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Lower and Middle Ordovician chitinozoans from Honghuayuan, South China: Biodiversity patterns and response to environmental changes
Liang, Yan (梁艳)1,2,3; Hints, Olle3; Luan, Xiaocong (栾晓聪)4; Tang, Peng (唐鹏)4; Nalvak, Jaak3; Zhan, Renbin (詹仁斌)4
2018-07-01
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume500Pages:95-105
Abstract

A complete chitinozoan succession through the uppermost Tremadocian to lower Darriwilian (Lower and Middle Ordovician) at Honghuayuan, northern Guizhou Province in South China, was systematically studied and 47 species of 14 genera were identified. Two chitinozoan biodiversity acmes were recognized, which occur in the lower part of the Acrograptus filiformis (uppermost Hunghuayuan Formation) and middle part of the Azygograptus suecicus (middle member of the Meitan Formation) graptolite biozones. In the upper Dapingian and lower Darriwilian (uppermost part of the Meitan Formation), chitinozoan diversity was relatively high after a less conspicuous peak in the upper Dapingian. Comparisons between diversity trends of chitinozoans, acritarchs and brachiopods, and the environmental changes revealed both similarities and differences. In the Floian, the chitinozoan biodiversity curve at Honghuayuan shows good correlation with sea-level changes. The group temporarily disappeared when the sea level was at the highest, then reappeared and reached a biodiversity acme when sea level was low. Furthermore, a large organic carbon isotope excursion is coincident with the absence of chitinozoans and a highstand period after the sea-level rise in the lower and middle Floian. Diversity curves show fewer connections with the sea-level and organic C-isotope undulations during the Dapingian and early Darriwilian. New data suggest that the environmental changes played a significant role in the early stage of Ordovician chitinozoan radiation, roughly corresponding to the Floian at the Honghuayuan section. In the Dapingian and early Darriwilian, the intrinsic factors seem to have played a more important role in shaping biodiversity patterns of chitinozoans in South China.

KeywordOrdovician Biodiversification Sea-level Changes Meitan Formation Hunghuayuan Formation Yangtze Platform
DOI10.1016/j.palaeo.2018.04.002
Language英语
WOS KeywordPhanerozoic Taxonomic Diversity ; Western Newfoundland ; Kinetic-model ; Event Gobe ; Diversification ; Graptolite ; Record ; Biostratigraphy ; Conodont ; Yichang
Funding ProjectNational Natural Science Foundation of China[41602010] ; National Natural Science Foundation of China[41521061] ; State Key Laboratory of Palaeobiology and Stratigraphy[20162107] ; Estonian Research Council[MOBJD62] ; Estonian Research Council[PUT611] ; IGCP Project[653]
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000432501700007
Funding OrganizationNational Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy ; Estonian Research Council ; IGCP Project
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/18679
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorLiang, Yan (梁艳)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, CAS Key Lab Econ Stratig & Palaeogeog, 39 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, 39 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
3.Tallinn Univ Technol, Dept Geol, Ehitajate Tee 5, EE-19086 Tallinn, Estonia
4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Liang, Yan ,Hints, Olle,Luan, Xiaocong ,et al. Lower and Middle Ordovician chitinozoans from Honghuayuan, South China: Biodiversity patterns and response to environmental changes[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2018,500:95-105.
APA Liang, Yan ,Hints, Olle,Luan, Xiaocong ,Tang, Peng ,Nalvak, Jaak,&Zhan, Renbin .(2018).Lower and Middle Ordovician chitinozoans from Honghuayuan, South China: Biodiversity patterns and response to environmental changes.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,500,95-105.
MLA Liang, Yan ,et al."Lower and Middle Ordovician chitinozoans from Honghuayuan, South China: Biodiversity patterns and response to environmental changes".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 500(2018):95-105.
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