Cenomanian transgression in the Basque-Cantabrian Basin (northern Spain) and associated faunal replacement

Abstract:The available data concerning the environmental changes and faunal replacements that occurred during the Cenomanian marine transgression in the North of Iberia are integrated and discussed on the basis of new evidence from the invertebrate and vertebrate fossil record. New stratigraphical d...

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Detalles Bibliográficos
Autores: Cavin, Lionel, Bermúdez Rochas, David Didier, López-Horgue, Mikel A., Poyato-Ariza, Francisco J.
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/6484
Acceso en línea:http://hdl.handle.net/10902/6484
Access Level:acceso abierto
Palabra clave:Cenomaniense
Iberia
Transgresión marina
Marine transgression
Faunal replacement
Acanthoceratoidea
Pachyrhizodontidae
Reemplazamiento faunístico
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oai_identifier_str oai:repositorio.unican.es:10902/6484
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Cenomanian transgression in the Basque-Cantabrian Basin (northern Spain) and associated faunal replacement
title Cenomanian transgression in the Basque-Cantabrian Basin (northern Spain) and associated faunal replacement
spellingShingle Cenomanian transgression in the Basque-Cantabrian Basin (northern Spain) and associated faunal replacement
Cavin, Lionel
Cenomaniense
Iberia
Transgresión marina
Marine transgression
Faunal replacement
Acanthoceratoidea
Pachyrhizodontidae
Cenomaniense
Reemplazamiento faunístico
title_short Cenomanian transgression in the Basque-Cantabrian Basin (northern Spain) and associated faunal replacement
title_full Cenomanian transgression in the Basque-Cantabrian Basin (northern Spain) and associated faunal replacement
title_fullStr Cenomanian transgression in the Basque-Cantabrian Basin (northern Spain) and associated faunal replacement
title_full_unstemmed Cenomanian transgression in the Basque-Cantabrian Basin (northern Spain) and associated faunal replacement
title_sort Cenomanian transgression in the Basque-Cantabrian Basin (northern Spain) and associated faunal replacement
dc.creator.none.fl_str_mv Cavin, Lionel
Bermúdez Rochas, David Didier
López-Horgue, Mikel A.
Poyato-Ariza, Francisco J.
author Cavin, Lionel
author_facet Cavin, Lionel
Bermúdez Rochas, David Didier
López-Horgue, Mikel A.
Poyato-Ariza, Francisco J.
author_role author
author2 Bermúdez Rochas, David Didier
López-Horgue, Mikel A.
Poyato-Ariza, Francisco J.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Cenomaniense
Iberia
Transgresión marina
Marine transgression
Faunal replacement
Acanthoceratoidea
Pachyrhizodontidae
Cenomaniense
Reemplazamiento faunístico
topic Cenomaniense
Iberia
Transgresión marina
Marine transgression
Faunal replacement
Acanthoceratoidea
Pachyrhizodontidae
Cenomaniense
Reemplazamiento faunístico
description Abstract:The available data concerning the environmental changes and faunal replacements that occurred during the Cenomanian marine transgression in the North of Iberia are integrated and discussed on the basis of new evidence from the invertebrate and vertebrate fossil record. New stratigraphical data and the reassessment of known stratigraphic sections support the correlation of the Cenomanian carbonate-ramp successions from the Iberian margin to the centre of the Basque-Cantabrian Basin during a major transgressive episode. This new stratigraphical framework is the key to understand the changing oceanographic conditions in the area that resulted from a progressive inundation of the Iberian continental platform. This transgression seems to have triggered major faunal replacements in this particular geographic area, starting out around the Albian-Cenomanian transition. Ammonite faunal replacement led to a new radiation of this group that spread out rapidly until their new decline around the Cenomanian-Turonian boundary. A new record of Calycoceras (Newboldiceras) asiaticum spinosum and the first record of a Pachyrhizodontidae indet. (Actinopterygii, Teleostei, Crossognathiformes) from the Iberian Peninsula are reported here from the Cenomanian basal units of the major Late Cretaceous transgressive episode. The two new specimens come from the same level in an outer marine ramp succession near Amurrio, Basque Country, northern Spain, and are representatives of the Cenomanian faunal turnover. The new record of a pachyrhizodontoid fish from the Cretaceous of Iberia is an indication of the ichthyofaunal replacement in this part of the world. The relict fish faunas from the Early Cretaceous of the former island of Iberia were mostly formed by basal neopterygian taxa closely related to those of the marine Jurassic of other parts of Europe. During the Early-Late Cretaceous transition they were replaced by the teleostean-based new stock that constitutes the basis of the Late Cretaceous, Cenozoic, and Recent faunas.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-10-30
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10902/6484
url http://hdl.handle.net/10902/6484
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
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
