The plant fossils from the kaizara formation (Callovian, jurassic) of the tetori group in the Izumi district, fukui prefecture, central japan

被引:0
作者
Yamada, Toshihiro [1 ]
Uemura, Kazuhiko [2 ]
机构
[1] Kanazawa Univ, Grad Sch Nat Sci & Technol, Div Life Sci, Kanazawa, Ishikawa 9201192, Japan
[2] Natl Museum Nat & Sci, Dept Geol & Paleontol, Shinjuku Ku, Tokyo 1690073, Japan
关键词
Kaizara flora; Kaizara formation; Kuzuryu subgroup; Tetori group; Middle Jurassic; Tetori-type; flora;
D O I
10.2517/1342-8144(2008)12[1:TPFFTK]2.0.CO;2
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
The Middle Jurassic (Bathonian to Callovian) Kaizara flora is proposed herein for the plant fossil assemblage in the Kaizara Formation, Kuzuryu Subgroup, Tetori Group. In addition to Otozamites crassipinnatus sp. nov., twelve species are reported, including species of Equisetales, uncertain order of pteridosperms, Cycadeoideales, Cycadales, and Coniferales. Some species have very thick lamina, implying that the climate might include dry periods. All species found in the Kaizara flora are new to the Tetori Group. Therefore, the Tetori-type flora is restricted to post-Callovian stages in the Tetori Group.
引用
收藏
页码:1 / 17
页数:17
相关论文
共 92 条
[51]   Zircon U-Pb ages from tuff beds of the upper Mesozoic Tetori Group in the Shokawa District, Gifu Prefecture, central Japan [J].
Kusuhashi, Nao ;
Matsumoto, Ai ;
Murakami, Masaki ;
Tagami, Takahiro ;
Hirata, Takafumi ;
Iizuka, Tsuyoshi ;
Handa, Takeshi ;
Matsuoka, Hiroshige .
ISLAND ARC, 2006, 15 (03) :378-390
[52]  
Leckenby G., 1864, The Quarterly Journal of the Geological Society of London, V20, P74
[53]  
MAEDA S, 1960, J GEOLOGICAL SOC JAP, V67, P23
[54]  
MAEDA S, 1956, J GEOLOGICAL SOC JAP, V63, P225
[55]  
Maeda S., 1961, J GEOGR, V70, P65
[56]  
MAEDA SHIRO, 1961, JOUR COLL ARTS AND SCI CHIBA UNIV, V3, P369
[57]  
MAEDA SHIRO, 1952, JOUR GEOL SOC JAPAN, V58, P145
[58]   The Cretaceous Tetori biota in Japan and its evolutionary significance for terrestrial ecosystems in Asia [J].
Matsukawa, M ;
Ito, M ;
Nishida, N ;
Koarai, K ;
Lockley, MG ;
Nichols, DJ .
CRETACEOUS RESEARCH, 2006, 27 (02) :199-225
[59]  
Morris J., 1840, Transactions of Geological Society, V5, P289
[60]  
Nathorst A. G., 1886, SVERIGES GEOLOGISK C, V85, P83