A study of Macro Fossils (Bivalvia) From Fat'ha Formation (Middle Miocene) at Shaqlawa area, Northeast of Iraq

Abstract

The bivalvia shell have been systematically described from Fat'ha Formation in the Shaqlawa area at the northern limb of Safen anticline that extended about 50 Km, parallel to the Zagros series which generally trending northwest-southeast direction.More than 20 Sample were collected from the carbonate unit and seven species belonging to six genera and six families were characteristic in the current study representing by: Nuculana minima, Ostera bellovacina, Ostera semiplana, Mytilus edulis, Glycymeris obovata, Parastarte sp. and Pecten sp.This species are indicating that the carbonate beds in the studied section of Fat'ha formation were deposited in the shallow marine between sub to inter tidal environment, under low salinity.