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Relationship between skeletal morphology and gait system in quadrupedal tetrapods with implications to gait reconstructions of extinct taxa

Research Project

Project/Area Number 17K17794
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Evolutionary biology
Stratigraphy/Paleontology
Research InstitutionNagoya University

Principal Investigator

Fujiwara Shin-ichi  名古屋大学, 博物館, 講師 (30571236)

Project Period (FY) 2017-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords機能形態 / 運動様式 / 姿勢 / 重心 / 飛翔 / 四肢動物 / 運動機能 / 羽ばたき / 胸部骨格 / 骨密度 / 真無盲腸類 / 胸郭 / 強度 / 三次元筋骨格モデル / 運動機能の復元 / 古脊椎動物 / 姿勢復元 / 古生態 / 復元 / 脊椎動物 / 骨格 / 四足歩行 / 歩行様式 / 恐竜
Outline of Final Research Achievements

This study focused on exploring the relationship between skeletal morphology and locomotor strategies among tetrapods.
In the first project, 3D-images of squamate skeleton were used to reconstruct the outlier of the body, and then the center of mass positions (COM) were estimated. After the method seemed valid for estimating the COM from the 3D skeletal morphology, the method was applied to estimate the COM of ornithischian dinosaurs, and their limb postures were re-considered.
In the next project, the strength of the coracoid bone against bending force and the flapping ability were compared among birds.

Academic Significance and Societal Importance of the Research Achievements

本研究は、一義的には動物のもつ体の形態と運動への適応の関係について新たな知見をもたらしたものである。これらの成果は、絶滅動物がどのように生きていたかについて、より確からしさを伴う復元を行うための重要な根拠となる。そして、その成果の一端は博物館の展示や映像作品、絵画作品などに反映されるほか、それらに附随する科学的根拠を示した解説を通じて、科学に対する興味関心を引き出す一助となるであろう。

Report

(7 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (7 results)

All 2023 2022 2019 2018

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (4 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Coracoid strength as an indicator of wing-beat propulsion in birds2022

    • Author(s)
      Takumi Akeda, Shin-ichi Fujiwara
    • Journal Title

      Journal of Anatomy

      Volume: 242 Issue: 3 Pages: 436-446

    • DOI

      10.1111/joa.13788

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fitting unanchored puzzle pieces in the skeleton: appropriate 3D scapular positions for the quadrupedal support in tetrapods2018

    • Author(s)
      Shin-ichi Fujiwara
    • Journal Title

      Journal of Anatomy

      Volume: 232 Issue: 5 Pages: 857-869

    • DOI

      10.1111/joa.12778

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] How does the curvature of the upper beak bone reflect the overlying rhinotheca morphology?2018

    • Author(s)
      Yukine Urano, Kyo Tanoue, Ryoko Matsumoto, Soichiro Kawabe, Tomoyuki Ohashi, Shin-ichi Fujiwara
    • Journal Title

      Journal of Morphology

      Volume: 279 Issue: 5 Pages: 636-647

    • DOI

      10.1002/jmor.20799

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 四肢動物の前肢の機能形態学~古生態復元の指標づくりとその先2023

    • Author(s)
      藤原慎一
    • Organizer
      日本古生物学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Muscle moment arm as a useful tool to determine the limb posture of ceratopsian dinosaurs2019

    • Author(s)
      Fujiwara, Shin-ichi
    • Organizer
      The 1st Asian Paleontological Congress
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Propping on forelimbs carries a high risk of rib fractures in Tyrannosaurus (Dinosauria: Theropoda)2019

    • Author(s)
      Shin-ichi FUJIWARA, Konami ANDO
    • Organizer
      International Congress of Vertebrate Morphology
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Detecting the forelimb posture of extinct terrestrial vertebrate taxa using the 3D musculo-skeletal models2018

    • Author(s)
      Shin-ichi FUJIWARA
    • Organizer
      16th International Echinoderm Congress
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2024-01-30  

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