Diet evolution of theropods dinosaurs and its implication to the origin of birds

• Project/Area Number: 24540494
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Stratigraphy/Paleontology
• Research Institution: Hokkaido University
• Principal Investigator: KOBAYASHI Yoshitsugu 北海道大学, 学内共同利用施設等, 准教授 (70400033)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 化石 / 進化 / 国際情報交換

Outline of Final Research Achievements

This study focuses on the diet evolution of theropods dinosaurs and its implication to the origin of birds. The evolution of herbivory in theropod dinosaurs is a key to understand the shift from non-avian to avian dinosaurs. My study suggests that the diversity of herbivory in theropods is greater than previously thought, and the extremities are therizinosaurs and ornithomimosaurs. Therizinosaurs developed more efficient oral and gastrointestinal digestion, whereas ornithomimosaurs had gastroliths and muscular stomach to become herbivory. This diversity in digestion may have had led to the diversity in species and ecology, which may a driving force to the bird origin.

Research Products

• [Journal Article] Resolving the long-standing enigmas of a giant ornithomimosaur Deinocheirus mirificus (2014)
  • Author(s): Lee, Y., Barsbold, R., Currie, P., Kobayashi, Y., Lee, H., Godefroit, P., Escuillie, F., and Chinzorig, T.
  • Journal Title: Nature Volume: 515 Issue: 7526 Pages: 257-260
  • DOI: 10.1038/nature13874
  • Peer Reviewed
• [Journal Article] Herd structure in Late Cretaceous polar dinosaurs: a remarkable new dinosaur tracksite, Denali National Park, Alaska, USA (2014)
  • Author(s): Fiorillo, A. R., Hasiotis, S. T., and Kobayashi, Y.
  • Journal Title: Geology Volume: 42 Pages: 719-722
  • Peer Reviewed
• [Journal Article] Osteohistological variation in growth marks and osteocyte lacunar density in a theropods dinosaur (Coelurosauria: Ornithomimidae). (2014)
  • Author(s): Cullen, T. M., Evans, D. C., Ryan, M. J., Currie, P. J., and Kobayashi, Y.
  • Journal Title: BMC Evolutionary Biology Volume: 14 Pages: 231-244
  • Peer Reviewed
• [Journal Article] Convergences and trends in the evolution of the archosaur pelvis (2014)
  • Author(s): Iijima, M. and Kobayashi, Y.
  • Journal Title: Paleobiology Volume: 40 Pages: 608-624
  • Peer Reviewed
• [Journal Article] Pterosaur tracks from the Lower Cantwell Formation (Campanian-Maastrichtian) of Denali National Park, Alaska, USA, with comments about landscape heterogeneity and habit preferences. (2014)
  • Author(s): Fiorillo, A. R., Kobayashi, Y., McCarthy, P. J., Wright, T. C., Tomsich, C., S.
  • Journal Title: Historical Biology Volume: 1 Issue: 6 Pages: 1-12
  • DOI: 10.1080/08912963.2014.933213
  • Peer Reviewed
• [Journal Article] Post-natal parental care in a Cretaceous diapsid from northeastern China. (2014)
  • Author(s): Lu, J., Kobayashi, Y., Deeming, D. C., and Liu, Y.
  • Journal Title: Geosciences Journal Volume: 1 Issue: 2 Pages: 1-8
  • DOI: 10.1007/s12303-014-0047-1
  • Peer Reviewed
• [Journal Article] Theropod tracks from the Lower Cantwell Formation (Upper Cretaceous) of Denali National Park, Alaska, USA with comments on theropod diversity in an ancient, high-latitude terrestrial ecosystem. (2014)
  • Author(s): Fiorillo, A. R., Contessi, M., and Kobayashi, Y.
