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Verification of 'Light Switch Theory' based on fossil evidences

Research Project

Project/Area Number 24540501
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Stratigraphy/Paleontology
Research InstitutionKumamoto University (2014)
Japan Agency for Marine-Earth Science and Technology (2013)
Gunma Museum of Natural History (2012)

Principal Investigator

TANAKA Gengo  熊本大学, 沿岸域環境科学教育研究センター, 特別研究員 (50437191)

Co-Investigator(Kenkyū-buntansha) MAEDA Haruyoshi  九州大学, 総合研究博物館, 教授 (10181588)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsカンブリア紀 / 眼の化石 / 光スイッチ説 / 例外的に保存の良い化石 / 節足動物 / 脊椎動物 / 軟体部保存 / 機能形態 / 光スイッチ / 国際情報交換 / 中国 / アメリカ / イギリス / 中枢神経系 / 例外的に保存のよい化石 / CTスキャン
Outline of Final Research Achievements

Cambrian Macroevolution was caused by intensification of evolution of eye of animals and their survival competition (Light Switch Theory = LST). Here, I was verified from fossil evidence about the LST. As a result, I found a homologous central nervous system with extant chelicerates from an apparently strange arthropoda having a pair of dumbbell-shaped compound eye in the head. Cambrian arthropods, as well as of the extant arthropods, has an eye with high resolution, it also suggested that a complex behavior was achieved by the central nervous system. This research supports the LST.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (21 results)

All 2015 2014 2013 2012 Other

All Journal Article (14 results) (of which Peer Reviewed: 14 results,  Acknowledgement Compliant: 3 results) Presentation (5 results) (of which Invited: 3 results) Remarks (2 results)

  • [Journal Article] Lower Triassic mixed carbonate and siliciclastic setting with Smithian–Spathian anoxic to dysoxic facies, An Chau basin, northeastern Vietnam2014

    • Author(s)
      Toshifumi Komatsu, Hajime Naruse, Yasunari Shigeta, Reishi Takashima, Takumi Maekawa, Huyen Dang, Tien Dinh, Phong Nguyen, Hung Nguyen, Gengo Tanaka and Masatoshi Sone
    • Journal Title

      Sedimentery Geology

      Volume: 300 Pages: 28-48

    • DOI

      10.1016/j.sedgeo.2013.10.009

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Exceptionally Preserved 450-Million-Year-Old Ordovician Ostracods with Brood Care2014

    • Author(s)
      David J. Siveter, Gengo Tanaka, Una Farrell, Markus Martin, Derek Siveter & Derek Briggs
    • Journal Title

      Current Biology

      Volume: 24 Issue: 7 Pages: 801-806

    • DOI

      10.1016/j.cub.2014.02.040

    • Related Report
      2014 Annual Research Report 2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Mineralized rods and cones suggest colour vision in a 300 Myr-old fossil fish2014

    • Author(s)
      Gengo Tanaka, Andrew Parker, Yoshikazu Hasegawa, David Siveter, Ryoichi Yamamoto, Kiyoshi Miyashita, Yuichi Takahashi, Shosuke Ito, Kazumasa Wakamatsu, Takao Mukuda, Marie Matsuura, Ko Tomikawa, Masumi Furutani, Kayo Suzuki and Haruyoshi Maeda
    • Journal Title

      Nature Communications

      Volume: 5 Pages: 5920-5920

    • NAID

      120007016768

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 北部ベトナムに分布するナンパンジャン海盆南部の下部三畳系2014

    • Author(s)
      小松俊文・前川 匠・重田康成・高橋 修・田中源吾・Dang Huyen
    • Journal Title

      化石

      Volume: 96号 Pages: 1-2

    • NAID

      110009864978

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Introduction of Olenekian (Early Triassic) stratigraphy and fossil assemblages in northern Vietnam2014

    • Author(s)
      Yasunari Shigeta, Toshifumi Komatsu, Huyen Tran Dang, Takumi Maekawa, Osamu Takahashi, Gengo Tanaka and Yukiyasu Tsutsumi
    • Journal Title

      National Museum of Nature and Science Monographs

      Volume: 45号 Pages: 1-3

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Ostracods of Olenekian (Early Triassic) stratigraphy and fossil assemblages in northern Vietnam2014

    • Author(s)
      Gengo Tanaka, Toshifumi Komatsu and Takumi Maekawa
    • Journal Title

      National Museum of Nature and Science Monographs

      Volume: 45号 Pages: 271-278

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crittendenia (Bivalvia) from the Lower Triassic Olenekian Bac Thuy Formation, An Chau Basin, Northern Vietnam2013

    • Author(s)
      Komatsu, T., Shigeta, Y., Dang, T. H., Dinh C. T., Maekawa, T., Tanaka, G.
    • Journal Title

