Late Campanian ammonites from the Saiwan area (Huqf Desert, Sultanate of Oman)

Recently collected ammonite faunules from the Samhan Formation (Aruma Group) exposed south of Saiwan (Huqf Desert, Sultanate of Oman) comprise three species, Kitchinites angolaensis Howarth, 1965, Pachydiscus (P.) arabicus Kennedy and Jagt sp. nov., and Manambolites dandensis Howarth, 1965. These taxa allow the middle and upper members of this formation to be dated as Late Campanian, based on the stratigraphic ranges of the ammonite taxa elsewhere (Israel, Angola). A previous age assignment (Early Campanian) to this formation was based primarily on foraminiferal and calcareous nannoplankton dating of the overlying Fiqa Formation. (C) 2000 Academic Press