Figure 15: Paleofacies of the early Late Cretaceous spanning deposition of the Mishrif, Ahmadi, Rumaila, Natih, and Derdere formations, and their regional equivalents [MFS K120 to intra-K150; base of AP9 dated at 92 Ma]. Sediments were deposited on platforms and within intrashelf basins on the passive margin of the Arabian Plate. With information from: Andrews (1992b); Azzam (1995); Béchennec et al. (1995); Bender (1968); Burchette (1993); Cater and Gillcrist (1994); Guiraud et al. (2001); Hirsch (1990); Le Métour et al. (1995); Makhlouf et al. (1996); Murris (1980); Ponikarov et al. (1988); Roger (1989); Walley (1998b); and unpublished Saudi Aramco Miscellaneous Report 826 (D.W. Hagen, 1975). R=Rudist reefs.