Origin of Orsten-type fossil Lagerstaetten
Project/Area Number |
24340129
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Stratigraphy/Paleontology
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Research Institution | Kyushu University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
TANAKA Gengo 熊本大学, 沿岸域環境科学教育センター, 特任准教授 (50437191)
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Project Period (FY) |
2012-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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Keywords | 化石鉱脈 / オルステン / 軟体部の3D保存 / タフォノミー / アンモノイド / 軟体部の3D保存 / 層位・古生物学 / 化石 / アンモナイト / オルステン型化石鉱脈 / 介形虫 / 完新統コア / 3D保存 / 糞粒ペレット |
Outline of Final Research Achievements |
An Orsten-type fossil Lagerstaetten is an extraordinary case of detailed three-dimensional preservation of the soft parts of minute animal carcasses replaced by calcium phosphate. Detailed observation revealed that the phosphorus was mostly concentrated in the fecal pellets around the carcasses, and that the minute animal carcasses preserved in such “cesspools” were exceptionally phosphatized during early diagenesis owing to local depositional conditions, i.e., the high phosphorus levels of the accumulated fecal pellets. Allied modes of fossil preservation are now discovered from several places, e.g., the Quaternary boring cores in Japan. These suggest that the Orsten-type Lagerstaetten are not peculiar to Cambrian age but general phenomena in various ages and places, in which fecal pellets are locally accumulated as phosphorus source.
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Report
(5 results)
Research Products
(32 results)
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[Journal Article] Vision in a Middle Ordovician trilobite eye.2015
Author(s)
Tanaka, G., Schoenemann, B., Hariri, K.E., Ono, T., Clarkson, E., and Maeda, H.
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Journal Title
Palaeogeography, Palaeoclimatology, Palaeoecology
Volume: 433
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Mineralized rods and cones suggest colour vision in a 300 Myr-old fossil fish2014
Author(s)
Tanaka, G., Parker, A.R., Hasegawa, Y., Siveter, D.J., Yamamoto, R., Miyashita, K., Takahashi, Y., Ito, s., Wakamatsu, K., Mukuda, T., Matsuura, M., Tomikawa, K., Furutani, M., Suzuki, K., and Maeda, H.
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Journal Title
Nature Communications
Volume: 5
Issue: 1
Pages: 5920-5920
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Late Triassic ammonoid Sirenites from the Sabudani Formation in Tokushima, Southwest Japan, and its biostratigraphic and paleobiogeographic implications2013
Author(s)
Tsujino, Y., Shigeta, Y., Maeda, H., Komatsu, T., and Kusuhashi, N.
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Journal Title
Island Arc
Volume: 22
Issue: 4
Pages: 549-561
DOI
Related Report
Peer Reviewed
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[Journal Article] Early Permian ostracods from Mugi County, Gifu Prefecture, central Japan.2012
Author(s)
Tanaka, G., Ono, T., Yan, A., Ichida, M., and Maeda, H.
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Journal Title
Paleontological Research
Volume: 16
Issue: 2
Pages: 88-106
DOI
NAID
Related Report
Peer Reviewed
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[Presentation] フィールド古生物学2014
Author(s)
前田 晴良
Organizer
日本古生物学会2014年年会シンポジウム
Place of Presentation
九州大学総合研究博物館
Year and Date
2014-06-27 – 2014-06-29
Related Report
Invited
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