Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina

Autores
del Río, Claudia Julia; Martínez, Sergio A.; Stilwell, Jeffrey D.; Concheyro, Graciela
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
New mollusc and echinoid faunas are recorded from exposures of the Roca Formation at Cerros Bayos (La Pampa Province) and assigned to the Maastrichtian - Danian (CC26 - NP3 Zones of Martini 1971) on the basis of the associated nannofossil assemblages. The macroinvertebrate assemblages show increased diversity and abundance of molluscs from Zones NP1 to NP3. One new Danian echinoid, the spatangoid Bolbaster argentinensis sp. nov., is described. At least 19 molluscan genera are recognized; 14 of these, together with seven species, are identified for the first time from Danian exposures of La Pampa Province. An equivocal record of Pyropsis tumida Wilckens, 1905 may extend the range of this tudiclid gastropod from the latest Cretaceous into the Danian. The Cerros Bayos exposures substantially increase our knowledge of diversity trends and biotic recovery immediately following the Cretaceous - Paleogene boundary event, and provide clues to the composition of the little-studied earliest Paleogene faunas in southern Patagonia.
Fil: del Río, Claudia Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
Fil: Martínez, Sergio A.. Instituto de Geología y Paleontología. Facultad de Ciencias. Montevideo; Uruguay
Fil: Stilwell, Jeffrey D.. School of Geosciences, Monash University; Australia
Fil: Concheyro, Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Materia
ARGENTINA
BIOSTRATIGRAPHY
DANIAN
ECHINOIDS
JAGÜEL FORMATION
LA PAMPA PROVINCE
MOLLUSCS
NANNOFOSSILS
PALAEONTOLOGY
ROCA FORMATION
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:11336/92757
Acceder
id CONICETDig_7f07f1748b656aa0aeda245041cc0405
oai_identifier_str oai:ri.conicet.gov.ar:11336/92757
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentinadel Río, Claudia JuliaMartínez, Sergio A.Stilwell, Jeffrey D.Concheyro, GracielaARGENTINABIOSTRATIGRAPHYDANIANECHINOIDSJAGÜEL FORMATIONLA PAMPA PROVINCEMOLLUSCSNANNOFOSSILSPALAEONTOLOGYROCA FORMATIONhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1New mollusc and echinoid faunas are recorded from exposures of the Roca Formation at Cerros Bayos (La Pampa Province) and assigned to the Maastrichtian - Danian (CC26 - NP3 Zones of Martini 1971) on the basis of the associated nannofossil assemblages. The macroinvertebrate assemblages show increased diversity and abundance of molluscs from Zones NP1 to NP3. One new Danian echinoid, the spatangoid Bolbaster argentinensis sp. nov., is described. At least 19 molluscan genera are recognized; 14 of these, together with seven species, are identified for the first time from Danian exposures of La Pampa Province. An equivocal record of Pyropsis tumida Wilckens, 1905 may extend the range of this tudiclid gastropod from the latest Cretaceous into the Danian. The Cerros Bayos exposures substantially increase our knowledge of diversity trends and biotic recovery immediately following the Cretaceous - Paleogene boundary event, and provide clues to the composition of the little-studied earliest Paleogene faunas in southern Patagonia.Fil: del Río, Claudia Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; ArgentinaFil: Martínez, Sergio A.. Instituto de Geología y Paleontología. Facultad de Ciencias. Montevideo; UruguayFil: Stilwell, Jeffrey D.. School of Geosciences, Monash University; AustraliaFil: Concheyro, Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaTaylor & Francis Ltd2007-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/92757del Río, Claudia Julia; Martínez, Sergio A.; Stilwell, Jeffrey D.; Concheyro, Graciela; Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina; Taylor & Francis Ltd; Alcheringa; 31; 3; 9-2007; 241-2690311-5518CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/03115510701484713info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/03115510701484713info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:23:31Zoai:ri.conicet.gov.ar:11336/92757instacron: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:34982025-10-15 14:23:31.808CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina
title Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina
spellingShingle Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina
del Río, Claudia Julia
ARGENTINA
BIOSTRATIGRAPHY
DANIAN
ECHINOIDS
JAGÜEL FORMATION
LA PAMPA PROVINCE
MOLLUSCS
NANNOFOSSILS
PALAEONTOLOGY
ROCA FORMATION
title_short Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina
title_full Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina
title_fullStr Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina
title_full_unstemmed Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina
title_sort Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina
dc.creator.none.fl_str_mv del Río, Claudia Julia
Martínez, Sergio A.
