Discovery of organic connection of Chiropteris Kurr and Nystroemia Halle from Early Permian of western Henan, China

doi:10.1360/02wd0541

	Discovery of organic connection of Chiropteris Kurr and Nystroemia Halle from Early Permian of western Henan, China
	Wang, Jun (王军); Pfefferkorn, HW ; Sun, BN ; Liu, LJ (刘陆军)
	2003-10-01
发表期刊	CHINESE SCIENCE BULLETIN
ISSN	1001-6538
卷号	48 期号:20 页码:2248-2252
摘要	Nystroemia reniformis (Kawasaki) comb. nov. is proposed based on specimens showing organic connections between Chiropteris reniformis Kawasaki and Nystroemia pectiniformis Halle from the Lower Permian of Dengfeng in Henan. Vegetative leaf has a long petiole, reniformed, cordate at the base, entire or slightly undulate at the margin; veins are fine, bifurcating repeatedly and finally becoming reticulate and forming polygonal or rhomboidal meshes. Fertile shoot arises from bract axils. The form of the bract is identical to that of a vegetative leaf. Ovuliferous organ arises from the axil of leafy organ, or in other case, both ovuliferous and leafy organs irregularly arise from the axis of the fertile shoot respectively. Numerous bicornute platyspermic seeds are arranged in two rows, obconical, with micropyle pointing upwards. It may represent a new extinct gymnosperms.
关键词	Nystroemia Reniformis (Kawasaki) Comb. Nov. Gymnosperms Permian Henan China
DOI	10.1360/02wd0541
语种	英语
关键词[WOS]	North China ; Plant
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000186305600020
出版者	SCIENCE PRESS
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/1115
专题	中国科学院南京地质古生物研究所其他
通讯作者	Wang, Jun (王军)
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 2.Univ Penn, Dept Earth & Environm Sci, Philadelphia, PA 19104 USA 3.Lanzhou Univ, Dept Geol, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jun ,Pfefferkorn, HW,Sun, BN,et al. Discovery of organic connection of Chiropteris Kurr and Nystroemia Halle from Early Permian of western Henan, China[J]. CHINESE SCIENCE BULLETIN,2003,48(20):2248-2252.
APA	Wang, Jun ,Pfefferkorn, HW,Sun, BN,&Liu, LJ .(2003).Discovery of organic connection of Chiropteris Kurr and Nystroemia Halle from Early Permian of western Henan, China.CHINESE SCIENCE BULLETIN,48(20),2248-2252.
MLA	Wang, Jun ,et al."Discovery of organic connection of Chiropteris Kurr and Nystroemia Halle from Early Permian of western Henan, China".CHINESE SCIENCE BULLETIN 48.20(2003):2248-2252.