Exploring the stem to crown group transition in Marattiales: A new species of frond from the late Permian of China with features of the Psaroniaceae and Marattiaceae

doi:10.1016/j.revpalbo.2021.104506

	Exploring the stem to crown group transition in Marattiales: A new species of frond from the late Permian of China with features of the Psaroniaceae and Marattiaceae
	He, Xiao-Yuan ; Hilton, Jason 2,3; Wang, Shi-Jun ; Cheng, Xin-Shi
	2021
发表期刊	REVIEW OF PALAEOBOTANY AND PALYNOLOGY
ISSN	0034-6667
卷号	295
摘要	A new species of the Marattialean fern frond Rothwellopteris is proposed for specimens preserving both morphology and anatomy from the Wuchiapingian-Changshingian (late Permian) aged Xuanwei Formation of South China. Fronds are at least bipinnate and bear falcate, pecopteroid pinnules with a thin lamina. The penultimate pinna rachis has a polycyclic vascular system with endarch primary xylem and longer vascular bundles located abaxially in a single radial row, and shorter vascular bundles adaxially arranged in two radial rows, with a vascular bundle sheath of sclerenchyma cells. Ground tissue comprises parenchyma cells and numerous secretory ducts. Features of the new species suggest that itwas adapted for mesomorphy, while the previously recognized species Rothwellopteris pecopteroides was adapted for xeromorphy or was a sun-leaf. Like R. pecopteroides, the new species displays a mosaic of morphological and anatomical features characteristic of both the Paleozoic family Psaroniaceae and the extant family Marattiaceae; we interpret it to be a member of the evolutionary stemgroup from which stratigraphically younger Marattiaceae evolved. Our findings show that the stem- to crowngroup transition within Marattiales commenced before the end of the Permian and that a greater diversity of transitional forms can now be recognized from the late Permian and include the genera Compsopteris, Rothwellopteris, Tietea and Tuvichapteris. (C) 2021 Published by Elsevier B.V.
关键词	Marattiales Psaroniaceae Marattiaceae Frond Xuanwei Formation Xeromorphy
学科领域	Plant Sciences ; Paleontology
DOI	10.1016/j.revpalbo.2021.104506
收录类别	SCI
语种	英语
WOS关键词	GUIZHOU PROVINCE ; SOUTHWESTERN CHINA ; XUANWEI FORMATION ; SOUTHERN CHINA ; PLANTS ; TRUNK ; NOV.
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000700047300006
出版者	ELSEVIER
文献子类	Article
出版地	AMSTERDAM
EISSN	1879-0615
资助机构	National Natural Science Foundation of China [41972017, U1702242, 41472021, 41530101] ; State Key Laboratory of Palaeobiology and Stratigraphy (NIGP) [193109] ; Strategic Priority Research Program (B) of Chinese Academy of Sciences [XDB26000000]
作者邮箱	hexiaoy@ynu.edu.cn
引用统计	被引频次：4[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/2S10CLM1/26776
专题	系统与进化植物学国家重点实验室
作者单位	1.Yunnan Univ, MEC Int Joint Lab Palaeobiol & Palaeoenvironm, Yunnan Key Lab Palaeobiol, Inst Palaeontol, Kunming 650500, Yunnan, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 3.Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham B15 2TT, W Midlands, England 4.Univ Birmingham, Birmingham Inst Forest Res, Birmingham B15 2TT, W Midlands, England 5.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	He, Xiao-Yuan,Hilton, Jason,Wang, Shi-Jun,et al. Exploring the stem to crown group transition in Marattiales: A new species of frond from the late Permian of China with features of the Psaroniaceae and Marattiaceae[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2021,295.
APA	He, Xiao-Yuan,Hilton, Jason,Wang, Shi-Jun,&Cheng, Xin-Shi.(2021).Exploring the stem to crown group transition in Marattiales: A new species of frond from the late Permian of China with features of the Psaroniaceae and Marattiaceae.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,295.
MLA	He, Xiao-Yuan,et al."Exploring the stem to crown group transition in Marattiales: A new species of frond from the late Permian of China with features of the Psaroniaceae and Marattiaceae".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 295(2021).

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