Unconformity surfaces have been used to divide the subsurface Triassic sediments of Jordan into five sequences. These sequences show a gradual transition from fluviatile-deltaic sedimentation during the Permian, to mixed sedimentation of sandstones, silty shales and claystones together with shallow-water carbonates from the Scythian to the end of the Ladinian. Anhydritic dolomites and evaporites became prevalent during the Carnian-Norian. Isopach and facies maps for these sequences show that the Triassic sediments of Jordan were deposited in a set of environments which range from fluviatile-deltaic for the coarse-grained clastics; to restricted shelf lagoons and tidal-flat settings for the fine-grained clastics; to a shallow carbonate shelf for the fossiliferous carbonates; and restricted shelf lagoons, sabkhas and salinas for the carbonate-evaporite sequence.