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Balaenoptera edeni skull from the Holocene (Quaternary) of Osaka City, Japan


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タイトル: Balaenoptera edeni skull from the Holocene (Quaternary) of Osaka City, Japan
著者: Tanaka, Yoshihiro 著作を一覧する
Taruno, Hiroyuki 著作を一覧する
キーワード: Bryde's whale
Balaenoptera brydei
Balaenoptera acutorostrata
Minke whale
Jomon period
発行日: 2017年10月
出版者: Coquina Press
誌名: Palaeontologia Electronica
巻: 20
号: 3
開始ページ: 1
終了ページ: 13
出版社 DOI: 10.26879/785
抄録: Skull remains of Balaenoptera edeni from the Holocene (about 8800 to 4000 years before present; a transgressive period) of Osaka City, Japan, was previously identified as B. acutorostrata. Here, we describe in detail and reidentify it based on having a large alisphenoid, which contacts with the squamosal widely and a broader rostrum than the one of B. acutorostrata. The specimen adds a chronologically and geographically new record to the not well-known species. The specimen suggests that the modern distribution of the species probably had already established about 8800 to 4000 years ago, which was the age of the Jomon transgression creating the Kawachi Bay, the former condition of Osaka Plain. More remains of B. edeni will provide better resolution of their distributional history.
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 田中 嘉寛


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