Conodont biostratigraphy of a new Permo-Triassic boundary section at Wenbudangsang, north Tibet

doi:10.1016/j.palaeo.2014.06.016

	Conodont biostratigraphy of a new Permo-Triassic boundary section at Wenbudangsang, north Tibet
	Wu, Guichun 1; Ji, Zhansheng 1; Trotter, Julie A.; Yao, Jianxin 1; Zhou, Liqin 3
刊名	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
	2014
卷号	411 页码:188-207
关键词	Wenbudangsang section Tibet Permian-Triassic boundary Conodont zonation
ISSN号	0031-0182
DOI	10.1016/j.palaeo.2014.06.016
英文摘要	The Wenbudangsang section is a newly discovered continuous succession of marine carbonates that straddles the Permian Triassic boundary (PTB), extending from the late Permian to the earliest Triassic (Induan). The section is located in the Wenbudangsang area of Geji County, northern Tibet, and tectonically sits within the northern Gangdise Stratigraphic division. Conodonts are abundant throughout this section, except being comparatively rare and less diverse in the Permian strata below the distinctive FTB Clay Bed. The conodonts are mainly represented by Hindeodus Isarcicella Pa elements, Neogondolella Pa elements, and ramiform elements, with few Neospathodus Pa elements present at the top of the section. Two conodont zonal successions have thus been determined based on Hindeodus Isarcicella and Neogondolella species. The Hindeodus Isarcicella succession includes the uppermost Permian Hindeodus julfensis Zone, Hindeodus praeparvus Zone, and the lowermost Triassic Hindeodus parvus Zone, Isarcicella staeschei Zone, Isarcicella isarcica Zone, and Hindeodus postparvus Zone. The Neogondolella succession consists of the upper Permian Neogondolella changxingensis Neogondolella deflecta Neogondolella postwangi Zone, Neogondolella yini Neogondolella zhangi Zone, Neogondolella meishanensis Zone, the Neogondolella taylorae Zone that crosses the PTB, and the lowermost Triassic Neogondolella krystyni Zone and Neogondolella prediscreta n. sp. Zone. The top of the section is defined by the Neospathodus kummeli Zone and Neospathodus cristagalli Zone. Two new species, Hindeodus microdentatus n. sp. and N. prediscreta n. sp., are established and described in this paper. The PTB conodont successions recognised in the new Wenbudangsang section have been closely correlated herein with other well-known PTB sections: the GSSP Meishan section of South China, sections in Abadeh in Iran, and sections at Spiti in India. Importantly, the conodont faunas from Wenbudangsang now provide an opportunity to effectively correlate the PTB hindeodid and gondolellid zonal schemes given the high abundance of both assemblages, which is unique to this section. (c) 2014 Elsevier B.V. All rights reserved.
学科主题	地层学与地史学
WOS关键词	GLOBAL STRATOTYPE SECTION ; SOUTH CHINA ; MEISHAN SECTION ; ZHEJIANG PROVINCE ; MASS EXTINCTION ; EVOLUTION ; HINDEODUS ; ZONATION ; SPITI ; SICHUAN
WOS研究方向	Physical Geography ; Geology ; Paleontology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000342269200017
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40508]
专题	中国地质科学院地质研究所
作者单位	1.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China 2.Minist Land & Resources, Key Lab Stratig & Paleontol, Beijing 100037, Peoples R China 3.Trotter, Julie A.] Univ Western Australia, Sch Earth & Environm, Crawley, WA 6009, Australia 4.Natl Sci & Technol Infrastruct, Beijing SHRIMP Ctr, Beijing 102206, Peoples R China
推荐引用方式 GB/T 7714	Wu, Guichun,Ji, Zhansheng,Trotter, Julie A.,et al. Conodont biostratigraphy of a new Permo-Triassic boundary section at Wenbudangsang, north Tibet[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2014,411:188-207.
APA	Wu, Guichun,Ji, Zhansheng,Trotter, Julie A.,Yao, Jianxin,&Zhou, Liqin.(2014).Conodont biostratigraphy of a new Permo-Triassic boundary section at Wenbudangsang, north Tibet.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,411,188-207.
MLA	Wu, Guichun,et al."Conodont biostratigraphy of a new Permo-Triassic boundary section at Wenbudangsang, north Tibet".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 411(2014):188-207.