Mesozoic and Cenozoic microbiotas from eastern Antarctic Peninsula: adaptation to a changing palaeoenvironment
A compiled selected literature on some groups of microfossils of the Mesozoic and Cenozoic of the James Ross Basin, eastern Antarctic Peninsula, is presented here, in order to show how the microbiota has been modified over time, triggered by environmental changes. The analyzed microfossils consist o...
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ftconicet:oai:ri.conicet.gov.ar:11336/97411 2023-10-09T21:44:09+02:00 Mesozoic and Cenozoic microbiotas from eastern Antarctic Peninsula: adaptation to a changing palaeoenvironment Rodriguez Amenabar, Cecilia Carames, Andrea Alejandra Adamonis, Susana Doldan, Ana Verónica Maceiras, Gabriel Concheyro, Graciela application/pdf http://hdl.handle.net/11336/97411 eng eng Advances in Polar Science info:eu-repo/semantics/altIdentifier/doi/10.13679/j.advps.2019.0017 info:eu-repo/semantics/altIdentifier/url/http://kns.cnki.net/kcms/detail/detail.aspx?doi=10.13679/j.advps.2019.0017 http://hdl.handle.net/11336/97411 Rodriguez Amenabar, Cecilia; Carames, Andrea Alejandra; Adamonis, Susana; Doldan, Ana Verónica; Maceiras, Gabriel; et al.; Mesozoic and Cenozoic microbiotas from eastern Antarctic Peninsula: adaptation to a changing palaeoenvironment; Advances in Polar Science; Advances in Polar Science; 30; 3; 9-2019; 165-185 1674-9928 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ POLLEN-SPORES DINOFLAGELLATE CYSTS FORAMINIFERA BRYOZOANS PALAEOENVIRONMENT MESOZOIC-CENOZOIC JAMES ROSS BASIN ANTARCTIC PENINSULA https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.13679/j.advps.2019.0017 2023-09-24T18:43:05Z A compiled selected literature on some groups of microfossils of the Mesozoic and Cenozoic of the James Ross Basin, eastern Antarctic Peninsula, is presented here, in order to show how the microbiota has been modified over time, triggered by environmental changes. The analyzed microfossils consist of palynomorphs (mostly pollen grains, spores, and dinoflagellate cysts), foraminifers and bryozoans. Dinoflagellate cysts and pollen-spores have been recorded in Jurassic to Pleistocene sedimentary outcrops. Dinoflagellate cysts proved to be good indicators for productivity and/or nutrient availability, surfacewater temperature and chemistry, the position of ancient shorelines and paleoceanographic trends. Pollen and spores allowed reconstruction of floral community and thus characterization of the climate that prevailed on the continent. Foraminifera,recovered from the Lower Cretaceous to the Pleistocene sedimentary rocks, provided information about the bathymetry, showing different marine settings (e.g., coastal, inner neritic, outer neritic, upper bathyal) in different localities. The bryozoan record isrestricted to the Cenozoic. Their colonial growth-forms reflect several environmental conditions such as shallow waters with a low rate of sedimentation, hard substrate and moderate or strong current action for the analyzed localities. The study of the Antarcticecosystems based on the fossil microbiota and their response to the climate and the continental configuration changes, allowed understanding of the composition and dynamics of the polar environments, which have an important role in the Earth climate. Fil: Rodriguez Amenabar, Cecilia. 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. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección ... Article in Journal/Newspaper Advances in Polar Science Antarc* Antarctic Antarctic Peninsula Polar Science Polar Science CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Antarctic Peninsula Argentina Rodriguez ENVELOPE(-56.720,-56.720,-63.529,-63.529) Pablo ENVELOPE(-63.717,-63.717,-64.283,-64.283) |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
POLLEN-SPORES DINOFLAGELLATE CYSTS FORAMINIFERA BRYOZOANS PALAEOENVIRONMENT MESOZOIC-CENOZOIC JAMES ROSS BASIN ANTARCTIC PENINSULA https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
POLLEN-SPORES DINOFLAGELLATE CYSTS FORAMINIFERA BRYOZOANS PALAEOENVIRONMENT MESOZOIC-CENOZOIC JAMES ROSS BASIN ANTARCTIC PENINSULA https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Rodriguez Amenabar, Cecilia Carames, Andrea Alejandra Adamonis, Susana Doldan, Ana Verónica Maceiras, Gabriel Concheyro, Graciela Mesozoic and Cenozoic microbiotas from eastern Antarctic Peninsula: adaptation to a changing palaeoenvironment |
