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

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

• Topper, Timothy P.; Guo, Junfeng; Clausen, Sébastien; Skovsted, Christian B.; Zhang, Zhifei (2019), "A stem group echinoderm from the basal Cambrian of China and the origins of Ambulacraria", Nature Communications, 10 (1): 1366, Bibcode:2019NatCo..10.1366T, doi:10.1038/s41467-019-09059-3, ISSN 2041-1723, PMC 6433856, PMID 30911013
• Dong, Lin; Xiao, Shuhai; Shen, Bing; Zhou, Chuanming; Guoxiang, Li; Yao, Jinxian (2009), "Basal Cambrian Microfossils from the Yangtze Gorges Area (South China) and the Aksu Area (Tarim Block, Northwestern China)", Chemical Geology, 83 (1): 30–34, Bibcode:2009JPal...83...30D, doi:10.1666/07-147R.1, retrieved 2014-08-15
• Guo, J.; Li, Y.; Han, J.; Zhang, X.; Zhang, Z.; Ou, Q.; Liu, J.; Shu, D.; Maruyama and T. Komiya, S. (2008), "Fossil association from the Lower Cambrian Yanjiahe Formation in the Yangtze Gorges area, Hubei, south China", Acta Geologica Sinica, 82 (6): 1124–1132, Bibcode:2008AcGlS..82.1124G, doi:10.1111/j.1755-6724.2008.tb00712.x
• Wang, Deng; Qiang, Yaqin; Guo, Junfeng; Vannier, Jean; Song, Zuchen; Peng, Jiaxin; Zhang, Boyao; Sun, Jie; Yu, Yilun (2024-02-19). Early evolution of the ecdysozoan body plan (Report). doi:10.7554/elife.94709.1.

• 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