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2008 Fiscal Year Final Research Report

Reconstraction of the dietary preferences of desmostylians based on microwear, stable isotope and trace element analyses

Research Project

  • PDF
Project/Area Number 17340156
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Stratigraphy/Paleontology
Research InstitutionNational Museum of Nature and Science, Tokyo

Principal Investigator

KOHNO Naoki  National Museum of Nature and Science, Tokyo, 地学研究部, 研究主幹 (20250136)

Co-Investigator(Renkei-kenkyūsha) TARU Hajime  神奈川県立生命の星地球博物館, 学芸部, 主任学芸員 (50260344)
YONEDA Minoru  東京大学, 大学院新領域創成科学研究科, 准教授 (30280712)
Research Collaborator UNO Hikaru  東京大学, 大学院新領域創成科学研究科, 特任研究員
FROHLICH Bluno  米国国立自然史博物館, 人類研究部, キュレーター
Project Period (FY) 2005 – 2008
Keywords束柱類 / 食性 / 微小磨耗痕 / 安定同位体 / 微量元素
Research Abstract

子孫を残さず絶滅してしまった海生哺乳類の束柱類について, 歯の微小磨耗痕, 炭素・酸素の安定同位体およびストロンチウムなどの微量元素の組成から食性の推定を試みた. その結果, 束柱類は(1)汽水域で小動物もしくは植物を摂食していたこと, (2)束柱類を代表するデスモスチルスは, 吸引索餌によって小動物を摂取していたことなどが明らかになった. また, デスモスチルスの特異な柱状歯は, 吸引の際に顎を固定する支柱として機能したことを, 初めて合理的に説明した.

  • Research Products

    (11 results)

All 2009 2008 2006 2005

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (9 results)

  • [Journal Article] Dietary preferences of desmostylians based on isotope, microwear and cranial morphology2008

    • Author(s)
      Uno, H., Yoneda, M., Taru, H. and Kohno, N.
    • Journal Title

      Journal of Vertebrate Paleontology 28

      Pages: 180A

    • Peer Reviewed
  • [Journal Article] Estimation of dietary and habitat preferences of Desmostylus and Paleoparadoxia based on carbon and oxygen stable isotpe and trace element analyses2006

    • Author(s)
      Uno, H., Yoneda, M., Taru, H. and Kohno, N.
    • Journal Title

      Journal of Vertebrate Paleontology 26

      Pages: 134A

    • Peer Reviewed
  • [Presentation] デスモスチルス類(哺乳類:テチス獣類:束柱類)の古生態の復元 : 形態機能解析2009

    • Author(s)
      甲能直樹・樽創・鵜野光・米田穣
    • Organizer
      日本古生物学会第158回例会
    • Place of Presentation
      琉球大学
    • Year and Date
      2009-01-31
  • [Presentation] Dietary preferences of desmostylians based on isotope, microwear and cranial morphology2008

    • Author(s)
      Uno, H., Yoneda, M., Taru, H. and Kohno, N.
    • Organizer
      68th Annual Meeting of the Society of Vertebrate Paleontology
    • Place of Presentation
      Cleveland, Ohio, USA
    • Year and Date
      2008-10-14
  • [Presentation] 同位体・微小磨耗痕・頭蓋形態に基づくデスモスチルス類の食性復元2008

    • Author(s)
      鵜野光・米田穣・樽創・甲能直樹
    • Organizer
      日本古生物学会2008年年会
    • Place of Presentation
      東北大学
    • Year and Date
      2008-07-05
  • [Presentation] Estimation of dietary and bhabitat preferences of Desmostylus and Paleoparadoxia based on carbon and oxygen stable isotope and trace element analyses2008

    • Author(s)
      Uno, H., Yoneda, M., Taru, H. and Kohno, N.
    • Organizer
      5th Conference on Secondary Adaptation of Tetrapods to Life in Water
    • Place of Presentation
      国立科学博物館
    • Year and Date
      2008-06-10
  • [Presentation] Estimation of dietary and bhabitat preferences of Desmostylus and Paleoparadoxia based on carbon and oxygen stable isotope and trace element analyses2006

    • Author(s)
      Uno, H., Yoneda, M., Taru, H. and Kohno, N.
    • Organizer
      66th Annual Meeting of the Society of Vertebrate Paleontology
    • Place of Presentation
      Ottawa, Ontario, Canada
    • Year and Date
      2006-10-19
  • [Presentation] 高解像度X線CTによって明らかにされるデスモスチルス(哺乳類:テチス獣類:束柱類)の歯の特異な交換様式の進化2006

    • Author(s)
      甲能直樹.樽創.鵜野光 Flohlich, B.
    • Organizer
      日本古生物学会第155回例会
    • Place of Presentation
      京都大学
    • Year and Date
      2006-02-04
  • [Presentation] エナメル質の炭素・酸素同位体および微量元素分析に基づくDesmostylusとPaleoparadoxia (束柱目)の食性と生息環境の復元2005

    • Author(s)
      鵜野光・米田穣・柴田康行・樽創・甲能直樹
    • Organizer
      日本進化学会第7回大会
    • Place of Presentation
      東北大学
    • Year and Date
      2005-08-28
  • [Presentation] 歯の微小磨耗痕の観察から推定される束柱類の顎運動2005

    • Author(s)
      樽創・甲能直樹
    • Organizer
      日本古生物学会2005年年会
    • Place of Presentation
      東京大学
    • Year and Date
      2005-07-02
  • [Presentation] Evolution of special tooth replacements and displacements in Desmostylia as revealed by high-resolution X-ray CT2005

    • Author(s)
      Kohno, N.
    • Organizer
      4th Conference on Secondary Adaptation of Tetrapods to Life m Water
    • Place of Presentation
      Akron, Ohio, USA
    • Year and Date
      2005-05-18

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Published: 2010-06-10   Modified: 2016-04-21  

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