The fossil record of Antarctic land mammals: commented review and hypotheses for future research
The fossil record of terrestrial mammals in Antarctica is temporally and geographically constrained to the Eocene outcrops of La Meseta and Submeseta formations in Seymour (Marambio) Island in West Antarctica. The faunal assemblage indicate a clear South American imprint since all the groups have a...
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ftconicet:oai:ri.conicet.gov.ar:11336/154407 2023-10-09T21:44:11+02:00 The fossil record of Antarctic land mammals: commented review and hypotheses for future research Gelfo, Javier Nicolás Goin, Francisco Javier Bauzá, Nicolás Reguero, Marcelo Alfredo application/pdf http://hdl.handle.net/11336/154407 eng eng Advances in Polar Sciences info:eu-repo/semantics/altIdentifier/doi/10.13679/j.advps.2019.0021 http://hdl.handle.net/11336/154407 Gelfo, Javier Nicolás; Goin, Francisco Javier; Bauzá, Nicolás; Reguero, Marcelo Alfredo; The fossil record of Antarctic land mammals: commented review and hypotheses for future research; Advances in Polar Sciences; Advances in Polar Science; 30; 3; 10-2019; 274-292 1674-9928 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ANTARCTICA EOCENE LA MESETA FM MAMMALS 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.2019.0021 2023-09-24T18:25:51Z The fossil record of terrestrial mammals in Antarctica is temporally and geographically constrained to the Eocene outcrops of La Meseta and Submeseta formations in Seymour (Marambio) Island in West Antarctica. The faunal assemblage indicate a clear South American imprint since all the groups have a close phylogenetic relationship, with Cretaceous and Paleogene mammals from Patagonia. Despite the presence of several mammalian taxonomic groups: Dryolestida, Gondwanatheria, Eutheria and Metatheria; the presence of other major mammalian taxa should be expected and will probably be confirmed by new findings. Placental mammals with an inferred body mass between 10 to 400 kg size, are represented by xenarthrans, and two groups of the so called South American native ungulates: Astrapotheria and Litopterna. The Metatheria are the smaller (less than 1 kg) and most abundant components of the fauna. Marsupials are represented by derorhynchid ameridelphians; several microbiotherian australidelphians, a ?microbiotheriid and a woodburnodontid; and prepidolopid and polydolopid polydolopimorphians. Plus, there are remains of several mammalian teeth of indeterminate phylogenetic affinities. The present knowledge of the Southern Hemisphere mammalian evolution and paleogeographic has changed through time, indicate that Antarctica played a major role for land mammals, at least since the Jurassic. The actual representation of Paleogene terrestrial mammals in Antarctica is clearly biased, as all the evidence suggests that australosphenidan mammals should be present in Antarctica since the Jurassic. Fil: Gelfo, Javier Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina Fil: Goin, Francisco Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y ... Article in Journal/Newspaper Advances in Polar Science Antarc* Antarctic Antarctica Polar Science Polar Science West Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Argentina Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) Patagonia Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) West Antarctica |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ANTARCTICA EOCENE LA MESETA FM MAMMALS https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
ANTARCTICA EOCENE LA MESETA FM MAMMALS https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Gelfo, Javier Nicolás Goin, Francisco Javier Bauzá, Nicolás Reguero, Marcelo Alfredo The fossil record of Antarctic land mammals: commented review and hypotheses for future research |
topic_facet |
ANTARCTICA EOCENE LA MESETA FM MAMMALS https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
The fossil record of terrestrial mammals in Antarctica is temporally and geographically constrained to the Eocene outcrops of La Meseta and Submeseta formations in Seymour (Marambio) Island in West Antarctica. The faunal assemblage indicate a clear South American imprint since all the groups have a close phylogenetic relationship, with Cretaceous and Paleogene mammals from Patagonia. Despite the presence of several mammalian taxonomic groups: Dryolestida, Gondwanatheria, Eutheria and Metatheria; the presence of other major mammalian taxa should be expected and will probably be confirmed by new findings. Placental mammals with an inferred body mass between 10 to 400 kg size, are represented by xenarthrans, and two groups of the so called South American native ungulates: Astrapotheria and Litopterna. The Metatheria are the smaller (less than 1 kg) and most abundant components of the fauna. Marsupials are represented by derorhynchid ameridelphians; several microbiotherian australidelphians, a ?microbiotheriid and a woodburnodontid; and prepidolopid and polydolopid polydolopimorphians. Plus, there are remains of several mammalian teeth of indeterminate phylogenetic affinities. The present knowledge of the Southern Hemisphere mammalian evolution and paleogeographic has changed through time, indicate that Antarctica played a major role for land mammals, at least since the Jurassic. The actual representation of Paleogene terrestrial mammals in Antarctica is clearly biased, as all the evidence suggests that australosphenidan mammals should be present in Antarctica since the Jurassic. Fil: Gelfo, Javier Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina Fil: Goin, Francisco Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y ... |
format |
Article in Journal/Newspaper |
author |
Gelfo, Javier Nicolás Goin, Francisco Javier Bauzá, Nicolás Reguero, Marcelo Alfredo |
author_facet |
Gelfo, Javier Nicolás Goin, Francisco Javier Bauzá, Nicolás Reguero, Marcelo Alfredo |
author_sort |
Gelfo, Javier Nicolás |
title |
The fossil record of Antarctic land mammals: commented review and hypotheses for future research |
title_short |
The fossil record of Antarctic land mammals: commented review and hypotheses for future research |
title_full |
The fossil record of Antarctic land mammals: commented review and hypotheses for future research |
title_fullStr |
The fossil record of Antarctic land mammals: commented review and hypotheses for future research |
title_full_unstemmed |
The fossil record of Antarctic land mammals: commented review and hypotheses for future research |
title_sort |
fossil record of antarctic land mammals: commented review and hypotheses for future research |
publisher |
Advances in Polar Sciences |
url |
http://hdl.handle.net/11336/154407 |
long_lat |
ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-56.767,-56.767,-64.283,-64.283) |
geographic |
Antarctic Argentina Marambio Patagonia Seymour West Antarctica |
geographic_facet |
Antarctic Argentina Marambio Patagonia Seymour West Antarctica |
genre |
Advances in Polar Science Antarc* Antarctic Antarctica Polar Science Polar Science West Antarctica |
genre_facet |
Advances in Polar Science Antarc* Antarctic Antarctica Polar Science Polar Science West Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.13679/j.advps.2019.0021 http://hdl.handle.net/11336/154407 Gelfo, Javier Nicolás; Goin, Francisco Javier; Bauzá, Nicolás; Reguero, Marcelo Alfredo; The fossil record of Antarctic land mammals: commented review and hypotheses for future research; Advances in Polar Sciences; Advances in Polar Science; 30; 3; 10-2019; 274-292 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.2019.0021 |
_version_ |
1779320183462035456 |