Keywords : Arabian Gulf

Some Recent Gastropoda From Khor Al-Zubair, Northwestof Arabian Gulf

Ramzi K. Al-Naser Mohammed W. Al-Abbasi Ali H. Elewi

Iraqi National Journal of Earth Sciences, 2010, Volume 10, Issue 1, Pages 19-30

ABSTRACT Khor Al-Zubair channel is a shallow arm of the Arabian gulf, it is located between shatt Al-Basrah from the north west and the Arabian gulf at the south east. Six species belonging to six genera and four families were identified in this study. These are; Euchelus (Euchelus) asper, Clypeomorus clypeomorus, Hexaplex (Muricanthus) kusterianus, Murex (Murex) tribulus, Nassarius (Nassarius) arcularius and Thais sp. The presences of there in a sandy and muddy sediments is more likely indicate that their distribution occur between the Sub to the Middle littoral environment of Khor Al-Zubair channel with depth ranging between (1-15m).

Distribution and Evolutionary Trends of The Upper Tertiary OstracodeArabian Gulf.Cretaceous- Lower From Iraq and Arabian Gulf.

Nisreen M. Aziz

Iraqi National Journal of Earth Sciences, 2004, Volume 4, Issue 1, Pages 74-85

The Ostracode biostratigraphic evidence and the evolutionary trend of Upper Cretaccous-Lower Tertiary Ostracodes are determinated by using the vertical and lateral distribution and the morphological change of the selective genera and species.
Anommatocythere; Brachycythere; Buntonia; Kaesleria; Mehsella; Nucleolina and Protobuntonia.
The evidence determinated by the study of the above taxa of this time showes closely resemblance in their morphalogical features and suddenly disappears during the Upper Cretaceous of the genera:
Brachycythere; Kaesleria; Mehsella; Protobuntonia and other species continue in the Lower Tertiary, Buntonia; Mehsella and Nucleolina. Otherwise species of Anommatocythere show first appear during the Lower Tertiary .