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REVISITING THE MOLLUSCAN FAUNA FROM THE CAMBRIAN (SERIES 2, STAGES 3-4) XINJI FORMATION OF NORTH CHINA
Li, Luoyang1,2; Zhang, Xingliang1; Skovsted, Christian B.1,2; Yun, Hao1; Pan, Bing (潘兵)2,3; Li, Guoxiang (李国祥)3
2019-10-29
Source PublicationPAPERS IN PALAEONTOLOGY
ISSN2056-2799
Pages44
Abstract

A diverse group of molluscs from the Cambrian Series 2, Stages 3-4 Xinji Formation of the North China Block (NCB) is described, based on more than 4500 specimens from three well-studied sections in Shaanxi and Henan provinces, along the southern and southwestern margin of the NCB. Twenty molluscan species are identified, including one bivalve, three stem group gastropods, and 16 additional helcionelloids. Among these, six helcionelloid species are reported from the NCB for the first time, and one new species, Parailsanella luonanensis sp. nov. is proposed. This diverse molluscan fauna shares a large number of species with contemporaneous faunas of South Australia (15), Antarctica (7), Laurentia (6), Siberia (3) and South China (1). Faunal similarities are even greater on a generic level. The striking similarities of the molluscan faunas of North China, South Australia and Antarctica strongly support the hypothesis that the NCB was situated close to Eastern Gondwana, most likely close to South Australia in the Cambrian Epoch 2. In addition, well-preserved shell attachment muscle scars were observed in the helcionelloid Figurina figurina, with two pairs of symmetrical, continuous, band-like muscle scars, which are obviously different from the musculature of both gastropods and monoplacophorans. Because of this unique musculature, these characteristic Cambrian cap-like molluscs are assigned to the Helcionelloida rather than to the Gastropoda or Monoplacophora.

KeywordCambrian Series 2 North China mollusc taxonomy muscle scar
DOI10.1002/spp2.1289
Language英语
WOS KeywordSMALL SHELLY FOSSILS ; SOUTH CHINA ; YOCHELCIONELLA MOLLUSCA ; HELCIONELLOID MOLLUSK ; AMADEUS BASIN ; MUSCLE SCARS ; GENUS ; MICROSTRUCTURES ; MORPHOLOGY ; AUSTRALIA
Funding ProjectNational Key Research and Development Program[2017YFC0603101] ; Natural Science Foundation of China[41621003] ; Natural Science Foundation of China[41890840] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; 111 Project[D17013] ; Swedish Research Council[VR2016-04610]
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000493505800001
Funding OrganizationNational Key Research and Development Program ; Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; 111 Project ; Swedish Research Council
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/29121
Collection中国科学院南京地质古生物研究所
Corresponding AuthorZhang, Xingliang; Skovsted, Christian B.
Affiliation1.Northwest Univ, Dept Geol, Shaanxi Key Lab Early Life & Environm, State Key Lab Continental Dynam, Xian 710069, Shaanxi, Peoples R China
2.Swedish Museum Nat Hist, Dept Palaeobiol, Box 50007, SE-10405 Stockholm, Sweden
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Li, Luoyang,Zhang, Xingliang,Skovsted, Christian B.,et al. REVISITING THE MOLLUSCAN FAUNA FROM THE CAMBRIAN (SERIES 2, STAGES 3-4) XINJI FORMATION OF NORTH CHINA[J]. PAPERS IN PALAEONTOLOGY,2019:44.
APA Li, Luoyang,Zhang, Xingliang,Skovsted, Christian B.,Yun, Hao,Pan, Bing ,&Li, Guoxiang .(2019).REVISITING THE MOLLUSCAN FAUNA FROM THE CAMBRIAN (SERIES 2, STAGES 3-4) XINJI FORMATION OF NORTH CHINA.PAPERS IN PALAEONTOLOGY,44.
MLA Li, Luoyang,et al."REVISITING THE MOLLUSCAN FAUNA FROM THE CAMBRIAN (SERIES 2, STAGES 3-4) XINJI FORMATION OF NORTH CHINA".PAPERS IN PALAEONTOLOGY (2019):44.
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