The Early Cretaceous paleobiogeography of belemnites in the Pacific

2012 Fiscal Year Final Research Report

• Project/Area Number: 23840002
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Stratigraphy/Paleontology
• Research Institution: Hokkaido University (2012); Hokkaido University of Education (2011)
• Principal Investigator: IBA Yasuhiro 北海道大学, 大学院・理学研究院, 助教 (80610451)
• Project Period (FY): 2011 – 2012
• Keywords: 白亜紀 / 古生物地理 / 頭足類

Research Abstract

Belemnites, an extinct group of cephalopods, flourished in Mesozoic oceans. The rich and continuous fossil record of belemnites offers the potential for understanding the evolutionary dynamics of nektonic biota and its environmental factors. This study reveals two major biogeographic changes in the Early Cretaceous belemnites in the Pacific; 1) Occurrence of pandemic distribution of Tethyan-type belemnites, which can be correlated with the beginning of the Mid-Cretaceous global warming, and 2) An enigmatic distribution pattern of the Barremian belemnite in the NW and NE Pacific,indicating an existence of the “Cretaceous North Pacific Gyre”.

Research Products

• [Journal Article] First record of Immanitas (Bivalvia, Hippuritida) from northern California, USA. (2013)
  • Author(s): Sano, S., Iba, Y., Skelton, P.W., Aguilar-Perez, J., Tanabe, K.
  • Journal Title: Caribbean Journal of Earth Sciences Volume: 45巻 Pages: 7-84
  • Peer Reviewed
• [Journal Article] 大分県東部に分布する下部白亜系小坂層の地質年代の再検討 (2012)
  • Author(s): 佐野晋一・伊庭靖弘・佐藤裕一郎・田中均
  • Journal Title: 福井県立恐竜博物館紀要 Volume: 11巻 Pages: 19-25
  • Peer Reviewed
• [Journal Article] Belemnites originated in the Triassic - A new look at an old group (2012)
  • Author(s): Iba, Y., Sano, S., Mutterlose, J., Kondo, Y.
  • Journal Title: Geology Volume: 40巻 Pages: 911-914
  • DOI: doi:10.1130/G33402.1
  • Peer Reviewed
• [Journal Article] First record of an Ea rly Barremian caprinid rudist from Japan -i mplications for the palaeobiogeography of theCaprinidae (Bivalvia) (2012)
  • Author(s): Sano, S., Skelton, P.W., Watarai, M., Iba, Y., Kondo, Y., Sato, Y.
  • Journal Title: Palaeontology Volume: 55 Pages: 843-851
  • DOI: doi:10.1111/j.1475-4983.2012.01156.x
  • Peer Reviewed
• [Journal Article] Neithea (Cretaceous pectinid) from no rthern California,and its biogeographic impli cations (2011)
  • Author(s): Iba, Y., Sano, S., Tanabe, K, A Tethyan b ivalve
  • Journal Title: Paleontological Research Volume: 15巻 Pages: 62-67
  • DOI: doi:10.2517/1342-8144-15.2.079
  • Peer Reviewed
• [Journal Article] First occurrence of Pictetia (Ammonoidea) from the Albian of Japan and its systematical implications.
  • Author(s): Hoffman, R., Iba, Y., Kawabe, F., Mutterlose, J.
  • Journal Title: Bulletin of Geosciences
  • DOI: doi10.3140/bull.geosci.1379
  • Peer Reviewed
• [Presentation] 岐阜県荘川地域御手洗層産ベレムナイト (2012)
  • Author(s): 佐野晋一・O.S. Dzyuba, 伊庭靖弘,伊左治鎭司,蜂矢喜一,北浦嗣豊
  • Organizer: 日本古生物学会2012年年会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2012-06-30
• [Presentation] 太平洋から再考するベレムナイト進化史 (2012)
  • Author(s): 伊庭靖弘
  • Organizer: 棚部一成教授退官記念ミニシンポ ジウム「パレオバイオロジー:生命進化史の解読」
  • Place of Presentation: 東京大学
  • Year and Date: 2012-03-08
• [Presentation] Belemn ite extinction and the origin of modern cephalopods 35 m.y. prior to the Cretace ous-Paleogene event (2011)
  • Author(s): Iba, Y., Mutterlose , J., Tanabe, K., Sano, S., Misaki, A., Terabe, K.
  • Organizer: 4th International S ymposium "Coleoid Cephalopods Through Time"
  • Place of Presentation: Natural HistoryMuseum, Stuttgart, Germany.
  • Year and Date: 2011-09-07
• [Presentation] Earliest Jurassic belemnites from Japan: A reassesment of coleoid radiati on (2011)
  • Author(s): Iba, Y., Sano, S., Kondo, Y., Mutterlo se, J.
  • Organizer: 4th International Symposium "Coleoid Cephalopods Through Time"
  • Place of Presentation: Natural History Museum, Stuttga rt, Germany.
  • Year and Date: 2011-09-07
• [Presentation] 北太平洋からみるベレムナイトの初期進化史 (2011)
  • Author(s): 伊庭靖弘 ・佐野晋一・近藤康生・Joerg Mutterlose
  • Organizer: 日本古生物学会2011年年会
  • Place of Presentation: 金沢大学
  • Year and Date: 2011-07-03
• [Presentation] 福井県九頭竜地域産ボレアル要素ベレムナイトCylindroteuthisについて (2011)
  • Author(s): 佐野晋一・伊庭靖弘・O.S.Dzyuba・蜂矢喜一郎・林常喜・水野吉昭・北浦嗣豊
  • Organizer: 日本古生物学会2011年年会
  • Place of Presentation: 金沢大学
  • Year and Date: 2011-07-02
• [Book] 項目:ベレムナイト,東大古生物学-化石からみる生命史 (2013)
  • Author(s): 伊庭靖弘
  • Total Pages: 271-276
  • Publisher: 東海大学出版会
• [Remarks]
  • URL: http://ibayasuhiro.com/Publications.html