New Avian tracks from the lower to middle Eocene at Fossil Hill, King George Island, Antarctica
Trace fossils are long known to exist in the Fossil Hill Formation (lower to middle Eocene) at Fildes Peninsula, King George Island, Antarctica. During fieldwork in 2009, abundant new avian tracks were recovered, which are analysed here. Three avian ichnotaxa are distinguished. The most common impre...
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ftconicet:oai:ri.conicet.gov.ar:11336/11096 2023-10-09T21:45:01+02:00 New Avian tracks from the lower to middle Eocene at Fossil Hill, King George Island, Antarctica Mansilla, Héctor G. de Valais, Silvina Stinnesbeck, Wolfgang Varela, Natalia A. Leppe, Marcelo A. application/pdf http://hdl.handle.net/11336/11096 eng eng Cambridge University Press info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/antarctic-science/article/div-classtitlenew-avian-tracks-from-the-lower-to-middle-eocene-at-fossil-hill-king-george-island-antarcticadiv/F40725074B84176E41129B758CBDE33A info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1017/S0954102012000260 http://hdl.handle.net/11336/11096 Mansilla, Héctor G.; de Valais, Silvina; Stinnesbeck, Wolfgang; Varela, Natalia A.; Leppe, Marcelo A.; New Avian tracks from the lower to middle Eocene at Fossil Hill, King George Island, Antarctica; Cambridge University Press; Antarctic Science; 24; 5; 10-2012; 500-506 0954-1020 1365-2079 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Avian Footprints Cenozoic Gondwana Ichnotaxonomy 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/10.1017/S0954102012000260 2023-09-24T20:23:43Z Trace fossils are long known to exist in the Fossil Hill Formation (lower to middle Eocene) at Fildes Peninsula, King George Island, Antarctica. During fieldwork in 2009, abundant new avian tracks were recovered, which are analysed here. Three avian ichnotaxa are distinguished. The most common impressions are tridactyls and tetradactyls with slender digit imprints II–IV and a posterior hallux. They are included in the ichnogenus Gruipeda. In addition tridactyl and tetradactyl footprints with short and thick digit impressions are conferred to Uhangrichnus. The third ichnotaxon is a tridactyl impression with broad and short digits assigned to Avipeda. The latter taxon is here documented for the first time from Antarctica. These avian tracks are preserved in volcaniclastic sediments consisting in reddish-brown layers of mudstone intercalated with coarse sandstone. The sequence represents lacustrine environments which seasonally dried and were episodically refilled. Fil: Mansilla, Héctor G. Instituto Antártico Chileno. Laboratorio de Palaeobiología; Chile Fil: de Valais, Silvina. Universidad Nacional de Rio Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiologia y Geologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Stinnesbeck, Wolfgang. Universität Heidelberg. Institut für Geowissenschaften; Alemania Fil: Varela, Natalia A. Instituto Antártico Chileno. Laboratorio de Palaeobiología; Chile Fil: Leppe, Marcelo A. Instituto Antártico Chileno. Laboratorio de Palaeobiología; Chile Article in Journal/Newspaper Antarc* Antarctic Science Antarctica King George Island CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) King George Island Argentina Fildes ENVELOPE(-58.817,-58.817,-62.217,-62.217) Fildes peninsula ENVELOPE(-58.948,-58.948,-62.182,-62.182) Varela ENVELOPE(-60.583,-60.583,-62.933,-62.933) Fossil Hill ENVELOPE(-58.977,-58.977,-62.206,-62.206) Mansilla ENVELOPE(-67.167,-67.167,-66.383,-66.383) Antarctic Science 24 5 500 506 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Avian Footprints Cenozoic Gondwana Ichnotaxonomy https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Avian Footprints Cenozoic Gondwana Ichnotaxonomy https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Mansilla, Héctor G. de Valais, Silvina Stinnesbeck, Wolfgang Varela, Natalia A. Leppe, Marcelo A. New Avian tracks from the lower to middle Eocene at Fossil Hill, King George Island, Antarctica |
topic_facet |
