Flabellariopteris, a new aquatic fern leaf from the Late Triassic of western Liaoning, China

IMR OpenIR

	Flabellariopteris, a new aquatic fern leaf from the Late Triassic of western Liaoning, China
其他题名	Flabellariopteris, a new aquatic fern leaf from the Late Triassic of western Liaoning, China
	Sun Chunlin 1; Li Tao 1; Na Yuling 1; Wu Wenhao 1; Li Yunfeng 1; Wang Lixia 3; Zhang Lijun 3
	2014
发表期刊	CHINESE SCIENCE BULLETIN
ISSN	1001-6538
卷号	59 期号:20 页码:2410-2418
摘要	An aquatic fern leaf, Flabellariopteris mii Sun gen. et sp. nov. from the Late Triassic of Western Liaoning, China, is described and proposed as the type species of the new morphortaxon of the Marsileaceae. The fossil leaves are preserved as impression. No fertile and rhizomatic materials are found. The leaves attached at a common point on the top of the petiole are composed of two leaflets joined basally in an opposite arrangement. The petiole is slender. The leaflet is fan-shaped or semi-circular, and commonly divided into four wedge-shaped lobes. Terminal margin of lobes is usually incised, incisions shallow or deep, with bluntly rounded or notched apex. The veins are conspicuously dichotomous, but anastomoses and marginal vein are absent. The unique morphological features, including two-parted thin leaflets, size, shape, veins and slender petiole, indicate that the present specimen represents an aquatic fern, which is the oldest fossil record and the first megafossil evidence assignable to Marsileaceae from the Triassic floras.
其他摘要	An aquatic fern leaf, Flabellariopteris mii Sun gen. et sp. nov. from the Late Triassic of Western Liaoning, China, is described and proposed as the type species of the new morphortaxon of the Marsileaceae. The fossil leaves are preserved as impression. No fertile and rhizomatic materials are found. The leaves attached at a common point on the top of the petiole are composed of two leaflets joined basally in an opposite arrangement. The petiole is slender. The leaflet is fan-shaped or semi-circular, and commonly divided into four wedge-shaped lobes. Terminal margin of lobes is usually incised, incisions shallow or deep, with bluntly rounded or notched apex. The veins are conspicuously dichotomous, but anastomoses and marginal vein are absent. The unique morphological features, including twoparted thin leaflets, size, shape, veins and slender petiole, indicate that the present specimen represents an aquatic fern, which is the oldest fossil record and the first megafossil evidence assignable to Marsileaceae from the Triassic floras.
关键词	SALVINIA LEAVES PHYLOGENETIC-RELATIONSHIPS DAKOTA FORMATION EXTANT FERNS MARSILEACEAE MORPHOLOGY EVOLUTION SEQUENCES PLANTS GENUS Aquatic fern Late Triassic Yangcaogou Formation Western Liaoning China
收录类别	CSCD
语种	英语
资助项目	[China Geological Survey Grant] ; [National Natural Science Foundation of China] ; [Ministry of Education of China] ; [National Project of China'Higher Education and Program for Introducing Talents of Discipline of Universities of China (Jilin University)]
CSCD记录号	CSCD:5197814
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/152208
专题	中国科学院金属研究所
作者单位	1.上海市地震局 2.吉林大学 3.中国科学院金属研究所
推荐引用方式 GB/T 7714	Sun Chunlin,Li Tao,Na Yuling,et al. Flabellariopteris, a new aquatic fern leaf from the Late Triassic of western Liaoning, China[J]. CHINESE SCIENCE BULLETIN,2014,59(20):2410-2418.
APA	Sun Chunlin.,Li Tao.,Na Yuling.,Wu Wenhao.,Li Yunfeng.,...&Zhang Lijun.(2014).Flabellariopteris, a new aquatic fern leaf from the Late Triassic of western Liaoning, China.CHINESE SCIENCE BULLETIN,59(20),2410-2418.
MLA	Sun Chunlin,et al."Flabellariopteris, a new aquatic fern leaf from the Late Triassic of western Liaoning, China".CHINESE SCIENCE BULLETIN 59.20(2014):2410-2418.