      Paleontological Research

      Volume: 17 Issue: 1 Pages: 1-11

    • DOI

      10.2517/1342-8144-17.1.1

    • NAID

      10031151509

    • Related Report
      2013 Research-status Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Miocene ostracods from the Itahana Formation in the Tomioka district, Gunma Prefecture, central Japan: Paleoenvironmental significance and systematics2013

    • Author(s)
      Gengo Tanaka and Yoshikazu Hasegawa
    • Journal Title

      Paleontological Research

      Volume: 17 Issue: 2 Pages: 138-172

    • DOI

      10.2517/1342-8144-17.2.138

    • NAID

      10031173690

    • Related Report
      2013 Research-status Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] A new bivalved arthropod from the Devonian of Japan2013

    • Author(s)
      Gengo Tanaka, David Siveter and Mark Williams
    • Journal Title

      Paleontological Research

      Volume: 17 Issue: 3 Pages: 236-240

    • DOI

      10.2517/1342-8144-17.3.236

    • NAID

      10031178440

    • Related Report
      2013 Research-status Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evolution of antennules of cytheroidean ostracods (Crustacea)2013

    • Author(s)
      Gengo Tanaka
    • Journal Title

      Arthropod Structure & Development

      Volume: 42 Issue: 5 Pages: 395-405

    • DOI

      10.1016/j.asd.2013.03.006

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Chelicerate neural ground pattern in a Cambrian ‘great appendage’ arthropod2013

    • Author(s)
      Gengo Tanaka, Xianguang Hou, Xiaoya Ma, Gregory Edgecombe and Nicholas Strausfeld
    • Journal Title

      Nature

      Volume: 502 Issue: 7471 Pages: 364-368

    • DOI

      10.1038/nature12520

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evolution of anennules of cytheroidean ostracods (Crustacea)2013

    • Author(s)
      Gengo Tanaka
    • Journal Title

      Arthropod Structure & Development

      Volume: in press

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] 介形虫化石群からみた群馬県富岡市南西部に分布する中部中新統の特異な岩相の堆積環境2013

    • Author(s)
      地質学雑誌
    • Journal Title

      地質学雑誌

      Volume: 119 Pages: 17-24

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Middle Permian ostracods from the Akasaka Limestone, Gifu Prefecture, central Japan.2012

    • Author(s)
      Tanaka, G., Ono, T., Nishimura, T., and Maeda, H.
    • Journal Title

      Paleontological Research

      Volume: 16 Issue: 4 Pages: 289-306

    • DOI

      10.2517/1342-8144-16.4.289

    • NAID

      10031138470

    • Related Report
      2013 Research-status Report 2012 Research-status Report
    • Peer Reviewed
  • [Presentation] 平潟湾における縄文海進と地形環境の変遷について(予報)2015

    • Author(s)
      松島義章・田中源吾
    • Organizer
      文部科学省私立大学戦略的研究基盤形成支援事業「ヒト-資源環境系の歴史的変遷に基づく先史人類誌の構築」
    • Place of Presentation
      明治大学(東京)
    • Year and Date
      2015-03-15
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 有明海のナメクジウオ生息地に分布する介形虫群2015

    • Author(s)
      田中源吾・逸見泰久・島﨑英行
    • Organizer
      日本古生物学会
    • Place of Presentation
      豊橋市立自然史博物館(豊橋市)
    • Year and Date
      2015-01-31
    • Related Report
      2014 Annual Research Report
  • [Presentation] 光学的古生物学―視覚器官から紐解く古生物の生態―2014

    • Author(s)
      田中源吾
    • Organizer
      日本動物学会・九州沖縄植物学会・日本生態学会合同熊本例会
    • Place of Presentation
      熊本大学(熊本市)
    • Year and Date
      2014-11-22
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 介形虫類を中心とした節足動物の機能形態学的研究2014

    • Author(s)
      田中源吾
    • Organizer
      日本古生物学会
    • Place of Presentation
      f九州大学総合研究博物館(福岡市)
    • Year and Date
      2014-06-28
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 熊本県上天草市の弥勒層群より産出した介形虫化石2014

    • Author(s)
      田中源吾・小松俊文・鵜飼宏明・廣瀬浩司・長谷義隆・河野重範・逸見泰久
    • Organizer
      日本古生物学会
    • Place of Presentation
      f九州大学総合研究博物館(福岡市)
    • Year and Date
      2014-06-28
    • Related Report
      2014 Annual Research Report
  • [Remarks] 恐竜はどんな世界を見ていたのか? 3億年前の絶滅魚類に錐体細胞の化石を発見

    • URL

      http://www.kumamoto-u.ac.jp/whatsnew/sizen/20141224

    • Related Report
      2014 Annual Research Report
  • [Remarks] カンブリア紀の化石の神経系イメージングに成功~生物進化における中枢神経系の発達過程解明の可能性~

    • URL

      http://www.jamstec.go.jp/j/about/press_release/20131017/

    • Related Report
      2013 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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