Comparative analysis revealed that at least half of the excavated pottery originated from southern Mesopotamia , mainly from the sites of Eridu , Ur and Tell al - ` Ubaid .
The two most extensive Ubaid sites in the peninsula are found in Al Da'asa and Ras Abrouq .
Comparative analysis revealed that at least half of the excavated pottery originated from southern Mesopotamia , mainly from the sites of Eridu , Ur and Ubaid         .
The two most extensive Ubaid sites in the peninsula are found in Al Da'asa and Ras Abrouq .