Lawa, F. A.; Al Omari, F. S.; Al Radwani, M. (1986). Restudy of the genus Gyroconulina Schroeder and Darmoian. Journal of the Geological Society of Iraq. 19(3): 77-82.
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Lawa, F. A.; Al Omari, F. S.; Al Radwani, M.
1986
Restudy of the genus Gyroconulina Schroeder and Darmoian