A new species of Middle Miocene baleen whale from the Nupinai Group, Hikatagawa Formation of Hokkaido, Japan

A fossil whale from the Hikatagawa Formation (Middle Miocene, 15.2–11.5 Ma) of Hokkaido, Japan is described as a new genus and species Taikicetus inouei and its phylogenetic position is examined. Consistent with the result of Marx, Lambert & de Muizon (2017), the Cetotheriidae form a clade with...

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Published in:PeerJ
Main Authors: Yoshihiro Tanaka, Tatsuro Ando, Hiroshi Sawamura
Format: Article in Journal/Newspaper
Language:English
Published: PeerJ Inc. 2018
Subjects:
R
Online Access:https://doi.org/10.7717/peerj.4934
https://doaj.org/article/3f73a32c72a640eb91d1b38ab0303079
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spelling ftdoajarticles:oai:doaj.org/article:3f73a32c72a640eb91d1b38ab0303079 2024-01-07T09:42:21+01:00 A new species of Middle Miocene baleen whale from the Nupinai Group, Hikatagawa Formation of Hokkaido, Japan Yoshihiro Tanaka Tatsuro Ando Hiroshi Sawamura 2018-06-01T00:00:00Z https://doi.org/10.7717/peerj.4934 https://doaj.org/article/3f73a32c72a640eb91d1b38ab0303079 EN eng PeerJ Inc. https://peerj.com/articles/4934.pdf https://peerj.com/articles/4934/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.4934 2167-8359 https://doaj.org/article/3f73a32c72a640eb91d1b38ab0303079 PeerJ, Vol 6, p e4934 (2018) Fossil Baleen whale New genus New species Mysticeti Medicine R Biology (General) QH301-705.5 article 2018 ftdoajarticles https://doi.org/10.7717/peerj.4934 2023-12-10T01:51:24Z A fossil whale from the Hikatagawa Formation (Middle Miocene, 15.2–11.5 Ma) of Hokkaido, Japan is described as a new genus and species Taikicetus inouei and its phylogenetic position is examined. Consistent with the result of Marx, Lambert & de Muizon (2017), the Cetotheriidae form a clade with the Balaenopteroidea, and “a clade comprising Isanacetus, Parietobalaena and related taxa” is located basal to the Balaenopteroidea + Cetotheriidae clade. Taikicetus inouei is placed in the clade with most of members of “Cetotheres” sensu lato comprising Isanacetus, Parietobalaena and related taxa. Taikicetus inouei can be distinguished from the other members of “Cetotheres” sensu lato in having an anteriorly swollen short zygomatic process, high triangular coronoid process, and angular process, which does not reach as far posterior as the mandibular condyle. Taikicetus inouei is only record of “Cetotheres” sensu lato from Hokkaido, Japan and the northern-most records of “Cetotheres” sensu lato in Japan. Article in Journal/Newspaper baleen whale Directory of Open Access Journals: DOAJ Articles PeerJ 6 e4934
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Fossil
Baleen whale
New genus
New species
Mysticeti
Medicine
R
Biology (General)
QH301-705.5
spellingShingle Fossil
Baleen whale
New genus
New species
Mysticeti
Medicine
R
Biology (General)
QH301-705.5
Yoshihiro Tanaka
Tatsuro Ando
Hiroshi Sawamura
A new species of Middle Miocene baleen whale from the Nupinai Group, Hikatagawa Formation of Hokkaido, Japan
topic_facet Fossil
Baleen whale
New genus
New species
Mysticeti
Medicine
R
Biology (General)
QH301-705.5
description A fossil whale from the Hikatagawa Formation (Middle Miocene, 15.2–11.5 Ma) of Hokkaido, Japan is described as a new genus and species Taikicetus inouei and its phylogenetic position is examined. Consistent with the result of Marx, Lambert & de Muizon (2017), the Cetotheriidae form a clade with the Balaenopteroidea, and “a clade comprising Isanacetus, Parietobalaena and related taxa” is located basal to the Balaenopteroidea + Cetotheriidae clade. Taikicetus inouei is placed in the clade with most of members of “Cetotheres” sensu lato comprising Isanacetus, Parietobalaena and related taxa. Taikicetus inouei can be distinguished from the other members of “Cetotheres” sensu lato in having an anteriorly swollen short zygomatic process, high triangular coronoid process, and angular process, which does not reach as far posterior as the mandibular condyle. Taikicetus inouei is only record of “Cetotheres” sensu lato from Hokkaido, Japan and the northern-most records of “Cetotheres” sensu lato in Japan.
format Article in Journal/Newspaper
author Yoshihiro Tanaka
Tatsuro Ando
Hiroshi Sawamura
author_facet Yoshihiro Tanaka
Tatsuro Ando
Hiroshi Sawamura
author_sort Yoshihiro Tanaka
title A new species of Middle Miocene baleen whale from the Nupinai Group, Hikatagawa Formation of Hokkaido, Japan
title_short A new species of Middle Miocene baleen whale from the Nupinai Group, Hikatagawa Formation of Hokkaido, Japan
title_full A new species of Middle Miocene baleen whale from the Nupinai Group, Hikatagawa Formation of Hokkaido, Japan
title_fullStr A new species of Middle Miocene baleen whale from the Nupinai Group, Hikatagawa Formation of Hokkaido, Japan
title_full_unstemmed A new species of Middle Miocene baleen whale from the Nupinai Group, Hikatagawa Formation of Hokkaido, Japan
title_sort new species of middle miocene baleen whale from the nupinai group, hikatagawa formation of hokkaido, japan
publisher PeerJ Inc.
publishDate 2018
url https://doi.org/10.7717/peerj.4934
https://doaj.org/article/3f73a32c72a640eb91d1b38ab0303079
genre baleen whale
genre_facet baleen whale
op_source PeerJ, Vol 6, p e4934 (2018)
op_relation https://peerj.com/articles/4934.pdf
https://peerj.com/articles/4934/
https://doaj.org/toc/2167-8359
doi:10.7717/peerj.4934
2167-8359
https://doaj.org/article/3f73a32c72a640eb91d1b38ab0303079
op_doi https://doi.org/10.7717/peerj.4934
container_title PeerJ
container_volume 6
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