Crustacean microcoprolites from Lower Cretaceous and Oligo-Miocene deposits, Persian Gulf, Iran

Biostratigraphical observations in different locations and horizons of carbonate strata from four oil wells drilled in the Persian Gulf Basin document three new ichnospecies of crustacean microcopro-lites. Favreina irannensis n. sp. occurs in Valanginian-hauterivian strata of the Buwaib Formation (Gadvan Formation), Palaxius asmariensis n. sp. in the Lower Miocene strata of the Asmari Formation, and Palaxius minaensis n. sp. in the Aptian strata of the Dariyan Formation.