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Study on sauropod dinosaur Tambatitanis amicitiae

Research Project

Project/Area Number 16K05595
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Stratigraphy/Paleontology
Research InstitutionUniversity of Hyogo

Principal Investigator

Saegusa Haruo  兵庫県立大学, 自然・環境科学研究所, 准教授 (70254456)

Co-Investigator(Kenkyū-buntansha) 池田 忠広  兵庫県立人と自然の博物館, その他部局等, 研究員(移行) (50508455)
Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords恐竜 / 竜脚類 / 体幹骨格 / 脳函 / 含気化 / 肋骨 / 腸骨 / 気嚢 / 白亜紀 / ティタノサウルス類 / ティタノサウルス形類 / 気嚢憩室 / 篠山層群 / 頸部 / 系統進化 / 層位・古生物学 / 脊椎動物
Outline of Final Research Achievements

The morphology of ribs suggest that Late Cretaceous titanosaurs and Japanse Early Cretaceous titanosauriform, Tambatitanis share laterally expanding trunk. Close similarity between them is also seen in the surface morphology of thier braincase . Those similarity between them can be considered as features derived from their common ancestor.
Some South American titanosaur and Tambatitanis also sharethe specific median location of penumatic foramen and dorsal position of penumatic cavities in ilium. However, this comonality appears to be the result of convergent evolution.

Academic Significance and Societal Importance of the Research Achievements

白亜紀後期に繁栄した竜脚類であるティタノサウルス類の起源およびそれらに特徴的な形態の進化はまだ不明な点が多いが、日本を代表する竜脚類であるTambatitanis の形質にそれを解くヒントがあることが判明した。今後本研究で明らかになった形質をさらに多くのティタノサウルス類で調査すれば、白亜紀後期の竜脚類の古生態および生物地理の解明に貢献するだろう。
Tambatitanis は保存状態の良い竜脚類恐竜であり、普及書やテレビ番組で取り上げられるなど一般の関心も高い。したがって、その研究成果をこれらメディアを通じて広めれば、科学に対する関心を高めることに貢献するだろう。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (7 results)

All 2020 2018 2016

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (6 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] 3Dモデリングによるミエゾウとタンバティタニスの骨格復元2020

    • Author(s)
      三枝春生
    • Journal Title

      化石研究会会誌

      Volume: 52 Pages: 44-53

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] 恐竜および長鼻類骨格の3D復元2018

    • Author(s)
      三枝春生
    • Organizer
      化石研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] 下部白亜系篠山層群の脊椎動物化石新産地.2018

    • Author(s)
      三枝春生・池田忠広・久保田克博・生野賢司・菊池直樹
    • Organizer
      日本古生物学会第167回例会,愛媛大学,愛媛県
    • Related Report
      2017 Research-status Report
  • [Presentation] Some peculiar features of Tambatitanis amicitiae (Sauropoda, Titanosauriforms) revealed by virtual skeletal reconstruction.2016

    • Author(s)
      Saegusa, H., Ikeda, T.
    • Organizer
      76th Annual Meeting, Society of Vertebrate Paleontology
    • Place of Presentation
      Grand America Hotel (Salt Lake City, Utah, USA)
    • Year and Date
      2016-10-26
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Dinosaur eggs and associated vertebrate remains from the Lower Cretaceous Sasayama Group of Hyogo Prefecture, Japan.2016

    • Author(s)
      Saegusa, H., Tanaka, K., Ikeda, T., Zelenitsky, D.
    • Organizer
      日本古生物学会、2016年年会
    • Place of Presentation
      福井県立大学(福井市)
    • Year and Date
      2016-06-24
    • Related Report
      2016 Research-status Report
  • [Presentation] 丹波竜(Tambatitanis amicitiae) の全身骨格復元模型の作成―恐竜を生かした町づくり―2016

    • Author(s)
      三枝春生,小川英樹,小野慎二,西川巌
    • Organizer
      展示学会、第35回研究大会
    • Place of Presentation
      京都造形芸術大学(京都市)
    • Related Report
      2016 Research-status Report
  • [Presentation] Tambatitanis amicitiae の骨格復元2016

    • Author(s)
      三枝春生・池田忠広
    • Organizer
      日本古生物学会、2016年年会
    • Place of Presentation
      福井県立大学(福井市)
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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