The first record of fossil penguins from East Antarctica
Abstract This paper presents the first fossil penguin from East Antarctica, and the only one known south of the Antarctic Circle. It is represented by two well-preserved elements of the wing skeleton, humerus and radius, obviously assignable to the extant genus Spheniscus . They were found in the gl...
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Cambridge University Press (CUP)
2012
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Online Access: | http://dx.doi.org/10.1017/s0954102012000909 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102012000909 |
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crcambridgeupr:10.1017/s0954102012000909 2024-09-15T17:46:47+00:00 The first record of fossil penguins from East Antarctica Jadwiszczak, Piotr Krajewski, Krzysztof P. Pushina, Zinaida Tatur, Andrzej Zieliński, Grzegorz 2012 http://dx.doi.org/10.1017/s0954102012000909 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102012000909 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 25, issue 3, page 397-408 ISSN 0954-1020 1365-2079 journal-article 2012 crcambridgeupr https://doi.org/10.1017/s0954102012000909 2024-09-04T04:04:42Z Abstract This paper presents the first fossil penguin from East Antarctica, and the only one known south of the Antarctic Circle. It is represented by two well-preserved elements of the wing skeleton, humerus and radius, obviously assignable to the extant genus Spheniscus . They were found in the glaciomarine succession of the Fisher Bench Formation (Fisher Massif, Prince Charles Mountains, Mac. Robertson Land), which was dated using Strontium Isotope Stratigraphy to be Late Miocene in age (10.2 Ma). They are only slightly younger than the oldest remains undoubtedly attributable to this taxon. The X-ray diffraction and Fourier Transform Infrared Spectroscopy indicate diagenetic alteration of the original bone bioapatite under dominantly marine conditions. The Late Miocene was a period of ice margin retreat and marine incursion into the Lambert embayment that followed Middle Miocene cooling of the Antarctic climate. The fossils strongly suggest that variable climatic and environmental conditions in East Antarctica may have been an important factor in the evolution of penguins there during the Neogene. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica East Antarctica Mac Robertson Land Mac. Robertson Land Prince Charles Mountains Cambridge University Press Antarctic Science 25 3 397 408 |
institution |
Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract This paper presents the first fossil penguin from East Antarctica, and the only one known south of the Antarctic Circle. It is represented by two well-preserved elements of the wing skeleton, humerus and radius, obviously assignable to the extant genus Spheniscus . They were found in the glaciomarine succession of the Fisher Bench Formation (Fisher Massif, Prince Charles Mountains, Mac. Robertson Land), which was dated using Strontium Isotope Stratigraphy to be Late Miocene in age (10.2 Ma). They are only slightly younger than the oldest remains undoubtedly attributable to this taxon. The X-ray diffraction and Fourier Transform Infrared Spectroscopy indicate diagenetic alteration of the original bone bioapatite under dominantly marine conditions. The Late Miocene was a period of ice margin retreat and marine incursion into the Lambert embayment that followed Middle Miocene cooling of the Antarctic climate. The fossils strongly suggest that variable climatic and environmental conditions in East Antarctica may have been an important factor in the evolution of penguins there during the Neogene. |
format |
Article in Journal/Newspaper |
author |
Jadwiszczak, Piotr Krajewski, Krzysztof P. Pushina, Zinaida Tatur, Andrzej Zieliński, Grzegorz |
spellingShingle |
Jadwiszczak, Piotr Krajewski, Krzysztof P. Pushina, Zinaida Tatur, Andrzej Zieliński, Grzegorz The first record of fossil penguins from East Antarctica |
author_facet |
Jadwiszczak, Piotr Krajewski, Krzysztof P. Pushina, Zinaida Tatur, Andrzej Zieliński, Grzegorz |
author_sort |
Jadwiszczak, Piotr |
title |
The first record of fossil penguins from East Antarctica |
title_short |
The first record of fossil penguins from East Antarctica |
title_full |
The first record of fossil penguins from East Antarctica |
title_fullStr |
The first record of fossil penguins from East Antarctica |
title_full_unstemmed |
The first record of fossil penguins from East Antarctica |
title_sort |
first record of fossil penguins from east antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1017/s0954102012000909 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102012000909 |
genre |
Antarc* Antarctic Antarctic Science Antarctica East Antarctica Mac Robertson Land Mac. Robertson Land Prince Charles Mountains |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica East Antarctica Mac Robertson Land Mac. Robertson Land Prince Charles Mountains |
op_source |
Antarctic Science volume 25, issue 3, page 397-408 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102012000909 |
container_title |
Antarctic Science |
container_volume |
25 |
container_issue |
3 |
container_start_page |
397 |
op_container_end_page |
408 |
_version_ |
1810495151468969984 |