A low-diversity, silicified Hirnantia Fauna from Butuo, southwestern Sichuan, on the western margin of Yangtze Platform

doi:10.1016/j.palwor.2021.12.005

	A low-diversity, silicified Hirnantia Fauna from Butuo, southwestern Sichuan, on the western margin of Yangtze Platform
	Wang, Qian 1,2,3; Huang, Bing 1,2; Li, Rongyu 4
刊名	PALAEOWORLD
	2023-06-01
卷号	32 期号:2 页码:354-366
关键词	Hirnantian Population dynamics Silicified brachiopod South China
ISSN号	1871-174X
DOI	10.1016/j.palwor.2021.12.005
通讯作者	Huang, Bing(bhuang@nigpas.ac.cn)
英文摘要	The latest Ordovician Hirnantia Fauna is distributed worldwide including South China, but with very few records from the western margin of the Yangtze Platform. A silicified Hirnantia Fauna from the uppermost Tiezufeike Formation in the Laoga section, Butuo County, southwestern Sichuan, enriches the fauna's record and warrants the recognition of the upper part of the Tiezufeike Formation as the Kuanyinchiao Bed. Etching bulk limestone samples from this level with acetic acid yielded 275 specimens of Dalmanella testudi-naria, Plectothyrella crassicosta, and Hindella crassa. The population dynamics are analyzed for three successive populations in the sec-tion. Size-frequency histograms and survivorship curves indicate gradual improvement of the palaeoenvironments during the end of the Late Ordovician glaciation. The low-diversity brachiopod assemblages recognized in our study are assigned to the Dalmanella-Plec-tothyrella Community (DP Community) according to their dominant species. It is comparable with two other examples of DP commu-nities, one from the neighboring Guizhou Province of Southwest China, and the other from the Baltica Region.(c) 2023 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved.
资助项目	Chinese Academy of Sciences[XDB26000000]
WOS关键词	ORDOVICIAN BRACHIOPOD FAUNA ; EAST BALTIC TAXONOMY ; MASS EXTINCTION ; TESTUDINARIA ; DALMANELLA ; MORTALITY
WOS研究方向	Paleontology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001003149700001
资助机构	Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/42135]
专题	中国科学院南京地质古生物研究所
通讯作者	Huang, Bing
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 & Paleoenvironm, Nanjing 210008, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Brandon Univ, Dept Geol, Brandon, MB R7A 6A9, Canada
推荐引用方式 GB/T 7714	Wang, Qian,Huang, Bing,Li, Rongyu. A low-diversity, silicified Hirnantia Fauna from Butuo, southwestern Sichuan, on the western margin of Yangtze Platform[J]. PALAEOWORLD,2023,32(2):354-366.
APA	Wang, Qian,Huang, Bing,&Li, Rongyu.(2023).A low-diversity, silicified Hirnantia Fauna from Butuo, southwestern Sichuan, on the western margin of Yangtze Platform.PALAEOWORLD,32(2),354-366.
MLA	Wang, Qian,et al."A low-diversity, silicified Hirnantia Fauna from Butuo, southwestern Sichuan, on the western margin of Yangtze Platform".PALAEOWORLD 32.2(2023):354-366.