Charting the course of pinniped evolution: insights from molecular phylogeny and fossil record integration
Abstract Pinnipeds (seals, sea lions, walruses, and their fossil relatives) are one of the most successful mammalian clades to live in the oceans. Despite a well-resolved molecular phylogeny and a global fossil record, a complete understanding of their macroevolutionary dynamics remains hampered by...
Published in: | Evolution |
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Oxford University Press (OUP)
2024
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Online Access: | http://dx.doi.org/10.1093/evolut/qpae061 https://academic.oup.com/evolut/advance-article-pdf/doi/10.1093/evolut/qpae061/58064192/qpae061.pdf https://academic.oup.com/evolut/article-pdf/78/7/1212/58380487/qpae061.pdf |
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croxfordunivpr:10.1093/evolut/qpae061 2024-09-15T18:23:35+00:00 Charting the course of pinniped evolution: insights from molecular phylogeny and fossil record integration Park, Travis Burin, Gustavo Lazo-Cancino, Daniela Rees, Joseph P G Rule, James P Slater, Graham J Cooper, Natalie Warnock, Rachel Zelditch, Miriam Leverhulme Trust Research Project ARC DECRA Fellowship Agencia Nacional de Investigación y Desarrollo (ANID) Doctoral Fellowship UKRI Fellowship Engineering and Physical Sciences Research Council 2024 http://dx.doi.org/10.1093/evolut/qpae061 https://academic.oup.com/evolut/advance-article-pdf/doi/10.1093/evolut/qpae061/58064192/qpae061.pdf https://academic.oup.com/evolut/article-pdf/78/7/1212/58380487/qpae061.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by-nc-nd/4.0/ Evolution volume 78, issue 7, page 1212-1226 ISSN 0014-3820 1558-5646 journal-article 2024 croxfordunivpr https://doi.org/10.1093/evolut/qpae061 2024-07-08T04:25:55Z Abstract Pinnipeds (seals, sea lions, walruses, and their fossil relatives) are one of the most successful mammalian clades to live in the oceans. Despite a well-resolved molecular phylogeny and a global fossil record, a complete understanding of their macroevolutionary dynamics remains hampered by a lack of formal analyses that combine these 2 rich sources of information. We used a meta-analytic approach to infer the most densely sampled pinniped phylogeny to date (36 recent and 93 fossil taxa) and used phylogenetic paleobiological methods to study their diversification dynamics and biogeographic history. Pinnipeds mostly diversified at constant rates. Walruses, however, experienced rapid turnover in which extinction rates ultimately exceeded speciation rates from 12 to 6 Ma, possibly due to changing sea levels and/or competition with otariids (eared seals). Historical biogeographic analyses, including fossil data, allowed us to confidently identify the North Pacific and the North Atlantic (plus or minus Paratethys) as the ancestral ranges of Otarioidea (eared seals + walrus) and crown phocids (earless seals), respectively. Yet, despite the novel addition of stem pan-pinniped taxa, the region of origin for Pan-Pinnipedia remained ambiguous. These results suggest further avenues of study in pinnipeds and provide a framework for investigating other groups with substantial extinct and extant diversity. Article in Journal/Newspaper North Atlantic walrus* Oxford University Press Evolution |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Pinnipeds (seals, sea lions, walruses, and their fossil relatives) are one of the most successful mammalian clades to live in the oceans. Despite a well-resolved molecular phylogeny and a global fossil record, a complete understanding of their macroevolutionary dynamics remains hampered by a lack of formal analyses that combine these 2 rich sources of information. We used a meta-analytic approach to infer the most densely sampled pinniped phylogeny to date (36 recent and 93 fossil taxa) and used phylogenetic paleobiological methods to study their diversification dynamics and biogeographic history. Pinnipeds mostly diversified at constant rates. Walruses, however, experienced rapid turnover in which extinction rates ultimately exceeded speciation rates from 12 to 6 Ma, possibly due to changing sea levels and/or competition with otariids (eared seals). Historical biogeographic analyses, including fossil data, allowed us to confidently identify the North Pacific and the North Atlantic (plus or minus Paratethys) as the ancestral ranges of Otarioidea (eared seals + walrus) and crown phocids (earless seals), respectively. Yet, despite the novel addition of stem pan-pinniped taxa, the region of origin for Pan-Pinnipedia remained ambiguous. These results suggest further avenues of study in pinnipeds and provide a framework for investigating other groups with substantial extinct and extant diversity. |
author2 |
Warnock, Rachel Zelditch, Miriam Leverhulme Trust Research Project ARC DECRA Fellowship Agencia Nacional de Investigación y Desarrollo (ANID) Doctoral Fellowship UKRI Fellowship Engineering and Physical Sciences Research Council |
format |
Article in Journal/Newspaper |
author |
Park, Travis Burin, Gustavo Lazo-Cancino, Daniela Rees, Joseph P G Rule, James P Slater, Graham J Cooper, Natalie |
spellingShingle |
Park, Travis Burin, Gustavo Lazo-Cancino, Daniela Rees, Joseph P G Rule, James P Slater, Graham J Cooper, Natalie Charting the course of pinniped evolution: insights from molecular phylogeny and fossil record integration |
author_facet |
Park, Travis Burin, Gustavo Lazo-Cancino, Daniela Rees, Joseph P G Rule, James P Slater, Graham J Cooper, Natalie |
author_sort |
Park, Travis |
title |
Charting the course of pinniped evolution: insights from molecular phylogeny and fossil record integration |
title_short |
Charting the course of pinniped evolution: insights from molecular phylogeny and fossil record integration |
title_full |
Charting the course of pinniped evolution: insights from molecular phylogeny and fossil record integration |
title_fullStr |
Charting the course of pinniped evolution: insights from molecular phylogeny and fossil record integration |
title_full_unstemmed |
Charting the course of pinniped evolution: insights from molecular phylogeny and fossil record integration |
title_sort |
charting the course of pinniped evolution: insights from molecular phylogeny and fossil record integration |
publisher |
Oxford University Press (OUP) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1093/evolut/qpae061 https://academic.oup.com/evolut/advance-article-pdf/doi/10.1093/evolut/qpae061/58064192/qpae061.pdf https://academic.oup.com/evolut/article-pdf/78/7/1212/58380487/qpae061.pdf |
genre |
North Atlantic walrus* |
genre_facet |
North Atlantic walrus* |
op_source |
Evolution volume 78, issue 7, page 1212-1226 ISSN 0014-3820 1558-5646 |
op_rights |
https://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1093/evolut/qpae061 |
container_title |
Evolution |
_version_ |
1810463827039354880 |