Early diversification of early Cretaceous Angiosperms in Mongolia

蒙古早白垩世被子植物的早期多样化

• 批准号: 21405010
• 负责人: TAKAHASHI Masamichi
• 金额: $ 12.4万
• 依托单位: Niigata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21405010/
• 关键词: 白亜紀; 被子植物; 初期進化; 小型炭化化石; モンゴル; 炭素同位体比; 古気候; 大型加速器; 炭素同位体

We performed field trips of Cretaceous sediments in Mongolia for five times during 2009 to 2011. The main localities are Baganuur, Khuren Dukh, Tevshiin Govi, Tugrug, Shivee Ovoo, Shine Khudak, Bayan and Erhert in southeastern side of Govi desert. The members are from Mongolian Paleontological Center, Yale University, Chicago Botanical Garden, Kanazawa University and Niigata University. We present preliminary results on the Tevshiin-Govi locality, which is a small opencast lignite mine, southwest of Ulaanbaatar. At several levels in the mine, mummified fossil plants occur matted together in compressed, lignitic, but otherwise very little altered deposits that are dominated by linear leaves of several different kinds. Cuticular details are well-preserved and reproductive structures are diverse, informative and common. Preliminary study indicates the presence of at least a dozen fossil seedplants represented by a large number of dispersed plant organs. We also performed a field survey in Malaysia with Prof. Lee, Malay University, to compare with theresults from Mongolia.

在2009年至2011年期间，我们在蒙古进行了五次白垩纪沉积物的野外旅行。主要地区是Baganuur，Khuren Dukh，Tevshiin Govi，Tugrug，Shivee Ovoo，Shine Khudak，Shine Khudak，Bayan，Bayan和Erhert，在Govi沙漠的东南侧。成员来自蒙古古生物学中心，耶鲁大学，芝加哥植物园，卡纳泽大学和尼加塔大学。我们在Tevshiin-Govi地区提出了初步结果，该地区是Ulaanbaatar西南部的一个小型Opencast褐煤矿。在矿山的几个层次上，木乃伊化的化石植物在压缩的，木质的木质植物中一起发生，但否则几乎没有变化的沉积物以几种不同种类的线性叶子为主。表皮细节保存完好，生殖结构多样，内容丰富且常见。初步研究表明，至少存在大量分散的植物器官代表的十二个化石种子植物。我们还在马来西亚与马来大学李教授一起进行了一次现场调查，以与蒙古的特殊情况进行比较。

项目成果

Inner structure of Cretaceous fossil flower revealed by X-Ray Microtomography (XRMT)

X射线显微断层扫描（XRMT）揭示白垩纪化石花的内部结构

• 发表时间: 2010
• 期刊: SPring-8 Research Frontiers
• 作者: Takahashi;M
• 通讯作者: M

Microtomography analyses of fossil flowers from the Late Cretaceous of Georgia

乔治亚白垩纪晚期花卉化石的显微断层扫描分析

• 发表时间: 2010
• 作者: Herendeen;P. S. Takahashi;M.;Crane;P
• 通讯作者: P

Submillennial resolution carbon isotope stratigraphy across the Oceanic Anoxic Event 2 horizon in the Tappu section, Hokkaido, Japan.

日本北海道塔布地区海洋缺氧事件 2 地平线的亚千年分辨率碳同位素地层。

• 发表时间: 2011
• 期刊: Palaeogeography Palaeoclimatology Palaeoecology
• 影响因子: 3
• 作者: Nemoto;T. and Hasegawa;T.
• 通讯作者: T.

Glandulocalyx upatoiensis, a fossil flower of Ericales (Actinidiaceae/Clethraceae)

Glandulocalyx upatoiensis，杜鹃花目（猕猴桃科/Clethraceae）的化石花

• 发表时间: 2012
• 期刊: Annals of Botany
• 影响因子: 4.2
• 作者: Schonenberger1;J.;von Balthazar;M.,;Takahashi; M.;Xiao;X.;Crane;P. R.;and Herendeen P
• 通讯作者: and Herendeen P

Glandulocalyx upatoiensis, a fossil flower of Ericales (Actinidiaceae/Clethraceae) from the Late Cretaceous (Santonian) of Georgia

Glandulocalyx upatoiensis，来自乔治亚州白垩纪晚期（桑托尼亚）的杜鹃花目（猕猴桃科/Clethraceae）花化石

• 发表时间: 2012
• 期刊: USA.、Annals of Botany
• 作者: Schonenberger;J.;von Balthazar;M.;Takahashi;M.、Xiao;X.;Crane;P.R. and Herendeen P
• 通讯作者: P.R. and Herendeen P