Eocene ostracodes from the Iwaya Formation on Awajishima Island, southwestern Japan

• YAMAGUCHI Tatsuhiko

  Graduate School of Natural Science and Technology, Kanazawa University

• MATSUBARA Takashi

  Division of Natural History, Museum of Nature and Human Activities, Sanda

• KAMIYA Takahiro

  Graduate School of Natural Science and Technology, Kanazawa University

抄録

The ostracode fauna from the middle-upper Eocene Iwaya Formation on Awajishima Island, Hyogo Prefecture, southwestern Japan was studied to reveal a band of the Eocene ostracode faunal spectrum in the middle latitudes of the northwestern Pacific. Based on lithofacies and previously reported calcareous nannofossils, molluscs, and benthic foraminifers, the ostracodes were found to have inhabited inner shelf environments. The ostracodes entirely differ from the Eocene-earliest Oligocene faunas in Kyushu, southwestern Japan and the East China Sea, both in generic and specific composition. The difference is considered to be due to paleoclimatic and paleogeographic differences between Awajishima Island and moresouthern latitudes at that time.<br>Described species include three new species, Munseyella setouchiensis sp. nov., Hanaiborchella reticularitriangularis sp. nov., and Trachyleberis awajiensis sp. nov.

収録刊行物

• Ｐａｌｅｏｎｔｏｌｏｇｉｃａｌ　Ｒｅｓｅａｒｃｈ

  Ｐａｌｅｏｎｔｏｌｏｇｉｃａｌ　Ｒｅｓｅａｒｃｈ 9 (4), 305-318, 2005

  日本古生物学会

キーワード

• Eocene
• Iwaya Formation
• Ostracoda
• paleobiogeography
• paleoecology
• taxonomy

詳細情報

• CRID: 1390282679062587776
• NII論文ID: 130004456730
• NII論文ID: 110003479886
• NII論文ID: 210000132325
• NII書誌ID: AA11137385
• DOI: 10.2517/prpsj.9.305
• ISSN: 18800068
• ISSN: 13428144
• NDL書誌ID: 7772678
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7772678
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可