A new Quercus species from the upper Miocene of southwestern China and its ecological significance
文献类型：期刊论文
| 作者 | Zhekun Zhou
|
| 刊名 | Review of Palaeobotany and Palynology
 |
| 出版日期 | 2013 |
| 卷号 | 93期号:x页码:99-109 |
| 关键词 | Quercus praedelavayi Quercus leaf morphology late Miocene Yunnan China |
| 中文摘要 | Quercus praedelavayi Xing Y.W. et Zhou Z.K. sp. nov. is reported from the upper Miocene of the Xianfeng flora in central Yunnan, southwestern China. The fossil species is identified based on the detailed leaf morphological and cuticular examinations. The primary venation is pinnate and the major secondary venation is craspedodromous with regular spacing. Stomata are anomocytic and occur on abaxial epidermis. Trichome bases are unicellular and multicellular. The new fossil species shows the closest affinity with Quercus delavayi, an extant species distributing in southwestern China. The responses of the functional leaf traits to the climate change were studied by comparing the leaf characters of fossil species and its nearest living relative. The stomatal density of Q. praedelavayi is higher than Q. delavayi, which suggests a lower palaeoatmospheric CO2 concentration during the late Miocene. The trichome base density of Q. praedelavayi is higher than the extant Q. delavayi. Considering the palaeoclimatic reconstruction of Xianfeng flora, it rejected the hypothesis that increase in trichome density is an adaptation to the drier environment |
| 公开日期 | 2013-05-02 |
| 源URL | [http://ir.xtbg.org.cn/handle/353005/4302]  |
| 专题 | 西双版纳热带植物园_古生态研究组 |
| 通讯作者 | Zhekun Zhou |
| 推荐引用方式 GB/T 7714 | Zhekun Zhou. A new Quercus species from the upper Miocene of southwestern China and its ecological significance[J]. Review of Palaeobotany and Palynology,2013,93(x):99-109. |
| APA | Zhekun Zhou.(2013).A new Quercus species from the upper Miocene of southwestern China and its ecological significance.Review of Palaeobotany and Palynology,93(x),99-109. |
| MLA | Zhekun Zhou."A new Quercus species from the upper Miocene of southwestern China and its ecological significance".Review of Palaeobotany and Palynology 93.x(2013):99-109. |
入库方式： OAI收割
来源：西双版纳热带植物园
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。