Middle Permian ammonoids from the Kamiyasse-Imo district in the Southern Kitakami Massif, Northeast Japan

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概要

• 論文の詳細を見る

• Middle Permian ammonoid faunas are recognized from the Hosoo and Kamiyasse Formations in the Kamiyasse-Imo district, north of Kesennuma, Southern Kitakami Massif, Northeast Japan. The faunas comprise the following genera: Parastacheoceras, Demarezites, Demarezites?, Waagenoceras, Timorites, Tauroceras?, Cardiella, Adrianites, Agathiceras, Agathiceras?, Paraceltites and Cibolites. Parastacheoceras bidentatus gen. and sp. nov. is newly proposed. The genera Demarezites, Tauroceras, Cardiella and Adrianites are described for first time from Japan. Based on these ammonoids, the middle part of the Hosoo Formation, upper part of the Hosoo Formation to the lower middle part of the Kamiyasse Formation, and upper middle part of the Kamiyasse Formation are correlatable with the Middle Permian Roadian, Wordian and Capitanian, respectively. The discovery of genera Demarezites and Cardiella strongly supports the previous hypothesis that the South Kitakami Paleoland was located in the equatorial province during the Middle Permian.

• 日本古生物学会の論文
• 2005-04-30

著者

• EHIRO Masayuki

  The Tohoku University Museum

• Misaki Akihiro

  Kitakyushu Museum Of Natural History & Human History Fukuoka Jpn

• Ehiro Masayuki

  Tohoku Univ. Museum Sendai Jpn

• MISAKI AKIHIRO

  Institute of Geology and Paleontology, Tohoku University

関連論文

• K-Ar ages of biotite and muscovite from Pangong metamorphic complex, Shyok suture zone, India : Implications for the youngest post-collision metamorphic event in Ladakh Himalaya
• Discovery of Jurassic ammonoids from the Shyok suture zone to the northeast of Chang La Pass, Ladakh, northwest India and its tectonic significance
• A new species of Stacheoceras (Permian ammonoid) from the Upper Permian in the South Kitakami Belt, Northeast Japan
• Permian ammonoid Kufengoceras from the uppermost Maokou Formation (earliest Wuchiapingian) at Penglaitan, Laibin Area, Guangxi Autonomous Region, South China
• Middle Permian ammonoids from the Kamiyasse-Imo district in the Southern Kitakami Massif, Northeast Japan
• Permian orthoconic cephalopods of the Ochiai Formation in the Southern Kitakami Mountains, Northeast Japan
• Geological relationship between Anyui Metamorphic Complex and Samarka terrane, Far East Russia
• Early Carboniferous ammonoid Dombarites from the Taishaku Limestone, Akiyoshi Belt, Southwest Japan

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