topic_facet |
POLLEN-SPORES DINOFLAGELLATE CYSTS FORAMINIFERA BRYOZOANS PALAEOENVIRONMENT MESOZOIC-CENOZOIC JAMES ROSS BASIN ANTARCTIC PENINSULA https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
A compiled selected literature on some groups of microfossils of the Mesozoic and Cenozoic of the James Ross Basin, eastern Antarctic Peninsula, is presented here, in order to show how the microbiota has been modified over time, triggered by environmental changes. The analyzed microfossils consist of palynomorphs (mostly pollen grains, spores, and dinoflagellate cysts), foraminifers and bryozoans. Dinoflagellate cysts and pollen-spores have been recorded in Jurassic to Pleistocene sedimentary outcrops. Dinoflagellate cysts proved to be good indicators for productivity and/or nutrient availability, surfacewater temperature and chemistry, the position of ancient shorelines and paleoceanographic trends. Pollen and spores allowed reconstruction of floral community and thus characterization of the climate that prevailed on the continent. Foraminifera,recovered from the Lower Cretaceous to the Pleistocene sedimentary rocks, provided information about the bathymetry, showing different marine settings (e.g., coastal, inner neritic, outer neritic, upper bathyal) in different localities. The bryozoan record isrestricted to the Cenozoic. Their colonial growth-forms reflect several environmental conditions such as shallow waters with a low rate of sedimentation, hard substrate and moderate or strong current action for the analyzed localities. The study of the Antarcticecosystems based on the fossil microbiota and their response to the climate and the continental configuration changes, allowed understanding of the composition and dynamics of the polar environments, which have an important role in the Earth climate. Fil: Rodriguez Amenabar, Cecilia. 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. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección ... |
format |
Article in Journal/Newspaper |
author |
Rodriguez Amenabar, Cecilia Carames, Andrea Alejandra Adamonis, Susana Doldan, Ana Verónica Maceiras, Gabriel Concheyro, Graciela |
author_facet |
Rodriguez Amenabar, Cecilia Carames, Andrea Alejandra Adamonis, Susana Doldan, Ana Verónica Maceiras, Gabriel Concheyro, Graciela |
author_sort |
Rodriguez Amenabar, Cecilia |
title |
Mesozoic and Cenozoic microbiotas from eastern Antarctic Peninsula: adaptation to a changing palaeoenvironment |
title_short |
Mesozoic and Cenozoic microbiotas from eastern Antarctic Peninsula: adaptation to a changing palaeoenvironment |
title_full |
Mesozoic and Cenozoic microbiotas from eastern Antarctic Peninsula: adaptation to a changing palaeoenvironment |
title_fullStr |
Mesozoic and Cenozoic microbiotas from eastern Antarctic Peninsula: adaptation to a changing palaeoenvironment |
title_full_unstemmed |
Mesozoic and Cenozoic microbiotas from eastern Antarctic Peninsula: adaptation to a changing palaeoenvironment |
title_sort |
mesozoic and cenozoic microbiotas from eastern antarctic peninsula: adaptation to a changing palaeoenvironment |
publisher |
Advances in Polar Science |
url |
http://hdl.handle.net/11336/97411 |
long_lat |
ENVELOPE(-56.720,-56.720,-63.529,-63.529) ENVELOPE(-63.717,-63.717,-64.283,-64.283) |
geographic |
Antarctic Antarctic Peninsula Argentina Rodriguez Pablo |
geographic_facet |
Antarctic Antarctic Peninsula Argentina Rodriguez Pablo |
genre |
Advances in Polar Science Antarc* Antarctic Antarctic Peninsula Polar Science Polar Science |
genre_facet |
Advances in Polar Science Antarc* Antarctic Antarctic Peninsula Polar Science Polar Science |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.13679/j.advps.2019.0017 info:eu-repo/semantics/altIdentifier/url/http://kns.cnki.net/kcms/detail/detail.aspx?doi=10.13679/j.advps.2019.0017 http://hdl.handle.net/11336/97411 Rodriguez Amenabar, Cecilia; Carames, Andrea Alejandra; Adamonis, Susana; Doldan, Ana Verónica; Maceiras, Gabriel; et al.; Mesozoic and Cenozoic microbiotas from eastern Antarctic Peninsula: adaptation to a changing palaeoenvironment; Advances in Polar Science; Advances in Polar Science; 30; 3; 9-2019; 165-185 1674-9928 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.13679/j.advps.2019.0017 |
_version_ |
1779317788466216960 |