Coexistence of Oligocene toothed and baleen-assisted mysticetes in the northwestern Pacific
Oligocene mysticetes display an unparalleled diversity and morphological disparity in the evolutionary history of Mysticeti. However, their paleoecological aspects, such as the patterns of coexistence of different morphotypes, remain poorly explored. Here we describe an aetiocetid (toothed mysticete...
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Language: | English |
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2024
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Online Access: | https://doi.org/10.3897/fr.27.e111567 https://fr.pensoft.net/article/111567/ |
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ftpensoft:10.3897/fr.27.e111567 2024-02-11T10:02:22+01:00 Coexistence of Oligocene toothed and baleen-assisted mysticetes in the northwestern Pacific Tsai,Cheng-Hsiu Kimura,Toshiyuki Hasegawa,Yoshikazu 2024 text/html https://doi.org/10.3897/fr.27.e111567 https://fr.pensoft.net/article/111567/ en eng Pensoft Publishers info:eu-repo/semantics/altIdentifier/eissn/2193-0074 info:eu-repo/semantics/altIdentifier/pissn/2193-0066 info:eu-repo/semantics/openAccess CC BY 4.0 Fossil Record 27(1): 95-100 Aetiocetidae Chattian Jinnobaru Formation Mysticeti toothed baleen whale Umashima Research Article 2024 ftpensoft https://doi.org/10.3897/fr.27.e111567 2024-01-16T01:07:26Z Oligocene mysticetes display an unparalleled diversity and morphological disparity in the evolutionary history of Mysticeti. However, their paleoecological aspects, such as the patterns of coexistence of different morphotypes, remain poorly explored. Here we describe an aetiocetid (toothed mysticete) from the Jinnobaru Formation (lower upper Oligocene, about 28 million years ago) of Umashima Island, Kitakyushu, Japan. Our description of a toothed mysticete from the Oligocene of Umashima exemplifies the coexistence of toothed and baleen-assisted mysticetes in the northwestern Pacific. Hopefully, new finds of Oligocene mysticetes will lead to a well-sampled dataset for analyzing this and other related paleoecological traits to understand the demise of “archaic” Oligocene mysticetes and the subsequent rise of the modern-looking baleen-bearing whales in Miocene times. Article in Journal/Newspaper baleen whale Pensoft Publishers Pacific Fossil Record 27 1 95 100 |
institution |
Open Polar |
collection |
Pensoft Publishers |
op_collection_id |
ftpensoft |
language |
English |
topic |
Aetiocetidae Chattian Jinnobaru Formation Mysticeti toothed baleen whale Umashima |
spellingShingle |
Aetiocetidae Chattian Jinnobaru Formation Mysticeti toothed baleen whale Umashima Tsai,Cheng-Hsiu Kimura,Toshiyuki Hasegawa,Yoshikazu Coexistence of Oligocene toothed and baleen-assisted mysticetes in the northwestern Pacific |
topic_facet |
Aetiocetidae Chattian Jinnobaru Formation Mysticeti toothed baleen whale Umashima |
description |
Oligocene mysticetes display an unparalleled diversity and morphological disparity in the evolutionary history of Mysticeti. However, their paleoecological aspects, such as the patterns of coexistence of different morphotypes, remain poorly explored. Here we describe an aetiocetid (toothed mysticete) from the Jinnobaru Formation (lower upper Oligocene, about 28 million years ago) of Umashima Island, Kitakyushu, Japan. Our description of a toothed mysticete from the Oligocene of Umashima exemplifies the coexistence of toothed and baleen-assisted mysticetes in the northwestern Pacific. Hopefully, new finds of Oligocene mysticetes will lead to a well-sampled dataset for analyzing this and other related paleoecological traits to understand the demise of “archaic” Oligocene mysticetes and the subsequent rise of the modern-looking baleen-bearing whales in Miocene times. |
format |
Article in Journal/Newspaper |
author |
Tsai,Cheng-Hsiu Kimura,Toshiyuki Hasegawa,Yoshikazu |
author_facet |
Tsai,Cheng-Hsiu Kimura,Toshiyuki Hasegawa,Yoshikazu |
author_sort |
Tsai,Cheng-Hsiu |
title |
Coexistence of Oligocene toothed and baleen-assisted mysticetes in the northwestern Pacific |
title_short |
Coexistence of Oligocene toothed and baleen-assisted mysticetes in the northwestern Pacific |
title_full |
Coexistence of Oligocene toothed and baleen-assisted mysticetes in the northwestern Pacific |
title_fullStr |
Coexistence of Oligocene toothed and baleen-assisted mysticetes in the northwestern Pacific |
title_full_unstemmed |
Coexistence of Oligocene toothed and baleen-assisted mysticetes in the northwestern Pacific |
title_sort |
coexistence of oligocene toothed and baleen-assisted mysticetes in the northwestern pacific |
publisher |
Pensoft Publishers |
publishDate |
2024 |
url |
https://doi.org/10.3897/fr.27.e111567 https://fr.pensoft.net/article/111567/ |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
baleen whale |
genre_facet |
baleen whale |
op_source |
Fossil Record 27(1): 95-100 |
op_relation |
info:eu-repo/semantics/altIdentifier/eissn/2193-0074 info:eu-repo/semantics/altIdentifier/pissn/2193-0066 |
op_rights |
info:eu-repo/semantics/openAccess CC BY 4.0 |
op_doi |
https://doi.org/10.3897/fr.27.e111567 |
container_title |
Fossil Record |
container_volume |
27 |
container_issue |
1 |
container_start_page |
95 |
op_container_end_page |
100 |
_version_ |
1790598300217376768 |