New Avian tracks from the lower to middle Eocene at Fossil Hill, King George Island, Antarctica
Abstract 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 com...
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Online Access: | http://dx.doi.org/10.1017/s0954102012000260 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102012000260 |
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crcambridgeupr:10.1017/s0954102012000260 2024-03-03T08:38:55+00:00 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. 2012 http://dx.doi.org/10.1017/s0954102012000260 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102012000260 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 24, issue 5, page 500-506 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2012 crcambridgeupr https://doi.org/10.1017/s0954102012000260 2024-02-08T08:33:10Z Abstract 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. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica King George Island Cambridge University Press King George Island Fildes ENVELOPE(-58.817,-58.817,-62.217,-62.217) Fildes peninsula ENVELOPE(-58.948,-58.948,-62.182,-62.182) Fossil Hill ENVELOPE(-58.977,-58.977,-62.206,-62.206) Antarctic Science 24 5 500 506 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography 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 |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract 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. |
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 (CUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1017/s0954102012000260 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102012000260 |
long_lat |
ENVELOPE(-58.817,-58.817,-62.217,-62.217) ENVELOPE(-58.948,-58.948,-62.182,-62.182) ENVELOPE(-58.977,-58.977,-62.206,-62.206) |
geographic |
King George Island Fildes Fildes peninsula Fossil Hill |
geographic_facet |
King George Island Fildes Fildes peninsula Fossil Hill |
genre |
Antarc* Antarctic Science Antarctica King George Island |
genre_facet |
Antarc* Antarctic Science Antarctica King George Island |
op_source |
Antarctic Science volume 24, issue 5, page 500-506 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
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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1792507399748190208 |