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dc.contributor.author
del Río, Claudia Julia
dc.contributor.author
Martínez, Sergio A.
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Stilwell, Jeffrey D.
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Concheyro, Graciela
dc.date.available
2019-12-23T16:54:43Z
dc.date.issued
2007-09
dc.identifier.citation
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
dc.identifier.issn
0311-5518
dc.identifier.uri
http://hdl.handle.net/11336/92757
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis Ltd
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ARGENTINA
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BIOSTRATIGRAPHY
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DANIAN
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ECHINOIDS
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JAGÜEL FORMATION
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LA PAMPA PROVINCE
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MOLLUSCS
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NANNOFOSSILS
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PALAEONTOLOGY
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ROCA FORMATION
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Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Palaeontology of the Cerros Bayos section, Roca Formation (Danian), La Pampa Province, Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-11-08T15:10:41Z
dc.journal.volume
31
dc.journal.number
3
dc.journal.pagination
241-269
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
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
dc.description.fil
Fil: Martínez, Sergio A.. Instituto de Geología y Paleontología. Facultad de Ciencias. Montevideo; Uruguay
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Fil: Stilwell, Jeffrey D.. School of Geosciences, Monash University; Australia
dc.description.fil
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
dc.journal.title
Alcheringa
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/03115510701484713
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/03115510701484713
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