Biostratigraphy of the Small Shelly Fossils From the Upper Maidiping Formation (Terreneuvian) at the Fandian Section, Sichuan Province, South China

doi:10.3389/feart.2022.922439

	Biostratigraphy of the Small Shelly Fossils From the Upper Maidiping Formation (Terreneuvian) at the Fandian Section, Sichuan Province, South China
	Feng, Qian 2; Pan, Bing 1; Yang, Aihua 2; Lu, Miao 1; Li, Guoxiang 1
刊名	FRONTIERS IN EARTH SCIENCE
	2022-07-21
卷号	10 页码:13
关键词	small shelly fossils biostratigraphy Watsonella crosbyi Maidiping Formation Fandian section Cambrian stage 2 South China
DOI	10.3389/feart.2022.922439
通讯作者	Pan, Bing(bpan@nigpas.ac.cn)
英文摘要	Small shelly fossils (SSFs) are a useful and critical tool for subdivision and correlation of the Cambrian Terreneuvian stratigraphy. The Maidiping Formation in southern Sichuan is a well-known Terreneuvian lithologic unit with rich SSFs. Here, the upper Maidiping Formation at the Fandian section, an important supplementary section of the classic Maidiping section, is studied for understanding its SSF assemblages and stratigraphic implication. There are 26 genera, 24 species, and 3 undetermined species recovered from the Fandian section, and Watsonella crosbyi was discovered from this section for the first time. Two SSF biozones of the Yangtze Platform, i.e., the possible Paragloborilus subglobosus-Purella squamulosa Assemblage Zone (? Zone II) and the W. crosbyi Assemblage Zone (Zone III), can be recognized. Comparing with the Maidiping section, the Fandian section has a relatively successive SSF biostratigraphy and carbon isotope stratigraphy in the upper Maidiping Formation. The SSF Zone II (?) and Zone III from the Fandian section can be, respectively, correlated to the same zones from the upper Maidiping Formation of the nearby Maidiping section (only Zone III), the upper Zhongyicun and Dahai members of the Zhujiaqing Formation in eastern Yunnan, the top Kuanchuanpu Formation in southern Shaanxi and northern Sichuan, and the beds 4 and 5 (or units 3 and 4) of the Yanjiahe Formation in western Hubei. The almost cosmopolitan distribution and nearly synchronous earliest appearance of W. crosbyi strengthen the applicability of its first appearance data (FAD) to define the base of Cambrian Stage 2 in South China (Xiaotanian) as well as in other continents. The FAD of W. crosbyi just around the onset of the ZHUCE carbon isotope excursion at the Fandian section also further reinforces the utility of the onset of ZHUCE as an auxiliary maker for defining the base of the Xiaotanian in South China.
WOS关键词	CARBON-ISOTOPE STRATIGRAPHY ; CAMBRIAN BOUNDARY INTERVAL ; YANJIAHE FORMATION ; CHRONOSTRATIGRAPHY ; GEOCHRONOLOGY ; SUBDIVISION ; ASSEMBLAGES ; APPEARANCE ; EVOLUTION ; PROGRESS
WOS研究方向	Geology
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000835967800001
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/41111]
专题	中国科学院南京地质古生物研究所
通讯作者	Pan, Bing
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China 2.Nanjing Univ, Ctr Res & Educ Biol Evolut & Environm, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Feng, Qian,Pan, Bing,Yang, Aihua,et al. Biostratigraphy of the Small Shelly Fossils From the Upper Maidiping Formation (Terreneuvian) at the Fandian Section, Sichuan Province, South China[J]. FRONTIERS IN EARTH SCIENCE,2022,10:13.
APA	Feng, Qian,Pan, Bing,Yang, Aihua,Lu, Miao,&Li, Guoxiang.(2022).Biostratigraphy of the Small Shelly Fossils From the Upper Maidiping Formation (Terreneuvian) at the Fandian Section, Sichuan Province, South China.FRONTIERS IN EARTH SCIENCE,10,13.
MLA	Feng, Qian,et al."Biostratigraphy of the Small Shelly Fossils From the Upper Maidiping Formation (Terreneuvian) at the Fandian Section, Sichuan Province, South China".FRONTIERS IN EARTH SCIENCE 10(2022):13.