Early diversification of Angiosperms and Cretaceous fossil flowers using synchrotron radiation X-ray tomographic microscopy (SRXTM)
Project/Area Number |
24570097
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Biodiversity/Systematics
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Research Institution | Niigata University |
Principal Investigator |
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Project Period (FY) |
2012-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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Keywords | 被子植物 / 初期進化 / 小型化石 / 白亜紀 / 双葉層群 / 大型シンクロトロン / 真正双子葉類 / 花化石 / 上北迫植物化石群 / 久慈層群 / マイクロCT / 東南アジア / 3次元構造 / シンクロトロン / APS / Mesofossils / マイクロCT |
Outline of Final Research Achievements |
The Kamikitaba assemblage is the first record of mesofossil preservation from eastern Asia. Several fossil flowers and seeds are described from the Futaba Group in northeastern Japan and Tevshiin Govi in Mongolia. These mesofossils were analyzed using synchrotron-radiation X-ray microtomography (SRXTM) at the Advanced Photon Source.The fossil flowers are small, actinomorphic, bisexual, semi-inferior, and multicarpellate. The floral receptacle is cup shaped with a perigynous perianth consisting of several tepals inserted around the rim. The styles are short, becoming recurved with a ventrally decurrent stigma. The fruit type is a follicle. Seeds are ca. 10 per carpel, marginal, pendulous from the broad, oblique summit of the locule. The morphological features of these fossils indicate a possible relationship to Trochodendraceae.The recovery of these fossil suggests that the basal eudicot families in eastern Eurasia area during the Late Cretaceous.
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Report
(6 results)
Research Products
(29 results)
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[Journal Article] Proposal to treat the use of a hyphen in the name of a fossil-genus as an orthographical error2015
Author(s)
Herendeen,P.S., Anderson H. Batten DJ, Cantrill, Cleal C, Feist-Burkhardt S. Fensome RA, Head MJ , McLoughlin S, Skog JE, Takahashi M, Wicander M.
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Journal Title
Taxon
Volume: 64
Pages: 863-863
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Pinaceae-like reproductive morphology in Schizolepidopsis canicularis sp. nov. from the Early Cretaceous (Aptian-Albian) of Mongolia2013
Author(s)
Leslie, A. B., Glasspool, I., Herendeen P. S., Ichinnorov, N., Knopf, P. Takahashi, M. Crane, P. R.
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Journal Title
American Journal of Botany
Volume: 100
Pages: 2426-2436
Related Report
Peer Reviewed
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[Journal Article] Glandulocalyx upatoiensis, a fossil flower of Ericales (Actinidiaceae/Cethraceae) from the Late Cretaceous (Santonian) of Georgia, USA2012
Author(s)
Schonenberger, J., von Balthazar M., Takahashi, M., Xiao, X., Crane, P., and Herendeen, P.
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Journal Title
Annals of Botany
Volume: 109
Pages: 921-936
Related Report
Peer Reviewed
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[Presentation] Exceptionally well-preserved Early cretaceous seeds plants from Mongolia and their evolutionary significance2012
Author(s)
Herendeen, H., Crane, P., Takahashi, M., Leslie, A., Glasspool, A., Ichinnorov, N., Gombosuren, T. Nyamsambuu, O
Organizer
Botanical Society of America
Place of Presentation
Ohio University, USA
Related Report
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