A Large Ornithurine Bird (Tingmiatornis arctica) from the Turonian High Arctic: Climatic and Evolutionary Implications
Bird fossils from Turonian (ca. 90 Ma) sediments of Axel Heiberg Island (High Canadian Arctic) are among the earliest North American records. The morphology of a large well-preserved humerus supports identification of a new volant, possibly diving, ornithurine species (Tingmiatornis arctica). The ne...
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ftpubmed:oai:pubmedcentral.nih.gov:5171645 2023-05-15T14:50:48+02:00 A Large Ornithurine Bird (Tingmiatornis arctica) from the Turonian High Arctic: Climatic and Evolutionary Implications Bono, Richard K. Clarke, Julia Tarduno, John A. Brinkman, Donald 2016-12-19 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5171645/ http://www.ncbi.nlm.nih.gov/pubmed/27991515 https://doi.org/10.1038/srep38876 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5171645/ http://www.ncbi.nlm.nih.gov/pubmed/27991515 http://dx.doi.org/10.1038/srep38876 Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by-nc-sa/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/ (http://creativecommons.org/licenses/by-nc-sa/4.0/) CC-BY-NC-SA Article Text 2016 ftpubmed https://doi.org/10.1038/srep38876 2017-01-01T01:04:17Z Bird fossils from Turonian (ca. 90 Ma) sediments of Axel Heiberg Island (High Canadian Arctic) are among the earliest North American records. The morphology of a large well-preserved humerus supports identification of a new volant, possibly diving, ornithurine species (Tingmiatornis arctica). The new bird fossils are part of a freshwater vertebrate fossil assemblage that documents a period of extreme climatic warmth without seasonal ice, with minimum mean annual temperatures of 14 °C. The extreme warmth allowed species expansion and establishment of an ecosystem more easily able to support large birds, especially in fresh water bodies such as those present in the Turonian High Arctic. Review of the high latitude distribution of Northern Hemisphere Mesozoic birds shows only ornithurine birds are known to have occupied these regions. We propose physiological differences in ornithurines such as growth rate may explain their latitudinal distribution especially as temperatures decline later in the Cretaceous. Distribution and physiology merit consideration as factors in their preferential survival of parts of one ornithurine lineage, Aves, through the K/Pg boundary. Text Arctic Axel Heiberg Island PubMed Central (PMC) Arctic Axel Heiberg Island ENVELOPE(-91.001,-91.001,79.752,79.752) Heiberg ENVELOPE(13.964,13.964,66.424,66.424) Scientific Reports 6 1 |
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Article Bono, Richard K. Clarke, Julia Tarduno, John A. Brinkman, Donald A Large Ornithurine Bird (Tingmiatornis arctica) from the Turonian High Arctic: Climatic and Evolutionary Implications |
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Article |
description |
Bird fossils from Turonian (ca. 90 Ma) sediments of Axel Heiberg Island (High Canadian Arctic) are among the earliest North American records. The morphology of a large well-preserved humerus supports identification of a new volant, possibly diving, ornithurine species (Tingmiatornis arctica). The new bird fossils are part of a freshwater vertebrate fossil assemblage that documents a period of extreme climatic warmth without seasonal ice, with minimum mean annual temperatures of 14 °C. The extreme warmth allowed species expansion and establishment of an ecosystem more easily able to support large birds, especially in fresh water bodies such as those present in the Turonian High Arctic. Review of the high latitude distribution of Northern Hemisphere Mesozoic birds shows only ornithurine birds are known to have occupied these regions. We propose physiological differences in ornithurines such as growth rate may explain their latitudinal distribution especially as temperatures decline later in the Cretaceous. Distribution and physiology merit consideration as factors in their preferential survival of parts of one ornithurine lineage, Aves, through the K/Pg boundary. |
format |
Text |
author |
Bono, Richard K. Clarke, Julia Tarduno, John A. Brinkman, Donald |
author_facet |
Bono, Richard K. Clarke, Julia Tarduno, John A. Brinkman, Donald |
author_sort |
Bono, Richard K. |
title |
A Large Ornithurine Bird (Tingmiatornis arctica) from the Turonian High Arctic: Climatic and Evolutionary Implications |
title_short |
A Large Ornithurine Bird (Tingmiatornis arctica) from the Turonian High Arctic: Climatic and Evolutionary Implications |
title_full |
A Large Ornithurine Bird (Tingmiatornis arctica) from the Turonian High Arctic: Climatic and Evolutionary Implications |
title_fullStr |
A Large Ornithurine Bird (Tingmiatornis arctica) from the Turonian High Arctic: Climatic and Evolutionary Implications |
title_full_unstemmed |
A Large Ornithurine Bird (Tingmiatornis arctica) from the Turonian High Arctic: Climatic and Evolutionary Implications |
title_sort |
large ornithurine bird (tingmiatornis arctica) from the turonian high arctic: climatic and evolutionary implications |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5171645/ http://www.ncbi.nlm.nih.gov/pubmed/27991515 https://doi.org/10.1038/srep38876 |
long_lat |
ENVELOPE(-91.001,-91.001,79.752,79.752) ENVELOPE(13.964,13.964,66.424,66.424) |
geographic |
Arctic Axel Heiberg Island Heiberg |
geographic_facet |
Arctic Axel Heiberg Island Heiberg |
genre |
Arctic Axel Heiberg Island |
genre_facet |
Arctic Axel Heiberg Island |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5171645/ http://www.ncbi.nlm.nih.gov/pubmed/27991515 http://dx.doi.org/10.1038/srep38876 |
op_rights |
Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by-nc-sa/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/ (http://creativecommons.org/licenses/by-nc-sa/4.0/) |
op_rightsnorm |
CC-BY-NC-SA |
op_doi |
https://doi.org/10.1038/srep38876 |
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Scientific Reports |
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6 |
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