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Fossil Association from the Lower Cambrian Yanjiahe Formation in the Yangtze Gorges Area, Hubei, South China
Author(s) -
Junfeng GUO,
Yong LI,
Jian HAN,
Xingliang ZHANG,
Zhifei ZHANG,
Qiang OU,
Jianni LIU,
Degan SHU,
MARUYAMA Shigenori,
KOMIYA Tsuyoshi
Publication year - 2008
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.2008.tb00712.x
Subject(s) - siltstone , geology , precambrian , paleontology , carbonate , sedimentary rock , three gorges , assemblage (archaeology) , biogeosciences , carbonate rock , china , archaeology , facies , geography , earth science , materials science , geotechnical engineering , structural basin , metallurgy
Apart from previously reported Small Shelly Fossils (SSFs), a macroscopic fossil assemblage, comprising abundant algae, cone‐shaped tubular fossil forms, and probable impressions of a megascopic metazoan, comes from the Lower Cambrian Yanjiahe Formation in the Yangtze Gorges area of western Hubei Province, south China. The visible fossils are preserved in thinlaminated siltstone or muddy siltstone intercalated between 8–15 mm‐thick carbonate deposits, probably representing sedimentary settings of a constrained local depression in the shallow water carbonate platform during the Early Cambrian Meishucunian Stage. The macroscopic fossil association provides significant fossil evidence about the evolution of life from the late Precambrian to the ‘Cambrian explosion’ interval.