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Habitats of Bivalves in the Lower-Cretaceous Aptian Tanohata and Aptian to Albian Hiraiga Formations, Iwate Prefecture, Northeastern Japan

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タイトル: Habitats of Bivalves in the Lower-Cretaceous Aptian Tanohata and Aptian to Albian Hiraiga Formations, Iwate Prefecture, Northeastern Japan
著者: Komatsu, Toshifumi 著作を一覧する
Yoshihara, Kazuki 著作を一覧する
Dick, Matthew H. 著作を一覧する
Takashima, Reishi 著作を一覧する
Ostrovsky, Andrew N. 著作を一覧する
Nishi, Hiroshi 著作を一覧する
キーワード: Bivalve
Depositional environment
Mid-Cretaceous
Miyako Group
Palaeoecology
発行日: 2008年
出版者: 21st Century COE for Neo-Science of Natural History, Hokkaido University
引用: Edited by Hisatake Okada, Shunsuke F. Mawatari, Noriyuki Suzuki, Pitambar Gautam. ISBN: 978-4-9903990-0-9
誌名: Origin and Evolution of Natural Diversity : Proceedings of the International Symposium, The Origin and Evolution of Natural Diversity, held from 1-5 October 2007 in Sapporo, Japan
開始ページ: 163
終了ページ: 170
抄録: We reconstructed the depositional environments, assemblages, and habitats of characteristic bivalve species in the Cretaceous Miyako Group, Iwate Prefecture, Northeast Japan. The upper part of the Aptian Tanohata Formation and the lower part of the Aptian to Albian Hiraiga Formation are composed mainly of wave- and storm-dominated shoreface and inner-shelf fossiliferous deposits. The shoreface deposits contain abundant allochthonous bivalve shells. In-situ preserved Cucullaea acuticarinata Nagao, Pterotrigonia hokkaidoana (Yehara), Pterotrigonia yokoyamai (Yehara), and Goniomya subarchiachi Nagao are common in inner-shelf deposits. These fossils provide important knowledge concerning the evolutionary history of Lower to mid-Cretaceous shallow marine benthic communities.
記述: International Symposium, "The Origin and Evolution of Natural Diversity". 1–5 October 2007. Sapporo, Japan.
資料タイプ: proceedings
URI: http://hdl.handle.net/2115/38454
出現コレクション:Proceedings

 

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