Fossil woods from the Cross Valley Formation (Paleocene of Western Antarctica): Araucariaceae-dominated forests
Fossil woods from Paleocene sediments of the Cross Valley Formation (Seymour Island, Antarctic Peninsula) are anatomically studied in detail. We collected 64 samples represented almost exclusively by conifers (95%). Only three samples of not determinable angiosperm fossil wood were found. Preservati...
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ftconicet:oai:ri.conicet.gov.ar:11336/46662 2023-10-09T21:46:13+02:00 Fossil woods from the Cross Valley Formation (Paleocene of Western Antarctica): Araucariaceae-dominated forests Pujana, Roberto Roman Marenssi, Sergio Alfredo Santillana, Sergio N. application/pdf http://hdl.handle.net/11336/46662 eng eng Elsevier Science info:eu-repo/semantics/altIdentifier/doi/10.1016/j.revpalbo.2015.07.010 info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0034666715001372 http://hdl.handle.net/11336/46662 Pujana, Roberto Roman; Marenssi, Sergio Alfredo; Santillana, Sergio N.; Fossil woods from the Cross Valley Formation (Paleocene of Western Antarctica): Araucariaceae-dominated forests; Elsevier Science; Review of Palaeobotany and Palynology; 222; 11-2015; 56-66 0034-6667 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Araucariaceae Wood Anatomy West Antarctica Paleobotany Paleocene 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/10.1016/j.revpalbo.2015.07.010 2023-09-24T19:25:35Z Fossil woods from Paleocene sediments of the Cross Valley Formation (Seymour Island, Antarctic Peninsula) are anatomically studied in detail. We collected 64 samples represented almost exclusively by conifers (95%). Only three samples of not determinable angiosperm fossil wood were found. Preservation of the samples is often poor and 52% of the samples were assigned to a fossil-species. The assemblage is dominated by Agathoxylon (Araucariaceae), particularly Agathoxylon antarcticus. Araucariaceae species are joined by Protophyllocladoxylon, Phyllocladoxylon and Cupressinoxylon. Forests dominated by Araucariaceae are unusual during the Cenozoic. The high dominance of Araucariaceae woods may be a reflection of soil conditions, weather and terrain elevation. Our study supports previous hypothesis that identified differences between the paleofloras in each side of the Antarctic Peninsula during the Paleocene. Fil: Pujana, Roberto Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Marenssi, Sergio Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina Fil: Santillana, Sergio N. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Dirección Nacional del Antártico Instituto Antártico Argentino Seymour Island West Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Antarctic Peninsula Argentina Argentino Cross Valley ENVELOPE(-56.683,-56.683,-64.258,-64.258) Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) The Antarctic West Antarctica Review of Palaeobotany and Palynology 222 56 66 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Araucariaceae Wood Anatomy West Antarctica Paleobotany Paleocene https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Araucariaceae Wood Anatomy West Antarctica Paleobotany Paleocene https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Pujana, Roberto Roman Marenssi, Sergio Alfredo Santillana, Sergio N. Fossil woods from the Cross Valley Formation (Paleocene of Western Antarctica): Araucariaceae-dominated forests |
topic_facet |
Araucariaceae Wood Anatomy West Antarctica Paleobotany Paleocene https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Fossil woods from Paleocene sediments of the Cross Valley Formation (Seymour Island, Antarctic Peninsula) are anatomically studied in detail. We collected 64 samples represented almost exclusively by conifers (95%). Only three samples of not determinable angiosperm fossil wood were found. Preservation of the samples is often poor and 52% of the samples were assigned to a fossil-species. The assemblage is dominated by Agathoxylon (Araucariaceae), particularly Agathoxylon antarcticus. Araucariaceae species are joined by Protophyllocladoxylon, Phyllocladoxylon and Cupressinoxylon. Forests dominated by Araucariaceae are unusual during the Cenozoic. The high dominance of Araucariaceae woods may be a reflection of soil conditions, weather and terrain elevation. Our study supports previous hypothesis that identified differences between the paleofloras in each side of the Antarctic Peninsula during the Paleocene. Fil: Pujana, Roberto Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Marenssi, Sergio Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina Fil: Santillana, Sergio N. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina |
format |
Article in Journal/Newspaper |
author |
Pujana, Roberto Roman Marenssi, Sergio Alfredo Santillana, Sergio N. |
author_facet |
Pujana, Roberto Roman Marenssi, Sergio Alfredo Santillana, Sergio N. |
author_sort |
Pujana, Roberto Roman |
title |
Fossil woods from the Cross Valley Formation (Paleocene of Western Antarctica): Araucariaceae-dominated forests |
title_short |
Fossil woods from the Cross Valley Formation (Paleocene of Western Antarctica): Araucariaceae-dominated forests |
title_full |
Fossil woods from the Cross Valley Formation (Paleocene of Western Antarctica): Araucariaceae-dominated forests |
title_fullStr |
Fossil woods from the Cross Valley Formation (Paleocene of Western Antarctica): Araucariaceae-dominated forests |
title_full_unstemmed |
Fossil woods from the Cross Valley Formation (Paleocene of Western Antarctica): Araucariaceae-dominated forests |
title_sort |
fossil woods from the cross valley formation (paleocene of western antarctica): araucariaceae-dominated forests |
publisher |
Elsevier Science |
url |
http://hdl.handle.net/11336/46662 |
long_lat |
ENVELOPE(-56.683,-56.683,-64.258,-64.258) ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) |
geographic |
Antarctic Antarctic Peninsula Argentina Argentino Cross Valley Seymour Seymour Island The Antarctic West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula Argentina Argentino Cross Valley Seymour Seymour Island The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Dirección Nacional del Antártico Instituto Antártico Argentino Seymour Island West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Dirección Nacional del Antártico Instituto Antártico Argentino Seymour Island West Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.revpalbo.2015.07.010 info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0034666715001372 http://hdl.handle.net/11336/46662 Pujana, Roberto Roman; Marenssi, Sergio Alfredo; Santillana, Sergio N.; Fossil woods from the Cross Valley Formation (Paleocene of Western Antarctica): Araucariaceae-dominated forests; Elsevier Science; Review of Palaeobotany and Palynology; 222; 11-2015; 56-66 0034-6667 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1016/j.revpalbo.2015.07.010 |
container_title |
Review of Palaeobotany and Palynology |
container_volume |
222 |
container_start_page |
56 |
op_container_end_page |
66 |
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1779321871684075520 |