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Morphological function of zig-zag commissure in orthide brachiopods: biomechanical insights into adaptation and evolution

Research Project

Project/Area Number 16K17827
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Stratigraphy/Paleontology
Research InstitutionNiigata University

Principal Investigator

Shiino Yuta  新潟大学, 自然科学系, 准教授 (60635134)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2018: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords古生物 / 化石 / 古生代 / 進化 / 古生態 / バイオメカニクス / 適応 / 絶滅 / 流体力学 / 層位古生物 / 流体工学 / 地球科学 / 進化多様性 / 形態 / 機能形態学 / 適応放散 / 腕足動物
Outline of Final Research Achievements

It is known that orthide brachiopods have diversified through the Ordovician period as the dominant players in the Great Ordovician Biodiversification Event. Because a capability of filter feeding has not previously been discussed in this group, I demonstrated flow experiments using platystrophiide orthid models, one with and one without a zig-zag commissure.
Regardless of the presence or absence of the zig-zag commissure, the models generated vortices inside them, similar to those of spiriferide brachiopods. The velocity of vortices in the zig-zag model was slower than that in the smooth model, suggesting a fluid suppressive function of zig-zag commissure. Such a morphological function may result in a robust adaptation in a wide variety of fluidic environments.

Academic Significance and Societal Importance of the Research Achievements

従来,プラチストロフィア類の殻形態は,デボン紀に大繁栄した腕足動物スピリファー類の殻形態とよく似ており,遺伝的な関係性が示唆されてきた.本研究では,この形態的特徴に共通の生態表現型であったことを見出し,収斂進化によって得られた結果的な類似性であったことを初めて定量的に解明した.また,濾過摂食を担う触手冠の情報が欠如していたオルティス類について,実現可能な触手冠形態を流体力学的な視点から提示することに成功した.また,生物の機能形態的な進化に対する理解を深めるだけでなく,バイオミメティクスやバイオエンジニアリングの新領域として,過去に失われた太古の機能デザインを発掘する挑戦的な研究でもある.

Report

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

    (24 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results,  Acknowledgement Compliant: 2 results) Presentation (16 results) (of which Int'l Joint Research: 7 results,  Invited: 3 results) Book (2 results)

  • [Int'l Joint Research] 雲南省古生物学研究室, 雲南大学(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Museo Geominero(スペイン)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Active floating with buoyancy of pseudopodia vs passive floating by hydrodynamic drag force: A case study of the flat-shaped spumellarian radiolarian Dictyocoryne2019

    • Author(s)
      Ichinohe, R., Shiino, Y., Kurihara, T., Kishimoto, N.
    • Journal Title

      Paleontological Research

      Volume: 印刷中 Issue: 4 Pages: 236-236

    • DOI

      10.2517/2018pr023

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The passive spatial behaviour and feeding model of living nassellarian radiolarians: Morpho-functional insights into radiolarian adaptation2018

    • Author(s)
      Ichinohe, R., Shiino, Y., Kurihara, T.
    • Journal Title

      Marine Micropaleontology

      Volume: 140 Pages: 95-103

    • DOI

      10.1016/j.marmicro.2018.02.002

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Construction of recirculating flow tank with water pumps: insight into experimental palaeontology2016

    • Author(s)
      Tsuchida, T. and Shiino, Y.
    • Journal Title

      Science Reports of Niigata University. Series E, (Geology)

      Volume: 31 Pages: 83-90

    • NAID

      120006757826

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] How does flow recruit epibionts onto brachiopod shells? Insights into reciprocal interactions within the symbiotic framework.2016

    • Author(s)
      Shiino, Y. and Tokuda, Y.
    • Journal Title

      Palaeoworld

      Volume: 25 Issue: 4 Pages: 675-683

    • DOI

      10.1016/j.palwor.2016.04.001

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 腕足動物Eoplectodontaの3次元形態解析から読み解く成長戦略2019

    • Author(s)
      赤坂実優・椎野勇太
    • Organizer
      日本古生物学会2019年例会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 腕足動物ディスキナ類のもつ環境適応特性2019

    • Author(s)
      増永正大・椎野勇太
    • Organizer
      日本古生物学会2019年例会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Form and function of fossil brachiopods: Insights into evolutionary morphology2018