  • Journal Title: Bulletin of New Mexico Museum of Natural History and Science Volume: 1 Pages: 429-439
  • Peer Reviewed
• [Journal Article] An Ornithomimid (Dinosauria) Bonebed from the Late Cretaceous of Alberta, with Implications for the Behavior, Classification, and Stratigraphy of North American Ornithomimids (2013)
  • Author(s): Thomas M. Cullen, Michael J. Ryan, Claudia Schroder-Adams, Philip J. Currie, Yoshitsugu Kobayashi
  • Journal Title: PlosOne Volume: vol 8, issue 3 Issue: 3 Pages: 1-9
  • DOI: 10.1371/journal.pone.0058853
  • Peer Reviewed
• [Journal Article] An Unusual Basal Therizinosaur Dinosaur with an Ornithischian Dental Arrangement from Northeastern China (2013)
  • Author(s): Hanyong Pu, Yoshitsugu Kobayashi, Junchang Lu;, Li Xu, Yanhua Wu, Huali Chang, Jiming Zhang, Songhai Jia
  • Journal Title: PlosOne Volume: vol 8, issue 5 Issue: 5 Pages: 1-19
  • DOI: 10.1371/journal.pone.0063423
  • Peer Reviewed
• [Journal Article] 鳥類の起源は植物食か肉食か？ (2013)
  • Author(s): 小林快次
  • Journal Title: 化学と生物 Volume: vol. 52, no. 2 Pages: 127-130
  • NAID: 130004808949
  • Peer Reviewed
• [Journal Article] 北米初の羽毛恐竜化石発見：翼の進化解明 (2013)
  • Author(s): 小林快次
  • Journal Title: 生物の科学 遺伝 Volume: 5月号 Pages: 378-384
  • NAID: 40019687993
• [Journal Article] Feathered non-avian dinosarus from North America provide insight into wing origins. (2012)
  • Author(s): Zelenitsky, D. K., Therrien, F., Erickson, G. M., DeBuhr, C. L., Kobayashi, Y., Eberth, D. A., Hadfield, F.
  • Journal Title: Science Volume: 338 Issue: 6106 Pages: 510-514
  • DOI: 10.1126/science.1225376
  • Peer Reviewed
• [Journal Article] Statistical approach for classification of dinosaur eggs from the Heyuan Basin at the northeast of Guangdong Province. (2012)
  • Author(s): Tanaka, K., Lu, J., Liu Y., Huang Z., Kobayashi, Y., Dong, H., Darla K. Zelenitsky, D. K.
  • Journal Title: Acta Geologica Sinica Volume: 86 Pages: 294-303
  • Peer Reviewed
• [Journal Article] New sedimentological, palaeobotanical, and dinosaur ichnological data on the palaeoecology of an unnamed Late Cretaceous rock unit in Wrangell-St. Elias National Park and Preserve, Alaska, USA. (2012)
  • Author(s): Fiorillo, A.R., Adams, T. L., Kobayashi, Y
  • Journal Title: Cretaceous Research Volume: 291 Pages: 291-299
  • DOI: 10.1016/j.cretres.2012.04.013
  • Peer Reviewed
• [Presentation] モンゴルの上部白亜系ネメグト層のオルニトミモサウルス類 (2015)
  • Author(s): 小林快次
  • Organizer: 日本古生物学会
  • Place of Presentation: 豊橋市自然史博物館（愛知県豊橋市）
  • Year and Date: 2015-01-30 – 2015-02-01
  • Invited
• [Presentation] 大阪府岸和田市の中部更新統より産出したキシワダワニ（ワニ類：トミストマ亜科）の分類学的位置について (2015)
  • Author(s): 飯島正也，小林快次，樽野博幸，渡辺克典
  • Organizer: 日本古生物学会
  • Place of Presentation: 豊橋市自然史博物館（愛知県豊橋市）
  • Year and Date: 2015-01-30 – 2015-02-01
• [Presentation] 北海道三笠市の上部白亜系鹿島層より産出したヘスぺロルニス目の系統解析 (2015)
  • Author(s): 田中公教，小林快次，栗原憲一，加納学，アンソニー・フィオリロ
  • Organizer: 日本古生物学会
  • Place of Presentation: 豊橋市自然史博物館（愛知県豊橋市）
  • Year and Date: 2015-01-30 – 2015-02-01
• [Presentation] 米国ユタ州で発見された下部白亜系シダー・マウンテン層の竜脚類の研究とその意義 (2015)
  • Author(s): 吉田純輝，Kenneth Carpenter，小林快次.
