A new Quercus species from the upper Miocene of southwestern China and its ecological significance
Xing, YW (Xing, Yaowu)[ 1,3,6 ]; Hu, JJ (Hu, Jinjin)[ 2,4 ]; Jacques, FMB (Jacques, Frederic M. B.)[ 1 ]; Wang, L (Wang, Li)[ 1 ]; Su, T (Su, Tao)[ 1 ]; Huang, YJ (Huang, Yongjiang)[ 2,4 ]; Liu, YS (Liu, Yu-Sheng (Christopher))[ 5 ]; Zhou, ZK (Zhou, Zhekun)[ 1,2 ]
2013-06-17
发表期刊REVIEW OF PALAEOBOTANY AND PALYNOLOGY
卷号193页码:99-109
文章类型期刊论文
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.

关键词Quercus Praedelavayi Quercus Leaf Morphology Late Miocene Yunnan China
DOI10.1016/j.revpalbo.2013.02.001
收录类别SCI
语种英语
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被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10026
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Zhou, ZK (Zhou, Zhekun)[ 1,2 ]
作者单位1.Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, China;
2.Key Laboratory of Biogeography and Biodiversity, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China;
3.Institute of Systematic Botany, University of Zürich, Zürich, 8008, Switzerland;
4.Graduate University of Chinese Academy of Sciences, Beijing, 100049, China;
5.Department of Biological Sciences, Box 70703, East Tennessee State University, Johnson City, TN 37614-1710, USA;
6.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS, Xi'an, China
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Xing, YW ,Hu, JJ ,Jacques, FMB ,et al. A new Quercus species from the upper Miocene of southwestern China and its ecological significance[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2013,193:99-109.
APA Xing, YW .,Hu, JJ .,Jacques, FMB .,Wang, L .,Su, T .,...&Zhou, ZK .(2013).A new Quercus species from the upper Miocene of southwestern China and its ecological significance.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,193,99-109.
MLA Xing, YW ,et al."A new Quercus species from the upper Miocene of southwestern China and its ecological significance".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 193(2013):99-109.
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