Additionally, it offers an important unique geological information about the Ediacaran and Paleozoic rock units in Egypt. It unifies the nomenclature of Paleozoic rock units that take numerous names for the same geological time. It obsoletes the formation names that do not follow the rules of the North American stratigraphic code (1983) for rock units’ nomenclature. It provides the target audience illustrations, e.g. field photographs for the exposed rock units that save efforts and time for audience (undergraduate, post-graduate, researchers and professional) to reach to the original localities of each rock units. It provides the audience with schematic diagrams that exhibit the link between the exposed and subsurface rock units all over the Egyptian territory. It describes the following topics of each rock unit: definition, stratigraphic contact, lithological characteristics, faunal and floral associations that are used for the identification of the possible age, correlation with corresponding rock units in adjacent countries, e.g. Libya, Jordan, Iraq and Saudi Arabia and the possible depositional environments for each rock units. weiterlesen