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidad Complutense
Consejo Superior de Investigaciones Científicas (CSIC)
publisher.none.fl_str_mv Universidad Complutense
Consejo Superior de Investigaciones Científicas (CSIC)
dc.source.none.fl_str_mv Journal of Iberian Geology 40 (3)
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling Cenomanian transgression in the Basque-Cantabrian Basin (northern Spain) and associated faunal replacementCavin, LionelBermúdez Rochas, David DidierLópez-Horgue, Mikel A.Poyato-Ariza, Francisco J.CenomanienseIberiaTransgresión marinaMarine transgressionFaunal replacementAcanthoceratoideaPachyrhizodontidaeCenomanienseReemplazamiento faunísticoAbstract:The available data concerning the environmental changes and faunal replacements that occurred during the Cenomanian marine transgression in the North of Iberia are integrated and discussed on the basis of new evidence from the invertebrate and vertebrate fossil record. New stratigraphical data and the reassessment of known stratigraphic sections support the correlation of the Cenomanian carbonate-ramp successions from the Iberian margin to the centre of the Basque-Cantabrian Basin during a major transgressive episode. This new stratigraphical framework is the key to understand the changing oceanographic conditions in the area that resulted from a progressive inundation of the Iberian continental platform. This transgression seems to have triggered major faunal replacements in this particular geographic area, starting out around the Albian-Cenomanian transition. Ammonite faunal replacement led to a new radiation of this group that spread out rapidly until their new decline around the Cenomanian-Turonian boundary. A new record of Calycoceras (Newboldiceras) asiaticum spinosum and the first record of a Pachyrhizodontidae indet. (Actinopterygii, Teleostei, Crossognathiformes) from the Iberian Peninsula are reported here from the Cenomanian basal units of the major Late Cretaceous transgressive episode. The two new specimens come from the same level in an outer marine ramp succession near Amurrio, Basque Country, northern Spain, and are representatives of the Cenomanian faunal turnover. The new record of a pachyrhizodontoid fish from the Cretaceous of Iberia is an indication of the ichthyofaunal replacement in this part of the world. The relict fish faunas from the Early Cretaceous of the former island of Iberia were mostly formed by basal neopterygian taxa closely related to those of the marine Jurassic of other parts of Europe. During the Early-Late Cretaceous transition they were replaced by the teleostean-based new stock that constitutes the basis of the Late Cretaceous, Cenozoic, and Recent faunas.Resumen: Se integran y discuten los datos disponibles sobre los cambios ambientales y los reemplazamientos faunísticos que sucedieron en el norte de Iberia durante la transgresión del Cenomaniense, incluyéndose nuevas evidencias de los registros fósiles de invertebrados y vertebrados. Nuevos datos estratigráficos y la revisión de secciones estratigráficas conocidas proporcionan fundamentos para la correlación de las series de rampa carbonatada cenomanienses desde el margen ibérico hasta la zona central de la Cuenca Vasco-Cantábrica, desarrolladas durante un importante episodio transgresivo. Este nuevo esquema estratigráfico configura la base para entender las cambiantes condiciones oceanográficas en la zona de estudio, las cuales resultaron de una progresiva inundación del margen continental ibérico. Esta transgresión se vislumbra como factor determinante para reemplazamientos faunísticos en esta zona, que comenzaron durante el tránsito Albiense-Cenomaniense. Los cambios en las faunas de ammonites condujeron hacia una rápida radiación del grupo hasta un nuevo declive alrededor del tránsito Cenomaniense-Turoniense. Se describen aquí un nuevo registro de Calycoceras (Newboldiceras) asiaticum spinosum y el primer registro de Pachyrhizodontidae indet. (Actinopterigii, Teleostei, Crossognathiformes) de la Península Ibérica, provenientes de la parte basaldel episodio transgresivo cenomaniense. Ambos son representativos del cambio faunístico y proceden del mismo nivel estratigráfico en una serie de rampa carbonatada externa cerca de Amurrio, País Vasco, España. Asimismo, este primer Pachyrhizodontoidei del Cretácico de Iberia indica un cambio importante en las faunas de teleósteos en esta parte del mundo. Las faunas relictas de peces del Cretácico inferior de la entonces isla de Iberia estaban básicamente compuestas por neopterigios basales directamente relacionados con los del Jurásico marino de otras partes de Europa. Durante la transición Cretácico Inferior-Cretácico Superior fueron paulatinamente reemplazados por nuevos grupos de teleósteos, los cuales constituyen la mayor parte de las formas del Cretácico Superior, del Cenozoico y actuales.Universidad ComplutenseConsejo Superior de Investigaciones Científicas (CSIC)Universidad de Cantabria20142014-10-30journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/6484Journal of Iberian Geology 40 (3)reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/64842026-06-02T12:39:31Z
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