  • Organizer: 日本古生物学会
  • Place of Presentation: 豊橋市自然史博物館（愛知県豊橋市）
  • Year and Date: 2015-01-30 – 2015-02-01
• [Presentation] NEW ORNITHOMIMID FROM THE UPPER CRETACEOUS BAYANSHIREE FORMATION OF MONGOLIA (2014)
  • Author(s): Kobayashi, Y., Tsogtbaatar, K., Kubota, K., Lee, Y., Lee, H., and Barsbold, R.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2014-11-05 – 2014-11-08
• [Presentation] THE BRAIN OF DEINOCHEIRUS MIRIFICUS, A GIGANTIC ORNITHOMIMOSAURIAN DINOSAUR FROM THE CRETACEOUS OF MONGOLIA (2014)
  • Author(s): Lauters, P., Lee, Y., Barsbold, R., Currie, P., Kobayashi, Y., Escuillié, F., Godefroit, P.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2014-11-05 – 2014-11-08
• [Presentation] PHYLOGENETIC POSITION OF A NEW HESPERORNITHIFORM FROM THE UPPER CRETACEOUS OF HOKKAIDO, JAPAN (2014)
  • Author(s): Tanaka, T., Kobayashi, Y., Kurihara, K., Kano, M., Fiorillo, A.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2014-11-05 – 2014-11-08
• [Presentation] COMPARISON OF THE ENDOCRANIAL MORPHOLOGY OF THE NODOSAURID PAWPAWSAURUS AND ANKYLOSAURIDS FROM NORTH AMERICA AND MONGOLIA, WITH COMMENTS ON THE PRESENCE OF THE FLOCCULUS IN THE BRAIN OF NON-THEROPOD DINOSAURS (2014)
  • Author(s): Paulina Carabajal, A., Lee, Y., Jacobs, L., Kobayashi, Y., Currie, P.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2014-11-05 – 2014-11-08
• [Presentation] PHYLOGENETIC STATUS OF A NEW TOMISTOMINE FROM JAPAN AND CROCODYLIAN RESPONSE TO PLEISTOCENE CLIMATE CHANGE (2014)
  • Author(s): Furui, S., Iijima, M., Kobayashi, Y., Taruno, H.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2014-11-05 – 2014-11-08
• [Presentation] A NEW OVIRAPTORID DINOSAUR (DINOSAURIA: OVIRAPTOROSAURIA) FROM THE LATE CRETACEOUS OF SOUTHERN CHINA AND ITS PALEOGEOGRAPHICAL IMPLICATIONS (2014)
  • Author(s): Lu, J., Kobayashi, Y., Pu, H., Chang, H., Zhang, Y., Shang, Y., Liu, D.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2014-11-05 – 2014-11-08
• [Presentation] VARIATION IN INTRA- AND INTER-INDIVIDUAL OSTEOCYTE LACUNAR DENSITY IN A THEROPOD DINOSAUR (COELUROSAURIA: ORNITHOMIMIDAE) (2014)
  • Author(s): Cullen, T., Evans, D., Ryan, M., Kobayashi, Y., and Currie, P.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2014-11-05 – 2014-11-08
• [Presentation] THE FIRST CROCODILIAN TRACKWAY FROM THE UPPER CRETACEOUS BAYANSHIREE FORMATION OF MONGOLIA (2014)
  • Author(s): Lee, Y., Lee, H., Kobayashi, Y., Paulina Carabajal, A., Barsbold, R., Fiorillo, A.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2014-11-05 – 2014-11-08
• [Presentation] FIRST 3D RECONSTRUCTION OF THE ENDOCRANIAL MORPHOLOGY OF THE MONGOLIAN ANKYLOSAURIDS TARCHIA AND TALARURUS BASED ON CT SCANS (2014)
  • Author(s): Paulina C. A., Lee, Y., Kobayashi, Y., Lee, H., and Currie P. J.
