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EARLY EVOLUTION OF PRIMITIVE ANGIOSPERMS IN CRETACEOUS

Research Project

Project/Area Number 12640683
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 系統・分類
Research InstitutionNIIGATA UNIVERSITY

Principal Investigator

TAKAHASHI Masamichi  NIIGATA UNIVERSITY, FACULTY OF SCIENCE, PROFESSOR, 理学部, 教授 (00154865)

Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2002: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2001: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2000: ¥1,100,000 (Direct Cost: ¥1,100,000)
KeywordsCRETACEOUS / ANGIOSPERMS / EARLY EVOLUTION / MESOFOSSILS / PALAEOBOTANY / CORNACEAE / FUTABA GROUPS / FLOWER FOSSILS / クスノキ科
Research Abstract

A preliminary description is provided of a new assemblage of plant fossils(the Kamikitaba mesofossil flora) from the Asamigawa Member of the Ashizawa Formation(lower Coniacian, Upper Cretaceous) exposed in Kamikitaba, Fukushima Prefecture, northeastern Honshu, Japan. The fossils are small, three-dimensional and charcoalified or lignitized(mesofossils) and yield exquisite structural details when studied with scanning electron microscopy. The Kamikitaba assemblage comprises the first record of this style of fossil plant preservation from the Cretaceous of eastern Asia. The flora complements and extends current knowledge of Cretaceous fossil plants from Japan and provides a basis for comparison with similar mesofossil assemblages from eastern North America and Europe. The fossil assemblage contains well-preserved angiosperm flowers, fruits, seeds, leaf fragments and wood, as well as shoots, leaves, pollen cones, cone scales and seeds of conifers. Extant taxa that can be recognized provisionally include : Lauraceae, Hamamelidaceae, Fagaceae, Cornales, Combretaceae, and probably Ericales, Magnoliaceae, Nymphaeales and Taxodiaceae. Leaf and rachis fragments of ferns, sporangia with in situ spores, and megaspores also document the presence of Selaginellaceae and Schizaeaceae.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] Blackmore, S., Takahashi, M., Uehara, K.: "A preliminary phylogenetic analysis of sporogenesis in Pteridophytes"M.M.Harly, C.M.Morton and S.Blackinore (eds.) Pollen and Spores ; Morphology and Biology, Royal Botanical Gardens. 109-124 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takahashi, M., P.S.Herendeen, P.R.Crane: "Lauraceous fossil flower from the Kamikitaba Locality (Lower Coniacian Upper Cretaceous) in Northeastern Japan"J.Plant Res.. 114. 429-434 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takahashi, M., P.R.Crane, H.Ando: "Fossil megaspores of the Marsilealses and Selaginellales from the upper Coniacian to lower Santonian (Upper Cretaceous) of the Tamagawa Formation"Int.Jour.Plant Science.. 162. 431-439 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Nowicke, J.W., Takahashi, M: "Pollen morphology, exine structure and systematics of Acalyphoideae(Euphorobiaceae)Part 4."Rev.Palaeobot.Palynol. 121. 231-336 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takahashi, M., Crane, P.R., Manchester, S.R.: "Hironoia fusiformis gen.et sp.Nov ; a cornalean fruits from the Kamikitaba locality(Upper Cretaceous, Lower Coniacian) in northeastern Japan"J.Plant Res. 115. 463-473 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Blackmore, S., Takahashi, M., Uehara, K.: "2000.A preliminary phylogenetic analysis of aporogenesis in Pteridophytes."Pollen and Spores ; Morphology and Biology, (M.M.Harley, C.M.Morton and S.Blackinore (eds))(Royal Botanic Garden, Kew.). 109-124 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takahashi, M., P.S.Herendeen, P.R.Crane: "Lauraceous fossil flower from the Kamikitaba Locality(Lower Conianican ; Upper Cretaceous) in Northeastern"Japan.J.Plant Res.. 114. 429-434 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takahashi, M.P.R.Crane, H.Ando.Fossil: "Megaspores of the Marsileales and Selaginellales from the upper Coniacian to lower Santonian(Upper Cretaceous) of the Tamagawa Formation(Kuji Group) in northeastern Japan."Int.Jour.Plant Sci.. 162. 431-439 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Nowicke, J.W., Takahashi.M.: "Pollen morphology, exine structure and systematics of Acalyphoideae(Euphorbiaceae), Part 4, Tribes Acalypheae pro parte and discussion and summary of the complete subfamily."Rev.Paleobot.Palynol.. 121. 231-336 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takahashi.M., Crane, P.R., Manchester, S.: "R Hironoia fusiformis gen.et sp.nov. ; a cornalean fruit from the Kamikitaba locality(Upper Cretaceous, Lower Coniaceian) in northeastern Japan."J.Plant Res.. 115. 463-473 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takahashi, M., Pater R.Crane, S.R.Manchester: "Hironoia fusiformis gen. et sp. nov. : a cornalean fruit from the Kamikitaba locality (Upper Cretaceous, Lower Coniaceian) in northeastern Japan"Journal of Plant Research. 115. 463-473 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Nowicke, J.W., Takahashi, M.: "Pollen morphology, exine structure and systematics of Acalyphoideae (Euphorbiaceae), Part 4,"Review of Paleobotany and Palynology. 121. 231-336 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Takahashi, M., Herendeen, P.R., Peter R.Crane: "Lauraceous fossil flower from the Kamikitaba Locality(Lower Coniacian, Upper Cretaceous) in northeastern Japan"Journal of Plant Research. 114. 429-434 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Blackmore,S.Takahashi,M.and Uehara,K: "A preliminary phylogenetic analysis of sporogenesis in Pteridophytes."Pollen and Spores ; Morphology and Biology, Harley, C.M.Morton and S.Blackmore (eds.).. 109-124 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Takahashi,Nowicke,J.W.,G.L.Webster,S.S.Orli and S.Yankowski: "Pollen morphology, exine structure and systematics of Acalyphoideae (Euphorbiaceae)"Rev.Paleobot.Palynol.. 110. 1-66. (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Takahashi,P.R.Crane and H..Ando: "Fossil megaspores of the Marsileales and Selaginellales from the Coniacian to Santonian (upper Cretaceous) of the Tamagawa Formation in northeastern Japan"Int.Jour.Plant Sci. (In press). (2001)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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