Avian Footprints Cenozoic Gondwana Ichnotaxonomy https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Trace fossils are long known to exist in the Fossil Hill Formation (lower to middle Eocene) at Fildes Peninsula, King George Island, Antarctica. During fieldwork in 2009, abundant new avian tracks were recovered, which are analysed here. Three avian ichnotaxa are distinguished. The most common impressions are tridactyls and tetradactyls with slender digit imprints II–IV and a posterior hallux. They are included in the ichnogenus Gruipeda. In addition tridactyl and tetradactyl footprints with short and thick digit impressions are conferred to Uhangrichnus. The third ichnotaxon is a tridactyl impression with broad and short digits assigned to Avipeda. The latter taxon is here documented for the first time from Antarctica. These avian tracks are preserved in volcaniclastic sediments consisting in reddish-brown layers of mudstone intercalated with coarse sandstone. The sequence represents lacustrine environments which seasonally dried and were episodically refilled. Fil: Mansilla, Héctor G. Instituto Antártico Chileno. Laboratorio de Palaeobiología; Chile Fil: de Valais, Silvina. Universidad Nacional de Rio Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiologia y Geologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Stinnesbeck, Wolfgang. Universität Heidelberg. Institut für Geowissenschaften; Alemania Fil: Varela, Natalia A. Instituto Antártico Chileno. Laboratorio de Palaeobiología; Chile Fil: Leppe, Marcelo A. Instituto Antártico Chileno. Laboratorio de Palaeobiología; Chile |
format |
Article in Journal/Newspaper |
author |
Mansilla, Héctor G. de Valais, Silvina Stinnesbeck, Wolfgang Varela, Natalia A. Leppe, Marcelo A. |
author_facet |
Mansilla, Héctor G. de Valais, Silvina Stinnesbeck, Wolfgang Varela, Natalia A. Leppe, Marcelo A. |
author_sort |
Mansilla, Héctor G. |
title |
New Avian tracks from the lower to middle Eocene at Fossil Hill, King George Island, Antarctica |
title_short |
New Avian tracks from the lower to middle Eocene at Fossil Hill, King George Island, Antarctica |
title_full |
New Avian tracks from the lower to middle Eocene at Fossil Hill, King George Island, Antarctica |
title_fullStr |
New Avian tracks from the lower to middle Eocene at Fossil Hill, King George Island, Antarctica |
title_full_unstemmed |
New Avian tracks from the lower to middle Eocene at Fossil Hill, King George Island, Antarctica |
title_sort |
new avian tracks from the lower to middle eocene at fossil hill, king george island, antarctica |
publisher |
Cambridge University Press |
url |
http://hdl.handle.net/11336/11096 |
long_lat |
ENVELOPE(-58.817,-58.817,-62.217,-62.217) ENVELOPE(-58.948,-58.948,-62.182,-62.182) ENVELOPE(-60.583,-60.583,-62.933,-62.933) ENVELOPE(-58.977,-58.977,-62.206,-62.206) ENVELOPE(-67.167,-67.167,-66.383,-66.383) |
geographic |
King George Island Argentina Fildes Fildes peninsula Varela Fossil Hill Mansilla |
geographic_facet |
King George Island Argentina Fildes Fildes peninsula Varela Fossil Hill Mansilla |
genre |
Antarc* Antarctic Science Antarctica King George Island |
genre_facet |
Antarc* Antarctic Science Antarctica King George Island |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/antarctic-science/article/div-classtitlenew-avian-tracks-from-the-lower-to-middle-eocene-at-fossil-hill-king-george-island-antarcticadiv/F40725074B84176E41129B758CBDE33A info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1017/S0954102012000260 http://hdl.handle.net/11336/11096 Mansilla, Héctor G.; de Valais, Silvina; Stinnesbeck, Wolfgang; Varela, Natalia A.; Leppe, Marcelo A.; New Avian tracks from the lower to middle Eocene at Fossil Hill, King George Island, Antarctica; Cambridge University Press; Antarctic Science; 24; 5; 10-2012; 500-506 0954-1020 1365-2079 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1017/S0954102012000260 |
container_title |
Antarctic Science |
container_volume |
24 |
container_issue |
5 |
container_start_page |
500 |
op_container_end_page |
506 |
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1779315385982517248 |