An early Oligocene occurrence of the palaeoendemic genus Dipteronia (Sapindaceae) from Southwest China

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 古生态研究组

	An early Oligocene occurrence of the palaeoendemic genus Dipteronia (Sapindaceae) from Southwest China
	Ding, Wen-Na; Huang, Jian; Su, Tao; Xing, Yao-Wu; Zhou, Zhe-Kun
刊名	REVIEW OF PALAEOBOTANY AND PALYNOLOGY
	2018
卷号	249 期号:x 页码:16-23
关键词	Northern-hemisphere Climate Transition Tertiary Climates Tibetan Plateau Plant Endemism High-latitudes Eastern Asia Eocene Disjunctions America
ISSN号	0034-6667
英文摘要	Palaeoendemic plants, whose past geographical distribution was much larger than their present distribution ranges, play an important role in reconstructing biogeographical events, and in tracking floristic relationships among continents throughout geological time. Improving knowledge about their geographical histories helps to understand the evolution of biodiversity under palaeoenvironmental changes. Here, we report the first fossil record of Dipteronia from East Asia, namely Dipteronia brownii McClain et Manchester, based on diagnostic winged fruit remains from the Rupelian (c. 32 /- 1 Ma) of the Liihe Basin in southwestern China. The fossil species is characterized by (i) a samaroid mericarp, with an orbicular wing, (ii) a primary vein extending from the attachment scar, and ramifying into secondary and tertiary veins that radiate out from the seed body area and dichotomize toward the mericarp. Dipteronia was widely distributed in the Northern Hemisphere during the Palaeogene and is now endemic to central and southwestern China with two extant species. This new finding significantly expands the historical distribution of Dipteronia into China by the early Oligocene, and its present-day endemism is apparently the result of extirpation from North America and the higher latitudes of Asia associated with Cenozoic climatic changes. (C) 2017 Elsevier B.V. All rights reserved.
学科主题	Plant Sciences ; Paleontology
URL标识	查看原文
语种	英语
公开日期	2018-03-07
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/10794]
专题	西双版纳热带植物园_古生态研究组
推荐引用方式 GB/T 7714	Ding, Wen-Na,Huang, Jian,Su, Tao,et al. An early Oligocene occurrence of the palaeoendemic genus Dipteronia (Sapindaceae) from Southwest China[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2018,249(x):16-23.
APA	Ding, Wen-Na,Huang, Jian,Su, Tao,Xing, Yao-Wu,&Zhou, Zhe-Kun.(2018).An early Oligocene occurrence of the palaeoendemic genus Dipteronia (Sapindaceae) from Southwest China.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,249(x),16-23.
MLA	Ding, Wen-Na,et al."An early Oligocene occurrence of the palaeoendemic genus Dipteronia (Sapindaceae) from Southwest China".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 249.x(2018):16-23.