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Nearshore warm-water biota development in the aftermath of the Late Ordovician Mass Extinction in South China
Jeon, Juwan1,2,3; Li, Yue1,2; Kershaw, Stephen4,5; Chen, Zhongyang1,2; Ma, Junye1,2; Lee, Jeong-Hyun6; Liang, Kun1,2; Yu, Shenyang7; Huang, Bing1,2; Zhang, Yuandong1,2,3
2022-10-01
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume603Pages:22
Abstract

The Late Ordovician Mass Extinction (LOME) occurred between two significant biotic diversifications: the Great Ordovician Biodiversification Event and the Silurian-Devonian Nekton Revolution. Upper Hirnantian carbonate deposits therefore are critical archives for understanding warm-water biotas, biodiversity resurgence and trophic chain development in the immediate aftermath of the LOME. In this study, we use microfacies analysis to investigate composition and biodiversity of the upper Hirnantian carbonates developed in northeastern Guizhou Province of China. These carbonates lay along the northern margins of the Dianqiangui landmass and are composed of intraclastic pack- to grainstone, mud- to wackestone, and bioclastic wacke- to packstone. Depositional age of the carbonates is estimated to be late Hirnantian, chiefly indicated by their coincidence with the Hirnantian Carbon Isotope Excursion and the brachiopods Cathaysiorthis and Eospirigerina. The development of carbonates containing diverse warm-water fossils at this transitional time reflects glacio-eustatic changes in the aftermath of the maximum Hirnantian glaciation and LOME, and the consequence of regional Kwangsian Orogeny in South China. Supposed autotrophic organisms in the carbonates are represented by calcimicrobes Allonema and Girvanella, and calcareous algae Amsassia, Dasyporella and Dimorphosiphon. Heterotrophic organisms are also abundant, including bryozoans (Atactoporella, Dekayia, Eridotrypa, Hallopora, Moorephylloporina and Ptilodictya?), trilobites (Dicranopeltis, Eoleonaspis, Mucronaspis (Songxites), Niuchangella and an aulacopleurid-like trilobite), rugose corals (Axiphoria, Eurogrewingkia, Meitanolasma and Grewingkia), tabulate corals (auloporid coral, Catenipora, Halysites, Paleofavosites and Propora), stromatoporoids (Camptodictyon, Ecclimadictyon and Cystostroma), conodonts (Ozarkodina and Walliserodus), benthic graptolites (Desmograptus), gastropods (at least two genera), and ostracods. Such a high biodiversity is evidence of a complex trophic web after the extinction pulses in South China. The biotic development of the warm-water benthic community might have been triggered by a short-lived localized favourable environment that facilitated the survival of warm-water biota during the Hirnantian, which is postulated to have pioneered further Silurian reef recovery in South China.

KeywordLate Ordovician Mass Extinctions Hirnantian South China Benthic community Trophic chain
DOI10.1016/j.palaeo.2022.111182
Indexed BySCI
Language英语
WOS KeywordCARBON-ISOTOPE STRATIGRAPHY ; SOOM SHALE LAGERSTATTE ; BRACHIOPOD FAUNAS ; SILURIAN TRANSITION ; ANTICOSTI ISLAND ; SEQUENCE STRATIGRAPHY ; OMULEV MOUNTAINS ; BIGHORN DOLOMITE ; NORTHERN GUIZHOU ; HIRNANTIA-FAUNA
Funding ProjectChinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[42030510] ; National Natural Science Foundation of China[41402013] ; National Natural Science Foundation of China[J1210006] ; Chinese Academy of Sciences (CAS) ANSO Scholarships for Young Talents ; 2020 and 2021 Nanjing Municipal Government International Students Scholarship
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000849640000001
Funding OrganizationChinese Academy of Sciences ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) ANSO Scholarships for Young Talents ; 2020 and 2021 Nanjing Municipal Government International Students Scholarship
PublisherELSEVIER
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/41190
Collection中国科学院南京地质古生物研究所
Corresponding AuthorZhang, Yuandong
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing 210008, Peoples R China
3.Univ Chinese Acad Sci UCAS, Beijing 100049, Peoples R China
4.Brunel Univ, Dept Life Sci, Kingston Lane, Uxbridge UB8 3PH, Middx, England
5.Nat Hist Museum, Earth Sci Dept, Cromwell Rd, London SW7 5BD, England
6.Chungnam Natl Univ, Dept Geol Sci, Daejeon 34134, South Korea
7.Qufu Normal Univ, Sch Geog & Tourism, Rizhao 276826, Peoples R China
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Jeon, Juwan,Li, Yue,Kershaw, Stephen,et al. Nearshore warm-water biota development in the aftermath of the Late Ordovician Mass Extinction in South China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2022,603:22.
APA Jeon, Juwan.,Li, Yue.,Kershaw, Stephen.,Chen, Zhongyang.,Ma, Junye.,...&Zhang, Yuandong.(2022).Nearshore warm-water biota development in the aftermath of the Late Ordovician Mass Extinction in South China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,603,22.
MLA Jeon, Juwan,et al."Nearshore warm-water biota development in the aftermath of the Late Ordovician Mass Extinction in South China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 603(2022):22.
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