Morphological analysis of brains and nervous system of non-avian dinosaurs and birds.

2008 Fiscal Year Self-evaluation Report

• Project/Area Number: 18340162
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Stratigraphy/Paleontology
• Research Institution: Hokkaido University
• Principal Investigator: KOBAYASHI Yoshitsugu Hokkaido University, 総合博物館, 助教 (70400033)
• Project Period (FY): 2006 – 2009
• Keywords: 化石 / 進化

Research Abstract

脳や神経システムの構造とその進化に注目し、X 線CT スキャナで非破壊的な解析を行い鳥類の起源を探る。鳥類の起源は、飛翔の獲得が鍵になっているがその進化過程の追及は外部形態に現れる形質に基づいている。しかし、外部形態は進化速度が速い可能性が高く収斂の結果であることが多い。そこで、進化速度が比較的遅いと考えられ、生命の中すいである脳や神経システムの構造に着目し、鳥類の起源をたどる。

Research Products

• [Journal Article] Phylogenetic position of Ornithomimosauria in Coelurosauria with comments on the relationship of ornithomimosaurs and alvarezsaurids (2008)
  • Author(s): Kobayashi, Y.
  • Journal Title: Journal of Fossil Research 41 Pages: 25-32
  • Peer Reviewed
• [Journal Article] Olfactory acuity in theropods : palaeobiological and evolutionary implications (2008)
  • Author(s): Zelenitsky, D. K., Therrien, F., and Kobayashi, Y.
  • Journal Title: Proceedings of Royal Society of London,Series B. 276 Pages: 667-673
  • Peer Reviewed
• [Presentation] 演題「Endocranial anatomy of a primitive oviraptorosaur, Incisivosaurus gauthieri,(Theropoda : Dinosauria) (2008)
  • Author(s): Balanoff, A., Xu, X., Matsufune, Y., Kobayashi, Y., and Norell, M.
  • Organizer: 67^<th> Annual Meeting of Society of Vertebrate Paleontology
  • Place of Presentation: Texas, USA
  • Year and Date: 20081017-20
• [Presentation] 演題「A new basal ornithomimid (Dinosauria : Theropoda) from the Late Cretaceous in Henan Province of China」 (2008)
  • Author(s): Kobayashi, Y., Lu, J., Lee, Y., Xu, L. and Zhang, X.
  • Organizer: 68^<th> Annual Meeting of Society of Vertebrate Paleontology
  • Place of Presentation: Ohio,USA
  • Year and Date: 20081015-18
• [Book] 恐竜の復元 (2008)
  • Author(s): 小林快次
  • Total Pages: 191
  • Publisher: 学習研究社
• [Book] Big Bird Imitators : Ornithomimosaurs : p. 139 In T. R. Holtz and L. V. Rey with contributions by thirty-three of the world's leading paleontologists (2007)
  • Author(s): Kobayashi, Y.
  • Publisher: Dinosaurs : the most complete, up-to-date encyclopedia for dinosaur lovers of all ages.New York, Random House