date.none.fl_str_mv 2016-05
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/11336/55080
Tortello, Marcelo Franco; Benítez, María del Huerto; Esteban, Susana Beatriz; Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina; Association of Australasian Palaeontologists; Australasian Palaeontological Memoirs; 49; 5-2016; 1-19
0810-8889
2205-8877
CONICET Digital
CONICET
url http://hdl.handle.net/11336/55080
identifier_str_mv Tortello, Marcelo Franco; Benítez, María del Huerto; Esteban, Susana Beatriz; Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina; Association of Australasian Palaeontologists; Australasian Palaeontological Memoirs; 49; 5-2016; 1-19
0810-8889
2205-8877
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.gsa.org.au/Public/Public/Specialist_Groups/Australasian_Palaeontologists_AAP.aspx
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 Association of Australasian Palaeontologists
publisher.none.fl_str_mv Association of Australasian Palaeontologists
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 13.13397

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