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DOI	10.1016/j.palaeo.2019.109580
	Skeletal faunas of the lower Cambrian Yu'anshan Formation; eastern Yunnan; China: Metazoan diversity and community structure during the Cambrian Age 3
	Sun H.; Zhao F.; Steiner M.; Li G.; Na L.; Pan B.; Yin Z.; Zeng H.; Van Iten H.; Zhu M.
发表日期	2020
ISSN	0031-0182
卷号	542
英文摘要	The lower Cambrian (Stage 3) Yu'anshan Formation in Yunnan Province, South China hosts the Chengjiang Lagerstätte, an exceptional window on the Cambrian Explosion. However, skeletal microfossils from this formation have long been neglected owing to the dominance of siliciclastics over carbonates. Here we characterize a new assemblage of small shelly fossils from the Maotianshan Shale Member of the Yu'anshan Formation. The assemblage consists of univalved mollusc, hyolith and brachiopod shells, trilobite and bradoriid carapaces, chancelloriid sclerites, sponge spicules, and echinoderm ossicles. Combining this information with taxonomic data previously tabulated for fossil assemblages from three other facies, we performed quantitative comparisons of the genus-level taxonomic diversity and modes of life and nutrition of four mutually equivalent, early Cambrian (Age 3) paleocommunities: (1) skeletal faunas of the inner shelf; (2) predominantly soft-bodied faunas of the intra-shelf basin; (3) archaeocyathan faunas of the carbonate shelf; and (4) sponge-dominated faunas of the slope to basin areas. The taxonomic and paleoecological distinctness of these four paleocommunities indicate possible low levels of competition within the communities and rapid expansion of habitat (ecospace) ranges, though with similarities in the taxonomic composition of poriferans and arthropods reflecting the rapid migration of these two groups into new habitats. The present, integrative study provides a more comprehensive portrait of metazoan diversification and paleocommunity evolution during the peak phase of the Cambrian Explosion than do investigations based on single communities. © 2020 Elsevier B.V.
英文关键词	Cambrian Explosion; Paleocommunity; Paleoecology; Small shelly fossils; South China
语种	英语
scopus关键词	Arthropoda; Bradoriida; Chancelloriidae; Citrus maxima; Echinodermata; Metazoa; Mollusca; Porifera
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150605
作者单位	State Key Laboratory of Palaeobiology and Stratigraphy & Center for Excellence in Life and Paleoenvironment, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China; National Maritime Museum of China, Tianjin, 300467, China; Department of Earth Sciences, Freie Universität Berlin, Malteserstrasse 74-100, Haus D, Berlin, 12249, Germany; Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China; Department of Geology, Hanover College, Hanover, IN 47243, United States; Department of Invertebrate Paleontology, Cincinnati Museum Center, 1301 Western Avenue, Cincinnati, OH 45203, United States; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Sun H.,Zhao F.,Steiner M.,et al. Skeletal faunas of the lower Cambrian Yu'anshan Formation; eastern Yunnan; China: Metazoan diversity and community structure during the Cambrian Age 3[J],2020,542.
APA	Sun H..,Zhao F..,Steiner M..,Li G..,Na L..,...&Zhu M..(2020).Skeletal faunas of the lower Cambrian Yu'anshan Formation; eastern Yunnan; China: Metazoan diversity and community structure during the Cambrian Age 3.Palaeogeography, Palaeoclimatology, Palaeoecology,542.
MLA	Sun H.,et al."Skeletal faunas of the lower Cambrian Yu'anshan Formation; eastern Yunnan; China: Metazoan diversity and community structure during the Cambrian Age 3".Palaeogeography, Palaeoclimatology, Palaeoecology 542(2020).