Abstract:According to previous work on stratigraphy and palaeontology, fourteen Cambrian marine red beds can be recognized from Western Hills, Beijing. They are: Early Cambrian B∈RB1 (Tsanglangpu Stage), Early Cambrian to early Middle Cambrian B∈RB2~4 (Longwangmiao Stage to Maozhuang Stage), Middle Cambrian B∈RB5~7 (Hsuchuang Stage=Xuzhuang Stage), B∈RB8 (Zhuangxia Stage), Late Cambrian B∈RB9, 10 (Gushan Stage), B∈RB11~13 (Changshan Stage) and B∈RB14 (Fengshan Stage). All of them were deposited in epicontinental seas and they are of shelf red beds (SRBs). Their distribution pattern indicates that the marine red beds owe their origin to the nearby oldlands. Based on the trilobite fossils contained in the marine red beds and the upper and lower layers of the marine red beds, this paper preliminarily discusses the general ages of the marine red beds and makes an accurate correlation with the coeval marine red beds in the other regions of China. Besides, the distribution of the Cambrian marine red beds from the east part of Shanxi Province and the global spatial distribution of Early Cambrian (Tsanglangpu Stage) marine red beds are discussed. The marine red beds of Early Cambrian (Tsanglangpu Stage) widely spread not only in North China and South China, but also in D. P. R. of Korea, R. of Korea, Australia, Pakistan, Jordan, Israel, Turkey, Spain, the United Kingdom, the United States of America and Argentine.