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Diverse biomineralizing animals in the terminal Ediacaran Period herald the Cambrian explosion
Cai, Yaoping1; Xiao, Shuhai2; Li, Guoxiang (李国祥)3; Hua, Hong1
2019-04-01
Source PublicationGEOLOGY
ISSN0091-7613
Volume47Issue:4Pages:380-384
Abstract

The origin and radiation of biomineralizing metazoans represents an important evolutionary innovation in the history of life. The earliest known skeletal metazoans are dominated by four genera in the terminal Ediacaran Period (ca. 550-539 Ma), followed by the diversification of new and diverse shelly fossils in the early Cambrian Period (ca. 539-510 Ma). Thus, terminal Ediacaran skeletal fossils and early Cambrian shelly fossils are commonly regarded as two distinct assemblages, with little overlap in stratigraphic distribution and taxonomic composition, implying a possible extinction event and a subsequent radiation event at the Ediacaran-Cambrian boundary. However, it has been shown recently that some Ediacaran skeletal taxa may have extended into the early Cambrian, indicating evolutionary continuity between these two assemblages. Here we document an assemblage of diverse skeletal fossils from the terminal Ediacaran Dengying Formation in South China. This assemblage is dominated by terminal Ediacaran taxa such as Cloudina and Sinotubulites, but also contains rare elements that morphologically resemble early Cambrian shelly fossils. This finding suggests that terminal Ediacaran skeletal animals are more diverse than previously thought and further reinforces the evolutionary continuity of biomineralizing animals across the Ediacaran-Cambrian transition.

DOI10.1130/G45949.1
Language英语
WOS KeywordNama Group ; Fossil Assemblages ; Biostratigraphic Correlation ; Southern Shaanxi ; Evolution ; Metazoan ; China ; Chronostratigraphy ; Extinction ; Cloudina
Funding ProjectNational Natural Science Foundation of China[41572012] ; National Natural Science Foundation of China[41672025] ; National Natural Science Foundation of China[41621003] ; National Natural Science Foundation of China[41890840] ; National Natural Science Foundation of China[41890844] ; State Key Laboratory of Continental Dynamics Research Project[201210128] ; Shaanxi Young Scientist Fund[2015KJXX-26] ; U.S. National Science Foundation[EAR-1528553]
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000461609100024
Funding OrganizationNational Natural Science Foundation of China ; State Key Laboratory of Continental Dynamics Research Project ; Shaanxi Young Scientist Fund ; U.S. National Science Foundation
PublisherGEOLOGICAL SOC AMER, INC
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/15856
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorCai, Yaoping; Xiao, Shuhai
Affiliation1.Northwest Univ, Shaanxi Key Lab Early Life & Environm, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Shaanxi, Peoples R China
2.Virginia Tech, Dept Geosci, Blacksburg, VA 24061 USA
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Cai, Yaoping,Xiao, Shuhai,Li, Guoxiang ,et al. Diverse biomineralizing animals in the terminal Ediacaran Period herald the Cambrian explosion[J]. GEOLOGY,2019,47(4):380-384.
APA Cai, Yaoping,Xiao, Shuhai,Li, Guoxiang ,&Hua, Hong.(2019).Diverse biomineralizing animals in the terminal Ediacaran Period herald the Cambrian explosion.GEOLOGY,47(4),380-384.
MLA Cai, Yaoping,et al."Diverse biomineralizing animals in the terminal Ediacaran Period herald the Cambrian explosion".GEOLOGY 47.4(2019):380-384.
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