An Early Miocene kentriodontoid (Cetacea: Odontoceti) from the western North Pacific, and its implications for their phylogeny and paleobiogeography
So–called ‘kentriodontids’ are extinct dolphin–like odontocetes known from the Early to Late Miocene worldwide. Although recent studies have proposed that they were monophyletic, their taxonomic relationships still remain controversial. Such a controversy exists partly because of the predominance of...
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ftdoajarticles:oai:doaj.org/article:da87cb94056148ca84044db7b9d4b5db 2023-05-15T17:33:48+02:00 An Early Miocene kentriodontoid (Cetacea: Odontoceti) from the western North Pacific, and its implications for their phylogeny and paleobiogeography Zixuan Guo Naoki Kohno 2023-01-01T00:00:00Z https://doaj.org/article/da87cb94056148ca84044db7b9d4b5db EN eng Public Library of Science (PLoS) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9931143/?tool=EBI https://doaj.org/toc/1932-6203 1932-6203 https://doaj.org/article/da87cb94056148ca84044db7b9d4b5db PLoS ONE, Vol 18, Iss 2 (2023) Medicine R Science Q article 2023 ftdoajarticles 2023-02-19T01:26:08Z So–called ‘kentriodontids’ are extinct dolphin–like odontocetes known from the Early to Late Miocene worldwide. Although recent studies have proposed that they were monophyletic, their taxonomic relationships still remain controversial. Such a controversy exists partly because of the predominance of primitive morphologies in this taxon, but the fact is that quite a few ‘kentriodontids’ are known only from fragmentary skulls and/or isolated periotics. A new ‘kentriodontid’ Platysvercus ugonis gen. et sp. nov. is described based on a nearly complete skull from the upper Lower Miocene Sugota Formation, Akita Prefecture, northern Japan. Based on the phylogenetic analysis of P. ugonis described here, the monophyly of the ‘kentriodontids’ is confirmed, and it is recognized as the superfamily Kentriodontoidea. This new superfamily is subdivided into two families as new ranks: Kentriodontidae and Lophocetidae. Based on the paleobiogeographic analysis of the Kentriodontoidea, their common ancestor emerged in the North Pacific Ocean and spread over the Northern Hemisphere. Initial diversification of the Kentriodontidae in the North Pacific Ocean and the Lophocetidae in the North Atlantic Ocean was recognized as a vicariance event. The diversification and extinction of the Kentriodontoidea could have been synchronously influenced by climate events during the Middle Miocene. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Pacific |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Medicine R Science Q |
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Medicine R Science Q Zixuan Guo Naoki Kohno An Early Miocene kentriodontoid (Cetacea: Odontoceti) from the western North Pacific, and its implications for their phylogeny and paleobiogeography |
topic_facet |
Medicine R Science Q |
description |
So–called ‘kentriodontids’ are extinct dolphin–like odontocetes known from the Early to Late Miocene worldwide. Although recent studies have proposed that they were monophyletic, their taxonomic relationships still remain controversial. Such a controversy exists partly because of the predominance of primitive morphologies in this taxon, but the fact is that quite a few ‘kentriodontids’ are known only from fragmentary skulls and/or isolated periotics. A new ‘kentriodontid’ Platysvercus ugonis gen. et sp. nov. is described based on a nearly complete skull from the upper Lower Miocene Sugota Formation, Akita Prefecture, northern Japan. Based on the phylogenetic analysis of P. ugonis described here, the monophyly of the ‘kentriodontids’ is confirmed, and it is recognized as the superfamily Kentriodontoidea. This new superfamily is subdivided into two families as new ranks: Kentriodontidae and Lophocetidae. Based on the paleobiogeographic analysis of the Kentriodontoidea, their common ancestor emerged in the North Pacific Ocean and spread over the Northern Hemisphere. Initial diversification of the Kentriodontidae in the North Pacific Ocean and the Lophocetidae in the North Atlantic Ocean was recognized as a vicariance event. The diversification and extinction of the Kentriodontoidea could have been synchronously influenced by climate events during the Middle Miocene. |
format |
Article in Journal/Newspaper |
author |
Zixuan Guo Naoki Kohno |
author_facet |
Zixuan Guo Naoki Kohno |
author_sort |
Zixuan Guo |
title |
An Early Miocene kentriodontoid (Cetacea: Odontoceti) from the western North Pacific, and its implications for their phylogeny and paleobiogeography |
title_short |
An Early Miocene kentriodontoid (Cetacea: Odontoceti) from the western North Pacific, and its implications for their phylogeny and paleobiogeography |
title_full |
An Early Miocene kentriodontoid (Cetacea: Odontoceti) from the western North Pacific, and its implications for their phylogeny and paleobiogeography |
title_fullStr |
An Early Miocene kentriodontoid (Cetacea: Odontoceti) from the western North Pacific, and its implications for their phylogeny and paleobiogeography |
title_full_unstemmed |
An Early Miocene kentriodontoid (Cetacea: Odontoceti) from the western North Pacific, and its implications for their phylogeny and paleobiogeography |
title_sort |
early miocene kentriodontoid (cetacea: odontoceti) from the western north pacific, and its implications for their phylogeny and paleobiogeography |
publisher |
Public Library of Science (PLoS) |
publishDate |
2023 |
url |
https://doaj.org/article/da87cb94056148ca84044db7b9d4b5db |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
PLoS ONE, Vol 18, Iss 2 (2023) |
op_relation |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9931143/?tool=EBI https://doaj.org/toc/1932-6203 1932-6203 https://doaj.org/article/da87cb94056148ca84044db7b9d4b5db |
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1766132420253319168 |