Ordovician chitinozoans of the Miaopo Formation at Zhenjin, Upper Yangtze Platform, South China

doi:10.1080/01916122.2023.2271086

	Ordovician chitinozoans of the Miaopo Formation at Zhenjin, Upper Yangtze Platform, South China
	Liang, Yan 1,3; Nolvak, Jaak 2; Hints, Olle 2
刊名	PALYNOLOGY
	2023-10-30
页码	15
关键词	biostratigraphy China chitinozoa Middle-Late Ordovician latest Darriwilian to Sandbian taxonomy
ISSN号	0191-6122
DOI	10.1080/01916122.2023.2271086
通讯作者	Liang, Yan(liangyan@nigpas.ac.cn)
英文摘要	Chitinozoan investigations on the late Middle to early Late Ordovician in South China are limited. Documented chitinozoan occurrences are mainly from the Miaopo Formation on the Upper Yangtze Platform. The present study reports new data from the Miaopo Formation at the Zhenjin section in the Yichang area. In total, 13 genera and 33 species are recognised, and three new species are described: Spinachitina? coronifera sp. nov., Lagenochitina yichangella sp. nov. and Pellichitina confragosa sp. nov. The Baltoscandian index species, Laufeldochitina striata, is documented in the lowermost part of the formation. This is the first report of this species in South China. The L. striata Biozone is suggested for the basal part of the formation due to the presence of the eponymous species. The index species of the Laufeldochitina stentor Biozone, the Armoricochitina granulifera and Cyathochitina megacalix subzones adopted in the Jieling section, are also observed in the Zhenjin section. However, according to the new data obtained at Zhenjin, the first appearance datum of C. megacalix and A. granulifera coincides with that of L. striata. Therefore, the C. megacalix Subzone is kept but moved to the L. striata Biozone. Armoricochitina granulifera has stable occurrences in almost the entire Miaopo Formation, corresponding to the Nemagraptus gracilis graptolite biozone. It is slightly older than Baltic records but could be useful for recognising this time interval in South China.
资助项目	Natural Science Foundation of China ; Nanjing Institute of Geology and Palaeontology, Chinese Academy of Science (NIGPAS)
WOS关键词	ANTI-ATLAS ; BIOSTRATIGRAPHY ; ANTICOSTI ; ZONATION ; YICHANG ; REGION ; QUEBEC ; AREA ; GSSP
WOS研究方向	Plant Sciences ; Paleontology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:001107533800001
资助机构	Natural Science Foundation of China ; Nanjing Institute of Geology and Palaeontology, Chinese Academy of Science (NIGPAS)
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/43132]
专题	中国科学院南京地质古生物研究所
通讯作者	Liang, Yan
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 2.Tallinn Univ Technol, Dept Geol, Tallinn, Estonia 3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Liang, Yan,Nolvak, Jaak,Hints, Olle. Ordovician chitinozoans of the Miaopo Formation at Zhenjin, Upper Yangtze Platform, South China[J]. PALYNOLOGY,2023:15.
APA	Liang, Yan,Nolvak, Jaak,&Hints, Olle.(2023).Ordovician chitinozoans of the Miaopo Formation at Zhenjin, Upper Yangtze Platform, South China.PALYNOLOGY,15.
MLA	Liang, Yan,et al."Ordovician chitinozoans of the Miaopo Formation at Zhenjin, Upper Yangtze Platform, South China".PALYNOLOGY (2023):15.