A micropalaeontological study of the Upper Jurassic and Lower Cretaceous of Southern Iran
This study presents the micropalaeontological and biostratigraphical results of a microscopical investigation of the microfossil content of some 6000 thin-sections of rocks of the Khami Group (Jurassic-Lower cretaceous) as represented in Southern Iran, which forms part of the autochthonous zone of the Zagros-ranges. Representatives of the different microfossil groups (sometimes indicating contemporaneous facies) have been described, and illustrated in a Generalised Range Chart, detailed Distribution Abundance Charts, etc., accompanied by 240 photomicrographical Illustration Plates. Many species and varieties are recorded as new, or represent the first record from the Middle East region. An attempt has been made to locally correlate 18 surface outcrops (measured and sampled), by using 10 Biostratigraphical Zones; and to recognise these microfaunal zones of Oman, Arabia, in Southern Iran. A close relationship between S. Iranian Jurassic and Lower Cretaceous microfossils, and those of other parts of the Tethys seem to have existed during the greater part of these times. The abundance and variety of these microfossils have provided excellent material for biostratigraphical zonation, age determination, and correlation.