A new Drynaria (Polypodiaceae) from the Upper Pliocene of Southwest China

doi:10.1016/j.revpalbo.2010.11.011

	A new Drynaria (Polypodiaceae) from the Upper Pliocene of Southwest China
	Su, Tao 1,2; Jacques, Frederic M. B.3; Liu, Yu-Sheng (Christopher)4; Xiang, Jianying 1; Xing, Yaowu 1; Huang, Yongjiang 1,2; Zhou, Zhekun 1,5
	2011-02-01
发表期刊	REVIEW OF PALAEOBOTANY AND PALYNOLOGY
ISSN	0034-6667
卷号	164 期号:1-2 页码:132-142
摘要	A polypodiaceous fern, Drynaria callispora sp. nov., is described from the upper Pliocene Sanying Formation in western Yunnan Province, southwestern China. This species with well-preserved pinnae and in situ spores is the first convincing Drynaria fossil record. Detailed morphological investigation reveals that D. callispora is characterized by 1) pinnatifid fronds with entire-margined pinnae having straight or zigzag secondary veins; 2) finer venation showing void quadrangular areoles, but occasionally with one unbranched veinlet; 3) one row of circular son on each side of the strong primary vein; and 4) in situ spores with verrucate exospores elliptical in polar view and bean-shaped in equatorial view. A morphological comparison shows that D. callispora is significantly different from all the fossil species previously identified as drynarioids. A phylogenetic analysis of D. callispora supports that the fossil is closely related to D. sinica Diels and D. mollis Bedd., two extant species distributing in the Himalayas. The discovery of the new fern indicates that the genus Dynaria became diversified in its modern distribution region no later than the late Pliocene and had retained a similar ecology to that of many modern drynarioid ferns ever since. (C) 2010 Elsevier B.V. All rights reserved.
关键词	drynarioid in situ spores Pliocene Polypodiaceae Sanying Formation Yunnan China
DOI	10.1016/j.revpalbo.2010.11.011
语种	英语
关键词[WOS]	FERNS ; FOSSIL ; EVOLUTION ; GENUS
资助项目	National Natural Science Foundation of China, NSFC[41030212 30970206] ; National Natural Science Foundation of China, NSFC[40950110338] ; National Basic Research Program of China, 973 Program[2007CB411601] ; CAS[2009YB1-13] ; U.S. National Science Foundation[EAR-0746105]
WOS研究方向	Plant Sciences ; Paleontology
WOS类目	Plant Sciences ; Paleontology
WOS记录号	WOS:000288472200011
项目资助者	National Natural Science Foundation of China, NSFC ; National Basic Research Program of China, 973 Program ; CAS ; U.S. 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/332004/444
专题	中国科学院南京地质古生物研究所
通讯作者	Zhou, Zhekun
作者单位	1.Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Dept Palaeobot & Palynol, Nanjing Inst Geol & Paleontol, Nanjing 210008, Peoples R China 4.E Tennessee State Univ, Dept Biol Sci, Johnson City, TN 37614 USA 5.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla 666303, Peoples R China
推荐引用方式 GB/T 7714	Su, Tao,Jacques, Frederic M. B.,Liu, Yu-Sheng ,et al. A new Drynaria (Polypodiaceae) from the Upper Pliocene of Southwest China[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2011,164(1-2):132-142.
APA	Su, Tao.,Jacques, Frederic M. B..,Liu, Yu-Sheng .,Xiang, Jianying.,Xing, Yaowu.,...&Zhou, Zhekun.(2011).A new Drynaria (Polypodiaceae) from the Upper Pliocene of Southwest China.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,164(1-2),132-142.
MLA	Su, Tao,et al."A new Drynaria (Polypodiaceae) from the Upper Pliocene of Southwest China".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 164.1-2(2011):132-142.