  • Organizer: 4th International Palaeontological Congress
  • Place of Presentation: Mendoza, Argentina
  • Year and Date: 2014-09-23 – 2014-10-03
• [Presentation] 米国アラスカ州から発見された恐竜メガトラックサイト： 極圏恐竜行動についての意義 (2014)
  • Author(s): Anthony Fiorillo，小林快次，Stephen Hasiotis
  • Organizer: 日本古生物学会
  • Place of Presentation: 兵庫県立人と自然の博物館（兵庫県）
• [Presentation] モンゴルから初めて発見された恐竜営巣地による テリジノサウルス類の巣行動の解明 (2014)
  • Author(s): 小林快次，イユンナム，リンチェンバルズボルド，ダーラ ザレニトスキー，田中康平，イハンジェ，久保田克博
  • Organizer: 日本古生物学会
  • Place of Presentation: 兵庫県立人と自然の博物館（兵庫県）
• [Presentation] 北海道むかわ町穂別の上部白亜系函淵層から発見された ハドロサウルス科恐竜化石発見の報告 (2014)
  • Author(s): 小林快次，西村智弘，櫻井和彦，千葉謙太郎，田中康平，佐藤たまき
  • Organizer: 日本古生物学会
  • Place of Presentation: 兵庫県立人と自然の博物館（兵庫県）
• [Presentation] REANALYSIS OF NIPPONOSAURUS SACHALINENSIS (ORNITHOPODA: DINOSAURIA) FROM UPPER CRETACEOUS OF SOUTHERN SAKHALIN AND ITS PHYLOGENETIC STATUS WITHIN LAMBEOSAURINAE (2013)
  • Author(s): Takasaki, R., Kobayashi, Y., Chiba, K.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Westin Bonaventure Hotel, Los Angels, USA
• [Presentation] A ROBUST DESMOSTYLID FROM HOKKAIDO, JAPAN, AND THE FEEDING STYLE OF DESMOSTYLIDS (2013)
  • Author(s): Chiba, K., Kobayashi, Y., Jacobs, L., Graf, J., Tanaka, K.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Westin Bonaventure Hotel, Los Angels, USA
• [Presentation] NEW SAUROPOD FROM THE CEDAR MOUNTAIN FORMATION OF UTAH, USA (2013)
  • Author(s): Yoshida, J., Carpenter, K., Kobayashi, Y.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Westin Bonaventure Hotel, Los Angels, USA
• [Presentation] CONVERGENCES AND TRENDS IN THE EVOLUTION OF THE ARCHOSAUR PELVIS (2013)
  • Author(s): Iijima, M., Kobayashi, Y.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Westin Bonaventure Hotel, Los Angels, USA
• [Presentation] NEW SPECIMENS OF DEINOCHEIRUS MIRIFICUS FROM THE LATE CRETACEOUS OF MONGOLIA (2013)
  • Author(s): Lee, Y., Barsbold, R., Currie, P., Kobayashi, Y., Lee, H.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Westin Bonaventure Hotel, Los Angels, USA
• [Presentation] FIRST RECORD OF A DINOSAUR NESTING COLONY FROM MONGOLIA REVEALS NESTING BEHAVIOR OF THERIZINOSAUROIDS (2013)
  • Author(s): Kobayashi, Y., Lee, Y., Barsbold, R., Zelenitsky, D., Tanaka, K.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Westin Bonaventure Hotel, Los Angels, USA
