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Integrated Lower-Middle Ordovician graptolite and chitinozoan biostratigraphy of the Jiangnan Slope Region, South China
Wang, Wen-Hui1; Tang, Peng (唐鹏)2; Chen, Wen-Jian3; Tan, Jing-Qiang1
2019-03-01
发表期刊PALAEOWORLD
ISSN1871-174X
卷号28期号:1-2页码:187-197
摘要

An integrated Early-Middle Ordovician graptolite and chitinozoan biostratigraphical study was carried out to improve the correlations between the two fossil groups in two sections in the Jiangnan Slope Region (deeper outer-shelf mud-sand-carbonate belt), South China. Six graptolite biozones and two chitinozoan biozones (including an undefined interval) were recognized. The chitinozoan Lagenochitina praepirum appears to be a stratigraphically useful species, despite being geographically restricted to South China, appearing at a level coincident with the first appearance of the index graptolite Levisograptus austrodentatus. Thus, the base of the Lagenochitina praepirum Biozone can also be regarded as the base of the Darriwilian Stage. The chitinozoan abundance in both sections is exceptionally low, and the assemblages do not contain the biostratigraphically important Belonechitina species. The distributions of both chitinozoans and graptolites are eco-dependent but show different onshore-offshore diversity trends. Chitinozoans are more diverse nearer to shore whereas graptolites are more diverse offshore, preferring slope facies. This may be caused by the different ecological preferences of chitinozoans and graptolites. (C) 2018 Elsevier Ireland Ltd Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. Published by Elsevier B.V. All rights reserved.

关键词Graptolite Chitinozoan Biostratigraphy Early-mid Ordovician Jiangnan Slope Region South China
DOI10.1016/j.palwor.2018.06.001
语种英语
关键词[WOS]Acritarch Distribution ; Biodiversification ; Assemblages ; Diversity ; Patterns ; Basin ; Area
资助项目National Natural Science Foundation of China[41772001] ; National Natural Science Foundation of China[41402010] ; National Natural Science Foundation of China[41521061] ; Thousand Youth Talents Plan of China ; IGCP Project[653]
WOS研究方向Paleontology
WOS类目Paleontology
WOS记录号WOS:000463600800016
项目资助者National Natural Science Foundation of China ; Thousand Youth Talents Plan of China ; IGCP Project
出版者ELSEVIER SCIENCE BV
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/15840
专题中国科学院南京地质古生物研究所
其他
通讯作者Tan, Jing-Qiang
作者单位1.Cent S Univ, Sch Geosci & Infophys, Key Lab Metallogen Predict Nonferrous Met & Geol, Minist Educ, Changsha 410083, Hunan, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
3.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210023, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714
Wang, Wen-Hui,Tang, Peng ,Chen, Wen-Jian,et al. Integrated Lower-Middle Ordovician graptolite and chitinozoan biostratigraphy of the Jiangnan Slope Region, South China[J]. PALAEOWORLD,2019,28(1-2):187-197.
APA Wang, Wen-Hui,Tang, Peng ,Chen, Wen-Jian,&Tan, Jing-Qiang.(2019).Integrated Lower-Middle Ordovician graptolite and chitinozoan biostratigraphy of the Jiangnan Slope Region, South China.PALAEOWORLD,28(1-2),187-197.
MLA Wang, Wen-Hui,et al."Integrated Lower-Middle Ordovician graptolite and chitinozoan biostratigraphy of the Jiangnan Slope Region, South China".PALAEOWORLD 28.1-2(2019):187-197.
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