JaLCDOI 10.18926/ESR/49211
タイトル(別表記) The oldest fossil forest in Japan discovered from the Upper Triassic Nariwa Group, Okayama Prefecture, SW Japan -Implication for reconstruction of depositional environment and paleovegetation-
フルテキストURL esr_019_1_025_037.pdf
著者 湯川 弘一| 寺田 和雄| 孫 革| 鈴木 茂之|
抄録 Erect fossil stumps were found from the outcrop of the Upper Triassic Hinabata Formation, the uppermost part of the Nariwa Group at Hinabata, Nariwa-cho,Takahashi City, Okayama Prefecture, SW Japan. They are evidence of the oldest fossil forest in Japan. The Upper Triassic Nariwa Group is mostly composed of non-marine deposits except the marine Jito Formation and characterized by the abundance in plant fossils. The marine Jito Formation is characterized by occurrence of Norian Monotis ochotica. On the basis of detailed observation of the occurrence of erect fossil stumps, as well as sedimentary facies of fossil-bearing unit, the fossil forest was interpreted to have grown on the top of the natural-levee units. One of the erect fossil stumps was identified as Xenoxylon sp.
キーワード erect fossil stump fossil forest Nariwa Group Upper Triassic Xenoxylon
出版物タイトル Okayama University Earth Science Report
発行日 2012-12-26
開始ページ 25
終了ページ 37
ISSN 1340-7414
言語 Japanese
著作権者 © 2012 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
論文のバージョン publisher
NAID 120005232329