• [Presentation] VERTEBRATE COPROLITES FROM THE GURVAN EREEN FORMATION (LOWER CRETACEOUS) IN TATAL, WESTERN MONGOLIA (2013)
  • Author(s): Sonobe, H., Kobayashi, Y., Lü, J., Barsbold, R., Chiba, K.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Westin Bonaventure Hotel, Los Angels, USA
• [Presentation] AN ISOLATED FEATHER IN AN AMBER FROM THE LATE CRETACEOUS OF NORTHEAST JAPAN (2013)
  • Author(s): Tanaka, T., Kobayashi, Y., Sasaki, K., Chiba, K.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: Westin Bonaventure Hotel, Los Angels, USA
• [Presentation] カナダ・アルバータ州南部産のオルニトミムス科の再検討 (2013)
  • Author(s): 小林快次
  • Organizer: 日本古生物学会
  • Place of Presentation: 横浜国立大学（横浜市）
• [Presentation] モンゴルの上部白亜系ネメグト層から発見されたオルニトミモサウルス類と胃石の進化 (2012)
  • Author(s): 小林快次
  • Organizer: 日本古生物学会
  • Place of Presentation: 名古屋大学（名古屋市）
• [Presentation] 中国遼寧省の下部白亜系義県層から発見されたテリジノサウルス類と食性適応の進化 (2012)
  • Author(s): 小林快次
  • Organizer: 日本古生物学会
  • Place of Presentation: 名古屋大学（名古屋市）
• [Presentation] A new tomistomine from the Osaka Group in Kishiwada City, Osaka Prefecture, Japan. (2012)
  • Author(s): Furui, S. and Kobayashi, Y.
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: University of North Calorina (USA)
• [Presentation] ORNITHISCHIAN DENTAL ARRANGEMENT IN A BASAL THERIZINOSAUR DINOSAUR FROM NORTHEASTERN CHINA (2012)
  • Author(s): Yoshitsugu KOBAYASHI, Junchang LÜ, Hanyong PU, Li XU, Yanhua WU
  • Organizer: Society of Vertebrate Paleontology
  • Place of Presentation: University of North Calorina (USA)
• [Book] 大人のための「恐竜学」 (2013)
  • Author(s): 小林快次 (監修), 土屋健 (著)
  • Total Pages: 216
  • Publisher: 祥伝社新書
• [Book] そして恐竜は鳥になった: 最新研究で迫る進化の謎 (2013)
  • Author(s): 小林快次 (監修), 土屋健 (著)
  • Total Pages: 144
  • Publisher: 誠文堂新光社
• [Book] ワニと恐竜の共存: 巨大ワニと恐竜の世界 (2013)
  • Author(s): 小林快次
  • Total Pages: 84
  • Publisher: 北海道大学出版会
• [Book] 最新版 恐竜の世界 Q&A (2013)
  • Author(s): 小林 快次 (監修)
  • Total Pages: 192
  • Publisher: 講談社
• [Book] 恐竜ウルトラチャンピオン (ふしぎ!びっくり!チャンピオンシリーズ) [大型本] (2013)
  • Author(s): ダレン ネイシュ (著), Darren Naish (原著), 上川 典子 (翻訳), 小林 快次（監訳）
  • Total Pages: 128
  • Publisher: 学研教育出版
• [Book] 大人の恐竜大図鑑 (2013)
  • Author(s): 土屋 健 (著), 小林快次 (監修), 藻谷亮介 (監修), 佐藤たまき (監修), ロバート・ジェンキンズ (監修), 小西卓哉 (監修), 平山廉 (監修), 大橋智之 (監修), 冨田幸光 (監修)
  • Total Pages: 111
  • Publisher: 洋泉社
• [Book] Science 2012 サイエンス誌に載った日本人研究者 (2013)
  • Author(s): 小林快次
  • Total Pages: 1
  • Publisher: American Association for the Advancement of Science