Conifer Fossil Woods from the Sobral Formation (Lower Paleocene, Western Antarctica)
Conifer fossil woods represent 54% of an assemblage of 116 specimens collected from sediments of the Sobral Formation in Seymour (Marambio) Island, Western Antarctica. These woods are anatomically described in detail and assigned to seven fossil-species of the following fossil-genera: Agathoxylon (A...
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ftunibueairesbd:paper:paper_00027014_v55_n1_p91_Mirabelli 2023-05-15T13:42:26+02:00 Conifer Fossil Woods from the Sobral Formation (Lower Paleocene, Western Antarctica) 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v55_n1_p91_Mirabelli https://hdl.handle.net/20.500.12110/paper_00027014_v55_n1_p91_Mirabelli unknown https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v55_n1_p91_Mirabelli http://hdl.handle.net/20.500.12110/paper_00027014_v55_n1_p91_Mirabelli Antarctica Araucariaceae Podocarpaceae Seymour (Marambio) Island anatomy biostratigraphy coniferous tree fossil assemblage fossil record Paleocene palynology wood Seymour Island West Antarctica Agathoxylon Coniferophyta Dicotyledoneae Podocarpoxylon 2018 ftunibueairesbd https://doi.org/20.500.12110/paper_00027014_v55_n1_p91_Mirabelli 2023-02-16T02:05:28Z Conifer fossil woods represent 54% of an assemblage of 116 specimens collected from sediments of the Sobral Formation in Seymour (Marambio) Island, Western Antarctica. These woods are anatomically described in detail and assigned to seven fossil-species of the following fossil-genera: Agathoxylon (Araucariaceae), Podocarpoxylon, Phyllocladoxylon, Protophyllocladoxylon (Podocarpaceae), and Cupressinoxylon (Podocarpaceae/Cupressaceae). The conifer wood assemblage reveals that the most common woods are those of Agathoxylon, therefore indicating a relative abundance of the Araucariaceae in the Antarctic Paleocene forests. This abundance of the Araucariaceae woods is locally continued in the overlying Cross Valley Formation (Paleocene). Podocarpaceae woods are found in almost similar proportions to those of the Araucariaceae. Almost the other half of the fossil woods are dicotyledon woods. The proportions of the identified fossil wood taxa are consistent with those of the palynological studies of the same stratigraphic unit. © 2018 Asociacion Paleontologica Argentina. All rights reserved. Other/Unknown Material Antarc* Antarctic Antarctica Seymour Island West Antarctica Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) Antarctic Argentina Cross Valley ENVELOPE(-56.683,-56.683,-64.258,-64.258) Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) Sobral ENVELOPE(-40.650,-40.650,-81.083,-81.083) The Antarctic West Antarctica |
institution |
Open Polar |
collection |
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
op_collection_id |
ftunibueairesbd |
language |
unknown |
topic |
Antarctica Araucariaceae Podocarpaceae Seymour (Marambio) Island anatomy biostratigraphy coniferous tree fossil assemblage fossil record Paleocene palynology wood Seymour Island West Antarctica Agathoxylon Coniferophyta Dicotyledoneae Podocarpoxylon |
spellingShingle |
Antarctica Araucariaceae Podocarpaceae Seymour (Marambio) Island anatomy biostratigraphy coniferous tree fossil assemblage fossil record Paleocene palynology wood Seymour Island West Antarctica Agathoxylon Coniferophyta Dicotyledoneae Podocarpoxylon Conifer Fossil Woods from the Sobral Formation (Lower Paleocene, Western Antarctica) |
topic_facet |
Antarctica Araucariaceae Podocarpaceae Seymour (Marambio) Island anatomy biostratigraphy coniferous tree fossil assemblage fossil record Paleocene palynology wood Seymour Island West Antarctica Agathoxylon Coniferophyta Dicotyledoneae Podocarpoxylon |
description |
Conifer fossil woods represent 54% of an assemblage of 116 specimens collected from sediments of the Sobral Formation in Seymour (Marambio) Island, Western Antarctica. These woods are anatomically described in detail and assigned to seven fossil-species of the following fossil-genera: Agathoxylon (Araucariaceae), Podocarpoxylon, Phyllocladoxylon, Protophyllocladoxylon (Podocarpaceae), and Cupressinoxylon (Podocarpaceae/Cupressaceae). The conifer wood assemblage reveals that the most common woods are those of Agathoxylon, therefore indicating a relative abundance of the Araucariaceae in the Antarctic Paleocene forests. This abundance of the Araucariaceae woods is locally continued in the overlying Cross Valley Formation (Paleocene). Podocarpaceae woods are found in almost similar proportions to those of the Araucariaceae. Almost the other half of the fossil woods are dicotyledon woods. The proportions of the identified fossil wood taxa are consistent with those of the palynological studies of the same stratigraphic unit. © 2018 Asociacion Paleontologica Argentina. All rights reserved. |
title |
Conifer Fossil Woods from the Sobral Formation (Lower Paleocene, Western Antarctica) |
title_short |
Conifer Fossil Woods from the Sobral Formation (Lower Paleocene, Western Antarctica) |
title_full |
Conifer Fossil Woods from the Sobral Formation (Lower Paleocene, Western Antarctica) |
title_fullStr |
Conifer Fossil Woods from the Sobral Formation (Lower Paleocene, Western Antarctica) |
title_full_unstemmed |
Conifer Fossil Woods from the Sobral Formation (Lower Paleocene, Western Antarctica) |
title_sort |
conifer fossil woods from the sobral formation (lower paleocene, western antarctica) |
publishDate |
2018 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v55_n1_p91_Mirabelli https://hdl.handle.net/20.500.12110/paper_00027014_v55_n1_p91_Mirabelli |
long_lat |
ENVELOPE(-56.683,-56.683,-64.258,-64.258) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-40.650,-40.650,-81.083,-81.083) |
geographic |
Antarctic Argentina Cross Valley Marambio Seymour Seymour Island Sobral The Antarctic West Antarctica |
geographic_facet |
Antarctic Argentina Cross Valley Marambio Seymour Seymour Island Sobral The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctica Seymour Island West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Seymour Island West Antarctica |
op_relation |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v55_n1_p91_Mirabelli http://hdl.handle.net/20.500.12110/paper_00027014_v55_n1_p91_Mirabelli |
op_doi |
https://doi.org/20.500.12110/paper_00027014_v55_n1_p91_Mirabelli |
_version_ |
1766167887101296640 |