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Dinosaur migration and their habitat environments in Japanese Cretaceous and its adjacent area

Research Project

Project/Area Number 11833003
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research InstitutionTOKYO GAKUGEI UNIVERSITY

Principal Investigator

MATSUKAWA Masaki  Tokyo Gakugei University, Dept. of Science Education, Associate Professor, 教育学部, 助教授 (30127914)

Co-Investigator(Kenkyū-buntansha) ITO Makoto  Chiba University, Dept. of Earth Sciences, Professor, 理学部, 教授 (10201930)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2000: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1999: ¥2,700,000 (Direct Cost: ¥2,700,000)
Keywordsdinosaur freeway / Cretaceous / river model / Tetori Group / dinosaurus / river channel deposits / inter-channel deposits / Yanji Group / 桑島層 / 恐竜 / 移動 / 生息環境 / 日本 / 下部白亜系 / 関門層群 / 化石群集
Research Abstract

There are possible two models of the "Dinosaur freeway" in East Asia, suggested dinosaur migration and/or settlement ; (1) River side model : dinosaurs migrated and/or settled along the river in Asian continent, and (2) Gnu model : dinosaurs seasonally migrated between southern Korean Peninsula and east China. This was similar to modern gnu migration. The purpose of the project is to verify these models and to study an environment of the dinosaur habitat on the dinosaur freeway.
We had the following results : (1) Theropod and ornithopod tracks from the Tetori Group are common in that from the Yanji Group, Far east China. This means dinosaurs walked along the fluvial valley between two areas. The environment of the Tetori Group shows sallow marine, reflect distributary bay and braided and meandering river environments. Based on facies change through time, the Tetori Group had transgression and regression phases. (2) We found out tracks of waterbirds from the Tu Cheg Zi Formation (Jurassic-Cretaceous boundary), Liaoning Province, China, that may be the oldest evidence of birds from China. The tracks suggest The presence of shorebird-like species in Liaoning region at the very beginning of the Cretaceous. (3) The Mosquero Creek dinosaur track site in New Mexico provides one of the best examples of social behavior among dinosaurs. The site is located on the southern part of the Cretaceous dinosaur freeway in North America. Our statistical analysis of trackway directions and speed estimates suggests that the 48 northerly oriented trackways can be resolved into subgroups based out differential orientations, but that speed variations are not significant. We also infer a preponderance of juveniles and subadults heading north and subadults and adults heading south. The concept of herd structure is examined and defined, ichnologically, as any orderly arrangement of trackway groupings within a larger group or herd.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 松川正樹,中田恒介: "手取層群の分布域南東部の層序と堆積環境の変遷-非海生軟体動物化石群集に基づいて"地質学雑誌. 105. 817-835 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 松川正樹,塩野谷奨,小荒井千人,新海拓也,中田恒介,松井哲也,青野宏美,小林典夫: "石川県白峰村東部の手取層群の層序と隣接する岐阜県北部の手取層群との比較"東京学芸大学紀要第4部門. 52. 67-76 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Matsukawa, M.and Nakada, K.: "Stratigraphy and sedimentary Environment of the TetoriGroupinits environment of the Tetori Group in its southeastern distribution based on nonmarine molluscan assemblages.."Jour. Geol. Soc. Japan. vol.105. 817-835 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Matsukawa, M., Shionoya, S., Koarai, K, Nakata, K., Shinkai, T., Matsui, T., Aono, H.and Kobayashi, N.: "Stratigraphy of the Tetori Group in the eastern part of the Shiramine Region, southeastern Ishikawa Prefecture, Japan and correlation with the adjacent Oshirakawa Region, northern Gifu Prefectute Japan."Bull. Tokyo Gakugei Univ., sect.4. vol.52. 67-76 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Matsukawa, M., Lockley, M.G.and Matsui, T.: "Trackway evidence of herd structure among ornithopod dinosaurs from the Cretaceous Dakota Group of northeastern New Mexico, U.S.A."Ichnos. (in submitted).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 松川正樹,中田恒介: "手取層群の分布域南東部の層序と堆積環境の変遷-非海生軟体動物化石群集に基づいて"地質学雑誌. 105巻・12号. 817-835

    • Related Report
      2000 Annual Research Report
  • [Publications] 松川正樹,塩野谷奨,小荒井千人,新海拓也,中田恒介,松井哲也,青野宏美,小林典夫: "石川県白峰村東部の手取層群の層序と隣接する岐阜県北部の手取層群との比較"東京学芸大学紀要 第4部門. 52集. 37-46

    • Related Report
      2000 Annual Research Report
  • [Publications] 松川正樹、中田恒介: "手取層群の分布中央部の層序と堆積環境の変遷-非海成軟体動物化石群集に基づいて-"地質学雑誌. 105・12. 817-835 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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