Sclerospiroxylon xinjiangensis nov. sp., a gymnospermous wood from the Kungurian (lower Permian) southern Bogda Mountains, northwestern China: Systematics and palaeoecology

doi:10.1016/j.geobios.2018.11.005

NIGPAS OpenIR

	Sclerospiroxylon xinjiangensis nov. sp., a gymnospermous wood from the Kungurian (lower Permian) southern Bogda Mountains, northwestern China: Systematics and palaeoecology
	Wan, Mingli 1,2; Yang, Wan 2; Wang, Jun 1,3
	2019-02-01
发表期刊	GEOBIOS
ISSN	0016-6995
卷号	52 页码:85-97
摘要	A new silicified wood, Sclerospiroxylon xinjiangensis Wan, Yang et Wang nov. sp., is described from the Cisuralian (lower Permian) Hongyanchi Formation in southeast Tarlong section, Turpan City, Xinjiang Uygur Autonomous Region, northwestern China. The fossil wood is composed of pith, primary xylem and Prototaxoxylon-type secondary xylem. The pith is solid, circular, heterocellular, with sclerenchyma and parenchyma. The primary xylem is endarch to mesarch, with scalariform thickenings on tracheid walls. The secondary xylem is pycnoxylic, composed of tracheids and parenchymatous rays. Growth rings are distinct. Tracheids have mostly uniseriate, partially biseriate araucarian pitting on their radial walls. Helical thickenings are always present on both the radial and the tangential walls. Rays are 2-14 cells high, with smooth walls. There are 2 to 7, commonly 2 to 4 cupressoid pits in each cross-field. Leaf traces suggest that S. xinjiangensis nov. sp. was evergreen with a leaf retention time of at least 15 years. Based on the sedimentological evidence, growth rings within the S. xinjiangensis nov. sp. could have been caused by seasonal climatic variations, with unfavorable seasons of drought or low temperature. Low percentage of latewood in each growth ring is probably due to the intensity of climatic seasonality and/or long leaf longevity. (C) 2018 Elsevier Masson SAS. All rights reserved.
关键词	Fossil wood Angara flora Cisuralian Xinjiang Palaeoecology
DOI	10.1016/j.geobios.2018.11.005
语种	英语
关键词[WOS]	CORDAITALEAN SEED PLANTS ; CONIFER WOODS ; GEN. NOV ; NORTHEASTERN BRAZIL ; WUTONGGOU FORMATION ; ALEXANDER ISLAND ; SHANXI PROVINCE ; PARNAIBA BASIN ; FOSSIL WOOD ; RECONSTRUCTION
资助项目	Chinese Academy of Sciences[XDB18030404] ; Chinese Academy of Sciences[XDPB05] ; National Natural Science Foundation of China[41872013] ; National Natural Science Foundation of China[41502006] ; National Natural Science Foundation of China[41530101] ; National Science Foundation[NSF EAR 1714749] ; State Key Laboratory of Palaeobiology and Stratigraphy[20181102] ; State Key Laboratory of Palaeobiology and Stratigraphy[20152104] ; China Scholarship Council (CSC)
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:000460849100006
项目资助者	Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Science Foundation ; State Key Laboratory of Palaeobiology and Stratigraphy ; China Scholarship Council (CSC)
出版者	ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/14810
通讯作者	Wang, Jun
作者单位	1.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Ctr Excellence Life & Paleoenvironm, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China 2.Missouri Univ Sci & Technol, Geol & Geophys Program, Rolla, MO 65409 USA 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wan, Mingli,Yang, Wan,Wang, Jun. Sclerospiroxylon xinjiangensis nov. sp., a gymnospermous wood from the Kungurian (lower Permian) southern Bogda Mountains, northwestern China: Systematics and palaeoecology[J]. GEOBIOS,2019,52:85-97.
APA	Wan, Mingli,Yang, Wan,&Wang, Jun.(2019).Sclerospiroxylon xinjiangensis nov. sp., a gymnospermous wood from the Kungurian (lower Permian) southern Bogda Mountains, northwestern China: Systematics and palaeoecology.GEOBIOS,52,85-97.
MLA	Wan, Mingli,et al."Sclerospiroxylon xinjiangensis nov. sp., a gymnospermous wood from the Kungurian (lower Permian) southern Bogda Mountains, northwestern China: Systematics and palaeoecology".GEOBIOS 52(2019):85-97.