Mid-Pliocene warm-period deposits in the High Arctic yield insight into camel evolution
The mid-Pliocene was a global warm period, preceding the onset of Quaternary glaciations. Here we use cosmogenic nuclide dating to show that a fossiliferous terrestrial deposit that includes subfossil trees and the northern-most evidence of Pliocene ice wedge casts in Canada’s High Arctic (Ellesmere...
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ftpubmed:oai:pubmedcentral.nih.gov:3615376 2023-05-15T14:42:09+02:00 Mid-Pliocene warm-period deposits in the High Arctic yield insight into camel evolution Rybczynski, Natalia Gosse, John C. Richard Harington, C. Wogelius, Roy A. Hidy, Alan J. Buckley, Mike 2013-03-05 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3615376 http://www.ncbi.nlm.nih.gov/pubmed/23462993 https://doi.org/10.1038/ncomms2516 en eng Nature Pub. Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3615376 http://www.ncbi.nlm.nih.gov/pubmed/23462993 http://dx.doi.org/10.1038/ncomms2516 Copyright © 2013, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ CC-BY-NC-SA Article Text 2013 ftpubmed https://doi.org/10.1038/ncomms2516 2013-09-04T21:58:23Z The mid-Pliocene was a global warm period, preceding the onset of Quaternary glaciations. Here we use cosmogenic nuclide dating to show that a fossiliferous terrestrial deposit that includes subfossil trees and the northern-most evidence of Pliocene ice wedge casts in Canada’s High Arctic (Ellesmere Island, Nunavut) was deposited during the mid-Pliocene warm period. The age estimates correspond to a general maximum in high latitude mean winter season insolation, consistent with the presence of a rich, boreal-type forest. Moreover, we report that these deposits have yielded the first evidence of a High Arctic camel, identified using collagen fingerprinting of a fragmentary fossil limb bone. Camels originated in North America and dispersed to Eurasia via the Bering Isthmus, an ephemeral land bridge linking Alaska and Russia. The results suggest that the evolutionary history of modern camels can be traced back to a lineage of giant camels that was well established in a forested Arctic. Text Arctic Ellesmere Island Nunavut Alaska PubMed Central (PMC) Arctic Ellesmere Island Nunavut Nature Communications 4 1 |
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Article Rybczynski, Natalia Gosse, John C. Richard Harington, C. Wogelius, Roy A. Hidy, Alan J. Buckley, Mike Mid-Pliocene warm-period deposits in the High Arctic yield insight into camel evolution |
topic_facet |
Article |
description |
The mid-Pliocene was a global warm period, preceding the onset of Quaternary glaciations. Here we use cosmogenic nuclide dating to show that a fossiliferous terrestrial deposit that includes subfossil trees and the northern-most evidence of Pliocene ice wedge casts in Canada’s High Arctic (Ellesmere Island, Nunavut) was deposited during the mid-Pliocene warm period. The age estimates correspond to a general maximum in high latitude mean winter season insolation, consistent with the presence of a rich, boreal-type forest. Moreover, we report that these deposits have yielded the first evidence of a High Arctic camel, identified using collagen fingerprinting of a fragmentary fossil limb bone. Camels originated in North America and dispersed to Eurasia via the Bering Isthmus, an ephemeral land bridge linking Alaska and Russia. The results suggest that the evolutionary history of modern camels can be traced back to a lineage of giant camels that was well established in a forested Arctic. |
format |
Text |
author |
Rybczynski, Natalia Gosse, John C. Richard Harington, C. Wogelius, Roy A. Hidy, Alan J. Buckley, Mike |
author_facet |
Rybczynski, Natalia Gosse, John C. Richard Harington, C. Wogelius, Roy A. Hidy, Alan J. Buckley, Mike |
author_sort |
Rybczynski, Natalia |
title |
Mid-Pliocene warm-period deposits in the High Arctic yield insight into camel evolution |
title_short |
Mid-Pliocene warm-period deposits in the High Arctic yield insight into camel evolution |
title_full |
Mid-Pliocene warm-period deposits in the High Arctic yield insight into camel evolution |
title_fullStr |
Mid-Pliocene warm-period deposits in the High Arctic yield insight into camel evolution |
title_full_unstemmed |
Mid-Pliocene warm-period deposits in the High Arctic yield insight into camel evolution |
title_sort |
mid-pliocene warm-period deposits in the high arctic yield insight into camel evolution |
publisher |
Nature Pub. Group |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3615376 http://www.ncbi.nlm.nih.gov/pubmed/23462993 https://doi.org/10.1038/ncomms2516 |
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Arctic Ellesmere Island Nunavut |
geographic_facet |
Arctic Ellesmere Island Nunavut |
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Arctic Ellesmere Island Nunavut Alaska |
genre_facet |
Arctic Ellesmere Island Nunavut Alaska |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3615376 http://www.ncbi.nlm.nih.gov/pubmed/23462993 http://dx.doi.org/10.1038/ncomms2516 |
op_rights |
Copyright © 2013, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ |
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CC-BY-NC-SA |
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https://doi.org/10.1038/ncomms2516 |
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Nature Communications |
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4 |
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1 |
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1766313850807779328 |