    • Author(s)
      Shiino, Y.
    • Organizer
      8th International Brachiopod Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A hydrodynamic approach to orthid brachiopod Vinlandostrophia ponderosa: Reevaluation of zig-zag function2018

    • Author(s)
      Shiino, Y. and Tsuchida, T.
    • Organizer
      8th International Brachiopod Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] スナガニの行動生態と海浜動態への応答様式2018

    • Author(s)
      小倉誠也・石崎美乃・高橋千絢・金子真弥・井村朱里・椎野勇太
    • Organizer
      石油技術協会春季講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ジグザグを持つ腕足動物Vinlandostrophia ponderosaの適応戦略2018

    • Author(s)
      椎野勇太・土田貴史
    • Organizer
      日本古生物学会2018年年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 表か裏か? CT画像からみた平板形放散虫の形態解析2018

    • Author(s)
      椎野勇太・栗原敏之・一戸凌・岸本直子・吉野隆・松岡篤
    • Organizer
      日本古生物学会2016年例会
    • Related Report
      2017 Research-status Report
  • [Presentation] パイゴープの穴:排泄物高速排泄システム2018

    • Author(s)
      池田裕香・椎野勇太
    • Organizer
      日本古生物学会2016年例会
    • Related Report
      2017 Research-status Report
  • [Presentation] Homeostatic spatial behaviour of nassellarian radiolarians: a likely feeding strategy2017

    • Author(s)
      Ichinohe, R., Shiino, Y., Kurihara, T.
    • Organizer
      InterRad XV
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Planktonic capability of discoid spumellarian radiolarians2017

    • Author(s)
      Ichinohe, R., Shiino, Y., Kurihara, T., Kishimoto, N.
    • Organizer
      InterRad XV
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Hydrodynamic functionalisation of brachiopod shells: insights into evolutionary morphology2017

    • Author(s)
      Shiino, Y.
    • Organizer
      InterRad XV
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Head or tail? Morphological analysis of the discoid spumellarian radiolarian Dictyocoryne2017

    • Author(s)
      Shiino, Y., Kurihara, T., Ichinohe, R., Kishimoto, N., Yoshino, T., Matsuoka, A.
    • Organizer
      InterRad XV
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 平板形態型放散虫Dictyocoryneの浮遊性能2017

    • Author(s)
      一戸凌・椎野勇太・栗原敏之
    • Organizer
      2017年日本プランクトン学会・日本ベントス学会合同大会
    • Related Report
      2017 Research-status Report
  • [Presentation] A biomechanical approach to understanding the morphological adaptations of fossil spiriferide brachiopods2016

    • Author(s)
      Shiino, Y.
    • Organizer
      The 22nd International Congress of Zoology
    • Place of Presentation
      沖縄コンベンションセンター,沖縄
    • Year and Date
      2016-11-14
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 受動的空間行動から読み解く放散虫ナセラリア類の採餌様式2016

    • Author(s)
      一戸凌・椎野勇太・栗原敏之
    • Organizer
      2016年日本ベントス学会・日本プランクトン学会合同大会
    • Place of Presentation
      熊本大学,熊本
    • Year and Date
      2016-09-07
    • Related Report
      2016 Research-status Report
  • [Presentation] 静水環境下における現生放散虫の姿勢と受動的空間行動2016

    • Author(s)
      一戸凌・椎野勇太・栗原敏之
    • Organizer
      日本古生物学会2016年年会
    • Place of Presentation
      福井県立大学・福井県立恐竜博物館,福井
    • Year and Date
      2016-06-24
    • Related Report
      2016 Research-status Report
  • [Book] 広辞苑を3倍楽しむ その22018

    • Author(s)
      岩波書店編集部(編)
    • Total Pages
      128
    • Publisher
      岩波書店
    • Related Report
      2017 Research-status Report
  • [Book] 見る目が変わる博物館の楽しみ方―地球・生物・人類を知る2016

    • Author(s)
      矢野興一・三河内彰子・三河内岳・椎野勇太・實吉玄貴・藤原慎一・折原貴道・鵜沢美穂子・皆木宏明・黒木真理・松本涼子・相川稔・松原始・佐野勝宏・鶴見英成・石井龍太
    • Total Pages
      435
    • Publisher
      ベレ出版
    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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