A palynoflora of southern Xinjiang, China, and the proximity of the Tarim Plate to western Gondwana during the Llandovery (Silurian)

doi:10.1016/j.jseaes.2023.105769

	A palynoflora of southern Xinjiang, China, and the proximity of the Tarim Plate to western Gondwana during the Llandovery (Silurian)
	Wang, Kai 1,2,3; Liu, Bing-Cai 1,2,3; Wang, Yi 1,2; Xu, Hong-He 1,2
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2023-10-01
卷号	255 页码:13
关键词	Palynomorphs Cryptospores Kalpintag Formation Llandovery Tarim
ISSN号	1367-9120
DOI	10.1016/j.jseaes.2023.105769
通讯作者	Xu, Hong-He(hhxu@nigpas.ac.cn)
英文摘要	The Tarim Plate, an independent continent during the Paleozoic, is of significance in understanding life and environment evolution; however, its paleogeography during the early Silurian is poorly known. Palynology, especially on land-derived palynomorphs, provides independent evidence for paleogeography as a supplement to paleomagnetic data. Here we recognize a Llandovery palynoflora of the Kalpintag Formation from two sections (Arisu and East Dawangou) in the northwestern Tarim Basin, southern Xinjiang, China, the paleontological evidence of which suggests that the Tarim Plate was proximal to western Gondwana during the early Silurian. The palynoflora consists of moderately diverse cryptospores with eight genera and twelve species, as represented by Laevolancis chibrikovae, Sphaerasaccus glabellus, Dyadospora murusdensa, Pseudodyadospora laevigata, P. petasus, and Tetrahedraletes medinensis. The monad S. glabellus reported herein is the first record from China. Other palynomorphs include a large number of sphaeromorph acritarchs, some tubes and cuticle-like sheets, and a few scolecodonts. The various kinds of meiosis process and predetermined diversity of older cryprospore producers in the Tarim Basin, together with ecological factors, contribute to the evolution of the Kalpintag cryptospore producers. By taxonomic comparisons of global coeval sporomorph records, combined with quantitative analyses (Cluster Analysis and Nonmetric Multidimensional Scaling Analysis), the Kalpintag palynoflora shows more closely related to those in northern Chad, northeastern Libya and central Saudi Arabia. The geographical zonation of sporomorphs might emerge in the Llandovery. The geographical proximity of the Tarim Plate to western Gondwana during that time is also suggested.
资助项目	National Key Ramp;D Program of China[2022YFF0800200] ; Chinese Academy of Sciences[CAS-WX2021SF-0205]
WOS关键词	ANGLO-WELSH BASIN ; LATE ORDOVICIAN ; PARANA BASIN ; MICROFOSSIL RECORD ; ANTICOSTI-ISLAND ; EVIDENCE BEARING ; LAND PLANTS ; CRYPTOSPORES ; EVOLUTION ; AGE
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:001058936500001
资助机构	National Key Ramp;D Program of China ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/42665]
专题	中国科学院南京地质古生物研究所
通讯作者	Xu, Hong-He
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironment, Nanjing 210008, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Kai,Liu, Bing-Cai,Wang, Yi,et al. A palynoflora of southern Xinjiang, China, and the proximity of the Tarim Plate to western Gondwana during the Llandovery (Silurian)[J]. JOURNAL OF ASIAN EARTH SCIENCES,2023,255:13.
APA	Wang, Kai,Liu, Bing-Cai,Wang, Yi,&Xu, Hong-He.(2023).A palynoflora of southern Xinjiang, China, and the proximity of the Tarim Plate to western Gondwana during the Llandovery (Silurian).JOURNAL OF ASIAN EARTH SCIENCES,255,13.
MLA	Wang, Kai,et al."A palynoflora of southern Xinjiang, China, and the proximity of the Tarim Plate to western Gondwana during the Llandovery (Silurian)".JOURNAL OF ASIAN EARTH SCIENCES 255(2023):13.