Floian, Early Ordovician, trilobites from the Olongbluk Terrane, northwest China

doi:10.4202/app.01102.2023

NIGPAS OpenIR

	Floian, Early Ordovician, trilobites from the Olongbluk Terrane, northwest China
通讯作者	Wei, Xin(xwei@nigpas.ac.cn)
	Wei, Xin1 ; Zhou, Zhiqiang 2
	2023
发表期刊	ACTA PALAEONTOLOGICA POLONICA
ISSN	0567-7920
卷号	68 期号:4 页码:683-693
摘要	Floian, Early Ordovician trilobites are systematically described and revised based on new material from the middle part of the Duoquanshan Formation of the Shihuigou area, northern Qinghai Province, northwest China. The fauna that lived on the shallow-water carbonate platform comprises three species belonging to two families, i.e., Tsaidamaspis diarmatus, Zhiyia tsinghaiensis, and Liexiaspis sp. indeterminate. It exhibits a strong endemicity to the Olongbluk terrane. The new isoteline genus Zhiyia is established on the basis of the material from the Olongbluk terrane and South China palaeo-plate, and is characterized by its: (i) almost obsolete cephalic and pygidial axial furrows; (ii) flattened anterior border and narrow (sag., exsag.) occipital ring; (iii) bilobed hypostome with a shallow median notch and a small triangular median projection; (iv) subsemicircular pygidium with wide pygidial axis and border. Faunal evidence indicates that the palaeogeographic position of the Olongbluk terrane may have been situated closer to the South China palaeoplate rather than the North China palaeoplate during the Floian.
关键词	Trilobita palaeogeography Floian Ordovician Olongbluk terrane northwest China
DOI	10.4202/app.01102.2023
收录类别	SCI
语种	英语
关键词[WOS]	PART
资助项目	Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0706] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB 26000000] ; National Science Foundation of China[41672008] ; National Science Foundation of China[41972011] ; National Science Foundation of China[41972015] ; National Science Foundation of China[42072005] ; National Science Foundation of China[42072007] ; National Science Foundation of China[42030510] ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[213123]
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:001164839000007
项目资助者	Second Tibetan Plateau Scientific Expedition and Research Program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)
出版者	INST PALEOBIOLOGII PAN
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/43316
专题	中国科学院南京地质古生物研究所
通讯作者	Wei, Xin
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 Geol Sci, Xian Inst Geol & Mineral Resources, Xian 710054, Peoples R China
第一作者单位	中国科学院南京地质古生物研究所
通讯作者单位	中国科学院南京地质古生物研究所
推荐引用方式 GB/T 7714	Wei, Xin,Zhou, Zhiqiang. Floian, Early Ordovician, trilobites from the Olongbluk Terrane, northwest China[J]. ACTA PALAEONTOLOGICA POLONICA,2023,68(4):683-693.
APA	Wei, Xin,&Zhou, Zhiqiang.(2023).Floian, Early Ordovician, trilobites from the Olongbluk Terrane, northwest China.ACTA PALAEONTOLOGICA POLONICA,68(4),683-693.
MLA	Wei, Xin,et al."Floian, Early Ordovician, trilobites from the Olongbluk Terrane, northwest China".ACTA PALAEONTOLOGICA POLONICA 68.4(2023):683-693.