Synthetic chart with the latitudinal tectonostratigraphic evolution of the necking crustal domain of the eastern margin of the Red Sea showing the main environments, lithologies and basin architectures through time. Seismic units and onshore volcanism are also shown. See Figure 2A for coastal basin location. M: Midyan, D: Duba, A: Azlam, U: Umluj, Y: Yanbu, J: Jeddah, G: Ghawwas, T: Tihama.