An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin)

Late Floian conodonts are recorded from a thin limestone lens intercalated in the lower part of the San José Formation at the Carcel Puncco section (Inambari River), Eastern Cordillera of Peru. The conodont association includes Gothodus costulatus LINDSTRÖM, Protopanderodus rectus (LINDSTRÖM), Drepa...

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Autores: Gutiérrez-Marco, Juan Carlos|||0000-0003-4213-6144, Albanesi, Guillermo L.|||0000-0002-9103-7196, Sarmiento, Graciela Noemí, Carlotto Caillaux, Victor Santiago
Tipo de documento: artigo
Data de publicação:2008
País:España
Recursos:Universitat Autònoma de Barcelona
Repositório:Dipòsit Digital de Documents de la UAB
Idioma:inglês
OAI Identifier:oai:ddd.uab.cat:85946
Acesso em linha:https://ddd.uab.cat/record/85946
https://dx.doi.org/urn:doi:10.1344/105.000000248
Access Level:Acceso aberto
Palavra-chave:Conodonts
Lower Ordovician
Paleogeography
Gondwana
Peru
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spelling An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin)Gutiérrez-Marco, Juan Carlos|||0000-0003-4213-6144Albanesi, Guillermo L.|||0000-0002-9103-7196Sarmiento, Graciela NoemíCarlotto Caillaux, Victor SantiagoConodontsLower OrdovicianPaleogeographyGondwanaPeruLate Floian conodonts are recorded from a thin limestone lens intercalated in the lower part of the San José Formation at the Carcel Puncco section (Inambari River), Eastern Cordillera of Peru. The conodont association includes Gothodus costulatus LINDSTRÖM, Protopanderodus rectus (LINDSTRÖM), Drepanoistodus basiovalis (SERGEEVA), Drepanoistodus forceps (LINDSTRÖM), Drepanodus arcuatus PANDER, Trapezognathus diprion (LINDSTRÖM), Erraticodon patu COOPER, and Ansella cf. jemtlandica (LÖFGREN). This species association can be assigned to the upper part of the well-documented Oepikodus evae Zone. It is the northernmost conodont record of late Floian age in South America. This study updates the preliminary data presented in 2001 from this fossil locality, and it has important consequences for the paleogeographic reconstruction of the Peruvian part of the Central Andean Basin. In accordance with trilobites and brachiopods documented for the same strata, the conodont association represents a relatively cold-shallow-water platform environment. The record of late Floian conodonts towards the middle part of the San José Formation shows that the base of this unit in the studied section is considerably older than other sections of the distribution area, where its lowermost part is dated as early Darriwilian by the record of graptolites from the Undulograptus austrodentatus graptolite Zone. The diachronous initiation of the marine sedimentation makes the lower part of the Carcel Puncco shales penecontemporaneous with the volcanigenic rocks related with the Arequipa Massif, which transitionally underlie the San José Formation in other places of the Altiplano and the Eastern Cordillera of Peru.Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina). Museo de Paleontología 22008-01-0120082008-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/85946https://dx.doi.org/urn:doi:10.1344/105.000000248reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria.https://creativecommons.org/licenses/by-sa/3.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:859462026-06-06T12:50:31Z
dc.title.none.fl_str_mv An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin)
title An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin)
spellingShingle An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin)
Gutiérrez-Marco, Juan Carlos|||0000-0003-4213-6144
Conodonts
Lower Ordovician
Paleogeography
Gondwana
Peru
title_short An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin)
title_full An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin)
title_fullStr An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin)
title_full_unstemmed An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin)
title_sort An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin)
dc.creator.none.fl_str_mv Gutiérrez-Marco, Juan Carlos|||0000-0003-4213-6144
Albanesi, Guillermo L.|||0000-0002-9103-7196
Sarmiento, Graciela Noemí
Carlotto Caillaux, Victor Santiago
author Gutiérrez-Marco, Juan Carlos|||0000-0003-4213-6144
author_facet Gutiérrez-Marco, Juan Carlos|||0000-0003-4213-6144
Albanesi, Guillermo L.|||0000-0002-9103-7196
Sarmiento, Graciela Noemí
Carlotto Caillaux, Victor Santiago
author_role author
author2 Albanesi, Guillermo L.|||0000-0002-9103-7196
Sarmiento, Graciela Noemí
Carlotto Caillaux, Victor Santiago
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina). Museo de Paleontología
dc.subject.none.fl_str_mv Conodonts
Lower Ordovician
Paleogeography
Gondwana
Peru
topic Conodonts
Lower Ordovician
Paleogeography
Gondwana
Peru
description Late Floian conodonts are recorded from a thin limestone lens intercalated in the lower part of the San José Formation at the Carcel Puncco section (Inambari River), Eastern Cordillera of Peru. The conodont association includes Gothodus costulatus LINDSTRÖM, Protopanderodus rectus (LINDSTRÖM), Drepanoistodus basiovalis (SERGEEVA), Drepanoistodus forceps (LINDSTRÖM), Drepanodus arcuatus PANDER, Trapezognathus diprion (LINDSTRÖM), Erraticodon patu COOPER, and Ansella cf. jemtlandica (LÖFGREN). This species association can be assigned to the upper part of the well-documented Oepikodus evae Zone. It is the northernmost conodont record of late Floian age in South America. This study updates the preliminary data presented in 2001 from this fossil locality, and it has important consequences for the paleogeographic reconstruction of the Peruvian part of the Central Andean Basin. In accordance with trilobites and brachiopods documented for the same strata, the conodont association represents a relatively cold-shallow-water platform environment. The record of late Floian conodonts towards the middle part of the San José Formation shows that the base of this unit in the studied section is considerably older than other sections of the distribution area, where its lowermost part is dated as early Darriwilian by the record of graptolites from the Undulograptus austrodentatus graptolite Zone. The diachronous initiation of the marine sedimentation makes the lower part of the Carcel Puncco shales penecontemporaneous with the volcanigenic rocks related with the Arequipa Massif, which transitionally underlie the San José Formation in other places of the Altiplano and the Eastern Cordillera of Peru.
publishDate 2008
dc.date.none.fl_str_mv 2
2008-01-01
2008
2008-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/85946
https://dx.doi.org/urn:doi:10.1344/105.000000248
url https://ddd.uab.cat/record/85946
https://dx.doi.org/urn:doi:10.1344/105.000000248
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-sa/3.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-sa/3.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
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