A unique trunk of Psaroniaceae (Marattiales)-Psaronius xuii sp nov., and subdivision of the genus Psaronius Cotta

doi:10.1016/j.revpalbo.2013.05.005

	A unique trunk of Psaroniaceae (Marattiales)-Psaronius xuii sp nov., and subdivision of the genus Psaronius Cotta
	He, Xiao-Yuan ; Wang, Shi-Jun ; Hilton, Jason 3; Galtier, Jean 4; Li, Yong-Jie ; Shao, Longyi 5
	2013
发表期刊	REVIEW OF PALAEOBOTANY AND PALYNOLOGY
ISSN	0034-6667
卷号	197 页码:1-14
摘要	A new species of permineralised marattialean fern trunk is described from Lopingian (late Permian) aged volcaniclastic tuffs from Panxian County, western Guizhou Province, China and named Psaronius xuii sp. nov. The stem has vascular bundles that are encircled by a bi-layered sheath and has a ground tissue consisting of thicker-walled and thinner-walled parenchymatous cells and dispersed nests of sclerenchymatous cells. Two sclerenchymatous strands occur between neighboring stelar cycles, with this species lacking a peripheral sclerenchyma sheath and possessing a chrysanthemum-shaped sclerenchyma strands in the adaxial bay of the peripheral vascular bundles. Although distinct from other species, comparisons demonstrate a consistent organisation amongst contemporaneous species from South Cathaysia that have sclerenchymatous strands in the adaxial bay of the peripheral vascular bundles, vascular bundles and leaf traces surrounded by a vascular bundle sheath, and the middle part of the leaf trace is depressed inward after departing from the peripheral vascular bundle. These features are used to define the Panxianensis Group named after the most comprehensively known species, P. panxianensis. Species within the Panxianensis Group differ from other species from the Carboniferous and Permian floras of Euramerica, Gondwana and North Cathaysia that we place in the Blicklei Group that lack sclerenchymatous strands in the adaxial bay of the peripheral vascular bundles, lack vascular bundle sheaths, and the middle part of the leaf trace is arched outwards when they depart from the peripheral vascular bundles. Members of the Panxianensis Group appear to represent a relatively derived group that appears to be endemic to South Cathaysia, with these presumably evolving from members of the Blicklei Group in the Cisuralian or Guadalupian. (C) 2013 Elsevier B.V. All rights reserved.
关键词	Permian Marattiales tree fern trunk stem tuff
学科领域	Plant Sciences ; Paleontology
DOI	10.1016/j.revpalbo.2013.05.005
收录类别	SCI
语种	英语
WOS关键词	PRESERVED MARATTIALEAN PLANTS ; SOUTHWESTERN CHINA ; PERMIAN FLORAS ; FERNS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000324359300001
出版者	ELSEVIER SCIENCE BV
文献子类	Article
出版地	AMSTERDAM
资助机构	Chinese Academy of Sciences(Chinese Academy of Sciences) ; National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences)(Chinese Academy of Sciences)
作者邮箱	Hilton, Jason/F-5830-2012 ; li, yong/HDN-3885-2022 ; Shao, Longyi/AAS-9317-2020
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28194
专题	系统与进化植物学国家重点实验室
作者单位	1.Yunnan Univ, Yunnan Key Lab Palaeobiol, Kunming 650091, Peoples R China 2.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China 3.Chinese Acad Sci, State Key Lab Systemat & Evolutionary Bot, Inst Bot, Beijing 100093, Peoples R China 4.Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham B15 2TT, W Midlands, England 5.CIRAD, Unite Mixte Rech Bot & Bioinformat Architecture P, TA A51 PS2, F-34398 Montpellier 05, France 6.China Univ Min & Technol, State Key Lab Coal Resources & Safe Min, Sch Geosci & Surveying Engn, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	He, Xiao-Yuan,Wang, Shi-Jun,Hilton, Jason,et al. A unique trunk of Psaroniaceae (Marattiales)-Psaronius xuii sp nov., and subdivision of the genus Psaronius Cotta[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2013,197:1-14.
APA	He, Xiao-Yuan,Wang, Shi-Jun,Hilton, Jason,Galtier, Jean,Li, Yong-Jie,&Shao, Longyi.(2013).A unique trunk of Psaroniaceae (Marattiales)-Psaronius xuii sp nov., and subdivision of the genus Psaronius Cotta.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,197,1-14.
MLA	He, Xiao-Yuan,et al."A unique trunk of Psaroniaceae (Marattiales)-Psaronius xuii sp nov., and subdivision of the genus Psaronius Cotta".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 197(2013):1-14.

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