Stilwell, Jeffrey D.
Concheyro, Graciela
author del Río, Claudia Julia
author_facet del Río, Claudia Julia
Martínez, Sergio A.
Stilwell, Jeffrey D.
Concheyro, Graciela
author_role author
author2 Martínez, Sergio A.
Stilwell, Jeffrey D.
Concheyro, Graciela
author2_role author
author
author
dc.subject.none.fl_str_mv ARGENTINA
BIOSTRATIGRAPHY
DANIAN
ECHINOIDS
JAGÜEL FORMATION
LA PAMPA PROVINCE
MOLLUSCS
NANNOFOSSILS
PALAEONTOLOGY
ROCA FORMATION
topic ARGENTINA
BIOSTRATIGRAPHY
DANIAN
ECHINOIDS
JAGÜEL FORMATION
LA PAMPA PROVINCE
MOLLUSCS
NANNOFOSSILS
PALAEONTOLOGY
ROCA FORMATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv New mollusc and echinoid faunas are recorded from exposures of the Roca Formation at Cerros Bayos (La Pampa Province) and assigned to the Maastrichtian - Danian (CC26 - NP3 Zones of Martini 1971) on the basis of the associated nannofossil assemblages. The macroinvertebrate assemblages show increased diversity and abundance of molluscs from Zones NP1 to NP3. One new Danian echinoid, the spatangoid Bolbaster argentinensis sp. nov., is described. At least 19 molluscan genera are recognized; 14 of these, together with seven species, are identified for the first time from Danian exposures of La Pampa Province. An equivocal record of Pyropsis tumida Wilckens, 1905 may extend the range of this tudiclid gastropod from the latest Cretaceous into the Danian. The Cerros Bayos exposures substantially increase our knowledge of diversity trends and biotic recovery immediately following the Cretaceous - Paleogene boundary event, and provide clues to the composition of the little-studied earliest Paleogene faunas in southern Patagonia.
Fil: del Río, Claudia Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
Fil: Martínez, Sergio A.. Instituto de Geología y Paleontología. Facultad de Ciencias. Montevideo; Uruguay
Fil: Stilwell, Jeffrey D.. School of Geosciences, Monash University; Australia
Fil: Concheyro, Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
description New mollusc and echinoid faunas are recorded from exposures of the Roca Formation at Cerros Bayos (La Pampa Province) and assigned to the Maastrichtian - Danian (CC26 - NP3 Zones of Martini 1971) on the basis of the associated nannofossil assemblages. The macroinvertebrate assemblages show increased diversity and abundance of molluscs from Zones NP1 to NP3. One new Danian echinoid, the spatangoid Bolbaster argentinensis sp. nov., is described. At least 19 molluscan genera are recognized; 14 of these, together with seven species, are identified for the first time from Danian exposures of La Pampa Province. An equivocal record of Pyropsis tumida Wilckens, 1905 may extend the range of this tudiclid gastropod from the latest Cretaceous into the Danian. The Cerros Bayos exposures substantially increase our knowledge of diversity trends and biotic recovery immediately following the Cretaceous - Paleogene boundary event, and provide clues to the composition of the little-studied earliest Paleogene faunas in southern Patagonia.
publishDate 2007
dc.date.none.fl_str_mv 2007-09
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/11336/92757
del Río, Claudia Julia; Martínez, Sergio A.; Stilwell, Jeffrey D.; Concheyro, Graciela; Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina; Taylor & Francis Ltd; Alcheringa; 31; 3; 9-2007; 241-269
0311-5518
CONICET Digital
CONICET
url http://hdl.handle.net/11336/92757
identifier_str_mv del Río, Claudia Julia; Martínez, Sergio A.; Stilwell, Jeffrey D.; Concheyro, Graciela; Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina; Taylor & Francis Ltd; Alcheringa; 31; 3; 9-2007; 241-269
0311-5518
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/03115510701484713
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/03115510701484713
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 Taylor & Francis Ltd
publisher.none.fl_str_mv Taylor & Francis 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
_version_ 1846082646440935424
score 13.22299

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