Sigmavirgulina tortuosa (Brady, 1881)

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The specimen is provided by Wafa'a Mugahed Ahmed Al-Qadassi

University of Sana'a, Yemen Earth and environmental sciences department, petroleum and stratigraphy branch

found during cruises in the sea north of Socotra, Yemen

View of one specimen of Sigmavirgulina tortuosa (Brady, 1881)

SEM picture taken together with Dr. Rosenfeldt
head of the Mikrobiologische Vereinigung Hamburg

The classification is based upon: Alfred R. Loeblich and Helen Tappan, March 1994: Foraminifera of the Sahul Shelf and Timor Sea in Journal of Foraminiferal Research, Special Publications 31