PLATE 4 



Fig. i. Globotruncana aegyptiaca aegyptiaca Nakkady, from S.16, Gebel Owaina 

 section. 



Axial section of hypotype, approximately x 247, plane polarized light. 



Fig. 2. Globotruncana gagnebini Tilev, from S.17 W. El-Sharawna section. 



Axial section of hypotype, approximately X 210, plane polarized light. 



