The morphological analysis of brain and nervous systems of dinosaurs and the evolutionary process of the transition from non-avian dinosaurs to birds.

恐龙大脑和神经系统的形态分析以及从非禽类恐龙向鸟类过渡的进化过程。

• 批准号: 18340162
• 负责人: KOBAYASHI Yoshitsugu
• 金额: $ 11.55万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18340162/
• 关键词: 化石; 系統; 進化; 機能形態; 形態機能

This study provides informative data to elucidate the evolutionary processes of body and brain from non-avian dinosaurs to birds and the transition of these animals. Specifically, a part of this study focused on large scaled morphology, such as the olfactory bulb for smelling, which reveals the changes of life style and feeding behaviors. This perspective is important to understand the paleoecology and food chain during the Mesozoic and the competition of niches among these animals. Oviraptorosaurs is one of good examples for the transitional dinosaurs between non-avian dinosaurs and birds. In this study, we analyze the changes in body and brain morphology to discuss if oviraptorosaurs belong to birds or avian features in this group is convergent. We concludes that the latter because brain features are more like non-avian dinosaurs, showing complex history of thetransition between non-avian dinosaurs to birds. In the future study, we need to much smaller scale in terms of the structures of brain and nervous system, which will providemore information about the evolution of dinosaurs.

本研究为阐明从非鸟类恐龙到鸟类的体脑进化过程以及鸟类的过渡提供了翔实的资料。具体而言，本研究的一部分集中在大尺度的形态，如嗅觉的嗅球，揭示了生活方式和摄食行为的变化。这一观点对于理解中生代的古生态和食物链以及这些动物之间的生态位竞争具有重要意义。偷蛋龙是介于非鸟类恐龙和鸟类之间的过渡恐龙之一。本研究分析窃蛋龙的身体及脑的形态变化，以探讨窃蛋龙是否属于鸟类或鸟类的特徴在此族群中是否趋同。我们得出后者的结论是因为大脑特征更像非鸟类恐龙，显示了非鸟类恐龙向鸟类过渡的复杂历史。在未来的研究中，我们需要在更小的尺度上研究恐龙的大脑和神经系统的结构，这将为恐龙的进化提供更多的信息。

项目成果

New pterosaur tracks from the Hasandong Formation (Lower Cretaceous) of Hadong County, South Korea

• DOI: 10.1016/j.cretres.2007.05.004
• 发表时间: 2008-04-01
• 期刊: CRETACEOUS RESEARCH
• 影响因子: 2.1
• 作者: Lee, Yuong-Nam;Lee, Hang-Jae;Kobayashi, Yoshitsugu
• 通讯作者: Kobayashi, Yoshitsugu

Desmostylian and other marine mammal fossils from Alaska

来自阿拉斯加的 Desmostylian 和其他海洋哺乳动物化石

• 发表时间: 2010
• 作者: Louis Jacobs;Yosuke Nishida;Michael Polyson;Anthony Fiorillo;Yoshitsugu Kobayashi;Tasuro Ando;Hiroshi Sawamura;Thomas Adams;Yuri Kimura
• 通讯作者: Yuri Kimura

徹底図解100種類の巨大恐竜(ニュートン)

彻底解说100种巨型恐龙（牛顿）

• 发表时间: 2006
• 作者: Del Gaudio;P.;真鍋真・小林快次・斎木健一・長谷川卓・ケネス カーペンター
• 通讯作者: 真鍋真・小林快次・斎木健一・長谷川卓・ケネス カーペンター

New material of dsungaripterid pterosaurs(Reptilia : Pterosauria)from western Mongolia and its paleoecological implications.

蒙古西部准加里翼龙（爬行纲：翼龙）新材料及其古生态意义。

• 发表时间: 2009
• 期刊: Geological Magazine 146
• 作者: Lu;J.;Kobayashi;Y.;Lee;Y.;Ji;Q.
• 通讯作者: Q.

Ornithomimid materials from the Bayanshiree Formation at shine Us Khuduk, Dornogov', southeastern Mongolia

蒙古东南部多尔诺戈夫省巴彦郡地层的拟鸟龙材料

• 发表时间: 2009
• 作者: Kobayashi;Y.Kubota;K.;Barsbold;R.
• 通讯作者: R.