A new species of Exbucklandia (Hamamelidaceae) from the Pliocene of China and its paleoclimatic significance

doi:10.1016/j.revpalbo.2008.12.015

	A new species of Exbucklandia (Hamamelidaceae) from the Pliocene of China and its paleoclimatic significance
	Wu, Jingyu 1,2; Sun, Bainian 1,2; Liu, Yu-Sheng (Christopher)3; Xie, Sanping 1; Lin, Zhicheng 1
	2009-05-01
发表期刊	REVIEW OF PALAEOBOTANY AND PALYNOLOGY
ISSN	0034-6667
卷号	155 期号:1-2 页码:32-41
摘要	Eight fossil leaves identified as Exbucklandia tengchongensis sp. nov. (Hamamelidaceae) were collected from the Pliocene Mangbang Formation in Tengchong, Yunnan Province, Southwest China. The fossil leaves are characterized by the overall rounded lamina with entire margin, actinodromous venation, and cyclocytic stomata, which suggest the affinity within the genus Exbucklandia, particularly with E. populnea. A survey on the cuticles of the sun and shade leaves of modern E. populnea indicates that the shade leaves generally possess more pronounced undulate anticli nal cell walls and a much lower stomatal density than the sun leaves. Two morphotypes, i.e. sun vs. shade types, of the fossil leaves were therefore recognized. The distribution of the modern Exbucklandia suggests that the genus lives under a warm climate with a mean annual temperature (MAT) from 13 degrees C to 27 degrees C and a mean annual precipitation (MAP) from 800 mm to 2500 mm. Hence, E. tengchongensis might also live under a similar climatic condition in the Pliocene. Leaf margin analysis on the Tengchong flora supports this result. The little change of Neogene MAT in Southwest China is therefore supported. (C) 2009 Elsevier B.V. All rights reserved.
关键词	Exbucklandia sun and shade leaves leaf cuticle paleoclimate Pliocene China
DOI	10.1016/j.revpalbo.2008.12.015
语种	英语
关键词[WOS]	SHADE LEAVES ; PHYLOGENETIC-RELATIONSHIPS ; NUCLEOTIDE-SEQUENCES ; CO2 CONCENTRATION ; STOMATAL DENSITY ; SUN ; GINKGO ; YUNNAN ; CHLOROPHYLL ; TEMPERATURE
资助项目	National Basic Research Program[2006CB701401] ; National Natural Science Foundation of China[40772012] ; National Natural Science Foundation of China[40502005] ; National Natural Science Foundation of China[40802008] ; Foundation of the State Key Laboratory of Paleobiology and Stratigraphy ; Nanjing Institute of Geology and Paleontology ; Chinese Academy of Sciences[063101] ; US National Science Foundation[EAR 0746105]
WOS研究方向	Plant Sciences ; Paleontology
WOS类目	Plant Sciences ; Paleontology
WOS记录号	WOS:000266186900004
项目资助者	National Basic Research Program ; National Natural Science Foundation of China ; Foundation of the State Key Laboratory of Paleobiology and Stratigraphy ; Nanjing Institute of Geology and Paleontology ; Chinese Academy of Sciences ; US National Science Foundation
出版者	ELSEVIER SCIENCE BV
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/288
专题	中国科学院南京地质古生物研究所
通讯作者	Sun, Bainian
作者单位	1.Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China 2.Nanjing Inst Geol & Paleontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 3.E Tennessee State Univ, Dept Biol Sci, Don Sundquist Ctr Excellence Paleontol, Johnson City, TN 37614 USA
推荐引用方式 GB/T 7714	Wu, Jingyu,Sun, Bainian,Liu, Yu-Sheng ,et al. A new species of Exbucklandia (Hamamelidaceae) from the Pliocene of China and its paleoclimatic significance[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2009,155(1-2):32-41.
APA	Wu, Jingyu,Sun, Bainian,Liu, Yu-Sheng ,Xie, Sanping,&Lin, Zhicheng.(2009).A new species of Exbucklandia (Hamamelidaceae) from the Pliocene of China and its paleoclimatic significance.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,155(1-2),32-41.
MLA	Wu, Jingyu,et al."A new species of Exbucklandia (Hamamelidaceae) from the Pliocene of China and its paleoclimatic significance".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 155.1-2(2009):32-41.