A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate

doi:10.1016/j.revpalbo.2023.104945

	A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate
	Xie, Aowei 1,2,3; Wang, Yongdong 1; Tian, Ning 4; Uhl, Dieter 2,3
刊名	REVIEW OF PALAEOBOTANY AND PALYNOLOGY
	2023-10-01
卷号	317 页码:11
关键词	Brachyoxylon qijiangense sp nov Upper Shaximiao Formation Leaf retention time Mean sensitivity Qijiang
ISSN号	0034-6667
DOI	10.1016/j.revpalbo.2023.104945
通讯作者	Wang, Yongdong(ydwang@nigpas.ac.cn)
英文摘要	The Jurassic System in the Sichuan Basin of eastern Asia is represented by the extensive development of massive thick red beds, mainly composed of purplish-red sandstones and mudstones. Abundant invertebrate and verte -brate fossils have been recovered from these Jurassic red beds. However, fossil woods are much less documented. Here, we describe fossil woods from the Middle Jurassic Shaximiao Formation at Qijiang of Chongqing City in southeastern Sichuan Basin, China, obtaining typical Brachyoxylon anatomy with mixed radial tracheid pitting and araucarioid cross-field pitting. Owing to a novel combination of radial tracheid pitting, cross-field pitting and ray height, a new species, Brachyoxylon qijiangense Xie, Wang et Tian sp. nov. is recognized here. Based on the tree mean sensitivity and leaf retention time analysis, along with the comparison with other invertebrate and leaf fossils in the Shaximiao Formation, the new fossil woods bearing true growth rings with abundant, well-formed earlywood and extremely narrow latewood indicates that B. qijiangense sp. nov. was an evergreen tree growing in a warm and humid climate with mild seasonality during the Middle Jurassic in Qijiang, probably in a flooding-disturbed, streamside condition.
资助项目	National Natural Science Foundation of China (NSFC )[NSFC 41790454] ; National Natural Science Foundation of China (NSFC )[41702004] ; National Natural Science Foundation of China (NSFC )[41572014] ; National Natural Science Foundation of China (NSFC )[41688103] ; National Natural Science Foundation of China (NSFC )[41972007] ; National Natural Science Foundation of China (NSFC )[42002023] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB18000000] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB26000000] ; State Key Laboratory of Palaeobiology and Stratigraphy[20191103] ; State Key Laboratory of Palaeobiology and Stratigraphy[20192101] ; State Key Laboratory of Palaeobiology and Stratigraphy[20172103]
WOS关键词	GROWTH-RINGS ; ALEXANDER ISLAND ; FOSSIL WOODS ; CLIMATE ; REAPPRAISAL ; SICHUAN ; FOREST ; BASIN ; BIODIVERSITY ; RECORDS
WOS研究方向	Plant Sciences ; Paleontology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001052547300001
资助机构	National Natural Science Foundation of China (NSFC ) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; State Key Laboratory of Palaeobiology and Stratigraphy
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/42668]
专题	中国科学院南京地质古生物研究所
通讯作者	Wang, Yongdong
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 2.Senckenberg Forschungsinst, Senckenberganlage 25, D-60325 Frankfurt, Germany 3.Nat Museum Frankfurt, Senckenberganlage 25, D-60325 Frankfurt, Germany 4.Shenyang Normal Univ, Coll Palaeontol, Shenyang 110034, Peoples R China
推荐引用方式 GB/T 7714	Xie, Aowei,Wang, Yongdong,Tian, Ning,et al. A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2023,317:11.
APA	Xie, Aowei,Wang, Yongdong,Tian, Ning,&Uhl, Dieter.(2023).A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,317,11.
MLA	Xie, Aowei,et al."A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 317(2023):11.