Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern Argentina

Autores
Noetinger, Maria Sol
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Devonian deposits in northwestern Argentina were historically studied with stratigraphical purposes, since these layers conform the source rocks of the producing basins of the region. A fairly well preserved palynomorph assemblage, from the Tonono Formation, provides an opportunity to perform the first quantitative analysis to study the evolution of diversity in the succession. Two associations are here defined by both, stratigraphic distribution of species and cluster analysis, ranging from the lower Eifelian to the lower Givetian. Rarefaction analysis reveals the existence of a relatively rich miospore population. Species richness increases while there is a drop in diversity and evenness towards the top of the column. The increment of the marine components towards the latter section indicates shifts in the shoreline. The influx of warmer water into higher latitudes, as highlighted by the arrival of the brachiopod Tropidoleptus, could have favored the inception of new spore species in the settled community. These results add to evidence that some groups build up the number of species in disturbed settings, and evenness is reduced with each new species introduced.
Fil: Noetinger, Maria Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Materia
Palynostratrigraphy
Diversity Trends
Tonono Formation
Middle Devonian
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/19079
Acceder
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spelling Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern ArgentinaNoetinger, Maria SolPalynostratrigraphyDiversity TrendsTonono FormationMiddle Devonianhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Devonian deposits in northwestern Argentina were historically studied with stratigraphical purposes, since these layers conform the source rocks of the producing basins of the region. A fairly well preserved palynomorph assemblage, from the Tonono Formation, provides an opportunity to perform the first quantitative analysis to study the evolution of diversity in the succession. Two associations are here defined by both, stratigraphic distribution of species and cluster analysis, ranging from the lower Eifelian to the lower Givetian. Rarefaction analysis reveals the existence of a relatively rich miospore population. Species richness increases while there is a drop in diversity and evenness towards the top of the column. The increment of the marine components towards the latter section indicates shifts in the shoreline. The influx of warmer water into higher latitudes, as highlighted by the arrival of the brachiopod Tropidoleptus, could have favored the inception of new spore species in the settled community. These results add to evidence that some groups build up the number of species in disturbed settings, and evenness is reduced with each new species introduced.Fil: Noetinger, Maria Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaElsevier Science2015-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/19079Noetinger, Maria Sol; Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern Argentina; Elsevier Science; Palaeogeography, Palaeoclimatology, Palaeoecology; 417; 1-2015; 151-1630031-0182CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2014.10.027info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0031018214005380info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:10:52Zoai:ri.conicet.gov.ar:11336/19079instacron: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 15:10:53.196CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern Argentina
title Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern Argentina
spellingShingle Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern Argentina
Noetinger, Maria Sol
Palynostratrigraphy
Diversity Trends
Tonono Formation
Middle Devonian
title_short Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern Argentina
title_full Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern Argentina
title_fullStr Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern Argentina
title_full_unstemmed Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern Argentina
title_sort Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern Argentina
dc.creator.none.fl_str_mv Noetinger, Maria Sol
author Noetinger, Maria Sol
author_facet Noetinger, Maria Sol
author_role author
dc.subject.none.fl_str_mv Palynostratrigraphy
Diversity Trends
Tonono Formation
Middle Devonian
topic Palynostratrigraphy
Diversity Trends
Tonono Formation
Middle Devonian
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Devonian deposits in northwestern Argentina were historically studied with stratigraphical purposes, since these layers conform the source rocks of the producing basins of the region. A fairly well preserved palynomorph assemblage, from the Tonono Formation, provides an opportunity to perform the first quantitative analysis to study the evolution of diversity in the succession. Two associations are here defined by both, stratigraphic distribution of species and cluster analysis, ranging from the lower Eifelian to the lower Givetian. Rarefaction analysis reveals the existence of a relatively rich miospore population. Species richness increases while there is a drop in diversity and evenness towards the top of the column. The increment of the marine components towards the latter section indicates shifts in the shoreline. The influx of warmer water into higher latitudes, as highlighted by the arrival of the brachiopod Tropidoleptus, could have favored the inception of new spore species in the settled community. These results add to evidence that some groups build up the number of species in disturbed settings, and evenness is reduced with each new species introduced.
Fil: Noetinger, Maria Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
description Devonian deposits in northwestern Argentina were historically studied with stratigraphical purposes, since these layers conform the source rocks of the producing basins of the region. A fairly well preserved palynomorph assemblage, from the Tonono Formation, provides an opportunity to perform the first quantitative analysis to study the evolution of diversity in the succession. Two associations are here defined by both, stratigraphic distribution of species and cluster analysis, ranging from the lower Eifelian to the lower Givetian. Rarefaction analysis reveals the existence of a relatively rich miospore population. Species richness increases while there is a drop in diversity and evenness towards the top of the column. The increment of the marine components towards the latter section indicates shifts in the shoreline. The influx of warmer water into higher latitudes, as highlighted by the arrival of the brachiopod Tropidoleptus, could have favored the inception of new spore species in the settled community. These results add to evidence that some groups build up the number of species in disturbed settings, and evenness is reduced with each new species introduced.
publishDate 2015
dc.date.none.fl_str_mv 2015-01
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/11336/19079
Noetinger, Maria Sol; Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern Argentina; Elsevier Science; Palaeogeography, Palaeoclimatology, Palaeoecology; 417; 1-2015; 151-163
0031-0182
CONICET Digital
CONICET
url http://hdl.handle.net/11336/19079
identifier_str_mv Noetinger, Maria Sol; Spore diversity trends in the Middle Devonian of the Chaco-Salteño Plain, northwestern Argentina; Elsevier Science; Palaeogeography, Palaeoclimatology, Palaeoecology; 417; 1-2015; 151-163
0031-0182
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2014.10.027
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0031018214005380
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 13.22299

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