Thick sequences of upper Cambrian (Furongian) microbialites have now been documented from North America, China, Korea, Russia, Australia, Iran, Argentina, Kyrgyzstan, and Antarctica. Since many creationists believe that Cambrian rocks were deposited in the Noahic Flood, then this would naturally imply that these thick sequences grew in less than one year. In this paper, the upper Cambrian microbialites from North America, China, and Korea are described in detail, and subsequently interpreted as in situ environments representative of time frames greater than that of the year-long Flood. This paper suggests that Cambrian microbialite assemblages grew in place during antediluvian time, and that the Great Unconformity is but one of many formed during Creation Week.