Latisemenia longshania, gen. et sp nov., a new Late Devonian seed plant   from China

doi:10.1098/rspb.2015.1613

CORC > 北京大学 > 地球与空间科学学院

	Latisemenia longshania, gen. et sp nov., a new Late Devonian seed plant from China
	Wang, De-Ming ; Basinger, James F. ; Huang, Pu ; Liu, Le ; Xue, Jin-Zhuang ; Meng, Mei-Cen ; Zhang, Ying-Ying ; Deng, Zhen-Zhen
刊名	PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
	2015
关键词	cupule palaeogeography Late Devonian Latisemenia longshania ovule seed plant CO KERRY OVULE IRELAND CUPULATE BALLYHEIGUE EVOLUTION BELGIUM FLORA RECONSTRUCTION PTERIDOSPERM
DOI	10.1098/rspb.2015.1613
英文摘要	The earliest known ovules in the Late Devonian (Famennian) are borne terminally on fertile branches and are typically enclosed in a cupule. Among these ovules are some that have terete integumentary lobes with little or no fusion. Here, we report a new taxon, Latisemenia longshania, from the Famennian of South China, which bears cupulate ovules that are terminal as well as opposite on the fertile axis. Each ovule has four broad integumentary lobes, which are extensively fused to each other and also to the nucellus. The cupule is uniovulate, and the five flattened cupule segments of each terminal ovule are elongate cuneate and shorter than the ovule. Associated but not attached pinnules are laminate and Sphenopteris-like, with an entire or lobate margin. Latisemenia is the earliest known plant with ovules borne on the side of the fertile axis and may foreshadow the diverse ovule arrangements found among younger seed plant lineages that emerge in the Carboniferous. Following the telome theory, Latisemenia demonstrates derived features in both ovules and cupules, and the shape and fusion of integumentary lobes suggest effective pollination and protection to the nucellus. Along with other recent discoveries from China, Latisemenia extends the palaeogeographic range of the earliest seed plants.; National Basic Research Program of China of the Ministry of Science and Technology of China [2012CB821900]; National Natural Science Foundation of China [41172007]; SCI(E); PubMed; ARTICLE; dmwang@pku.edu.cn; pkuxue@pku.edu.cn; 1817; 20151613; 282
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/415653]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Wang, De-Ming,Basinger, James F.,Huang, Pu,et al. Latisemenia longshania, gen. et sp nov., a new Late Devonian seed plant from China[J]. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2015.
APA	Wang, De-Ming.,Basinger, James F..,Huang, Pu.,Liu, Le.,Xue, Jin-Zhuang.,...&Deng, Zhen-Zhen.(2015).Latisemenia longshania, gen. et sp nov., a new Late Devonian seed plant from China.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES.
MLA	Wang, De-Ming,et al."Latisemenia longshania, gen. et sp nov., a new Late Devonian seed plant from China".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES (2015).