著者

藤井 英一 上野 輝彌 島口 天

出版者

国立科学博物館

雑誌

国立科学博物館研究報告 C類 地質学・古生物学 (ISSN:18819079)

巻号頁・発行日

vol.33, pp.89-93, 2007-12

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A fossil barbourisiid whalefish collected beside the Arakawa River, Aomori City, and believed to be from the Middle Miocene Wadagawa Formation, is described as a new genus and species, Miobarbourisia aomori in the family Barbourisiidae. The genus Miobarbourisia is more primitive to other whalefishes (including Barbourisia) in having large, long pelvic fins, a more anterior dorsal fin and an anal fin far behind the origin of the dorsal fin. This specimen is the first whalefish fossil discovered worldwide.