Yanjiahe Formation

Yanjiahe Formation Stratigraphic range: Fortunian ~542–529 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Formation
Overlies	Dengying Formation
Lithology
Primary	Shale, limestone, dolomite
Other	Chert, phosphorite
Location
Coordinates	30°48′N 111°18′E / 30.8°N 111.3°E / 30.8; 111.3Coordinates: 30°48′N 111°18′E / 30.8°N 111.3°E / 30.8; 111.3
Approximate paleocoordinates	27°36′N 160°12′E / 27.6°N 160.2°E / 27.6; 160.2
Region	Hubei
Country	China
Extent	Yangtze Gorges
Yanjiahe Formation (China) Yanjiahe Formation (Hubei) Show map of ChinaShow map of HubeiShow all

The Yanjiahe Formation is a Cambrian fossiliferous geologic formation found in South China.^[1][2]

Fossil content[]

Among others, the following fossils were found in the formation:^[2]

References[]

Bibliography[]

• Topper, Timothy P.; Junfeng Guo; Sébastien Clausen; Christian B. Skovsted, and Zhifei Zhang. 2019. A stem group echinoderm from the basal Cambrian of China and the origins of Ambulacraria. Nature Communications 10. 1366. doi:10.1038/s41467-019-09059-3 ISSN 2041-1723 PMC 6433856 PMID 30911013
• Dong, Lin; Shuhai Xiao; Bing Shen; Chuanming Zhou; Li Guoxiang, and Jinxian Yao. 2009. Basal Cambrian Microfossils from the Yangtze Gorges Area (South China) and the Aksu Area (Tarim Block, Northwestern China). Chemical Geology 83. 30–34. Accessed 2014-08-15. doi:10.1666/07-147R.1
• Guo, J.; Y. Li; J. Han; X. Zhang; Z. Zhang; Q. Ou; J. Liu; D. Shu, and S. Maruyama and T. Komiya. 2008. Fossil association from the Lower Cambrian Yanjiahe Formation in the Yangtze Gorges area, Hubei, south China. 82. 1124–1132.

Further reading[]

• J. Guo, Y. Li, and G. Li. 2014. Small shelly fossils from the early Cambrian Yanjiahe Formation, Yichang, Hubei, China. Gondwana Research 25:999-1007
• P. Chen. 1984. Discovery of Lower Cambrian small shelly fossils from Jijiapo, Yichang, west Hubei and its significance. Professional Papers of Stratigraphy and Palaeontology 13:49-64