Two Carboniferous coral assemblages of Ozbak-Kuh and Kalmard areas, Eastern Central Iran (Zaladou and Gachal sections)

Two coral assemblages are described in the Ozbak-Kuh (Zaladou section) and Kalmard (Gachal section) areas. They consist of Tabulata, solitary, fasciculate and massive rugosa corals They clearly belong to the Carboniferous system. The first assemblage consist of Syringopora distans Fischer and Kueichouphyllum cf. yabei Minato and Kueichouphyllum cf. laosense Fontaine that accompanied with the foraminiferas such as Eostaffella pseudostruvei Rauser&Belaiev and Archaeodiscus cf.krestovnikovi Rauser indicate Late Visean to Early Serpukhovian age for the member D of Gachal formation.The second assemblage consist of Minatoa cf bulla Flugel, M. alternata Flugel and Fomichevella smithi Fontaine that suggest Middle Carboniferous(Bashkirian age) for lower part of Sardar Formation .