Paleoecological study on the adaptation and evolution of deep-water sessile fauna
| Project/Area Number |
26287131
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Stratigraphy/Paleontology
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| Research Institution | Nagoya University |
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Principal Investigator |
Oji Tatsuo 名古屋大学, 博物館, 教授 (50160487)
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| Co-Investigator(Kenkyū-buntansha) |
ジェンキンズ ロバート 金沢大学, 自然システム学系, 助教 (10451824)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2014: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
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| Keywords | 棘皮動物 / ウミユリ / ウミシダ / 捕食圧 / 海洋動物 / 化石化過程 / タフォノミー / 白亜系 / 再生 / 固着性 / 同位体 / 古生態 / ウミユリ類 / 機能形態 / 化学合成群集 / 深海動物 / 生態 / 進化 / 冷湧水 / 炭素同位体比 / メタン湧水 / 炭素同位体 |
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| Outline of Final Research Achievements |
Following paleoecological studies have been conducted about crinoids (Echinodermata), the representative deep-sea sessile animals. By examining morphology and carbon isotope of the skeletons, Cretaceous stalked crinoids from South Dakota and Hokkaido are concluded as a member of cold seep environment. By an experimental taphonomy and observation of postures of fossil stalked crinoids, a new method can be found about detecting existence and absence of musculature in the arms. About the predation pressure of comatulid crinoids received from their predators, it is successfully found that quantitative data could be obtained and compared by measuring the frequency of regenerated arms of these crinoids form northwestern Pacific, northeastern Pacific and north Atlantic.
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Report
(5 results)
Research Products
(17 results)
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[Presentation] Methane seep crinoid from the Upper Campanian of USA possesses peculiar morphological adaptation to a chemosynthetic lifestyle2016
Author(s)
Oji, T., Brezina, J., Landman, N.H., Kato, M., Larson, N., Hunter, A.
Organizer
9th European Conference on Echinoderms
Place of Presentation
Sopot, Poland
Year and Date
2016-09-17
Related Report
Int'l Joint Research / Invited
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[Presentation] The penetrative trace fossil Arenicolites from the late Ediacaran of western Mongolia2014
Author(s)
Oji, T., Dornbos, S.Q., Hasegawa, H., Gonchigdorj, S., Mochizuki, T.
Organizer
4th International Palaeontological Congress
Place of Presentation
Mendoza, Argentina
Year and Date
2014-09-30 – 2014-10-03
Related Report
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