56 UPPER CRETACEOUS-LOWER TERTIARY FORAMINIFERA 



Plummer. Although he did not figure all his forms, analysis of his figures and 

 descriptions showed that : 



1. G. angulata (White) probably belongs to Globorotalia occlusa Loeblich & 



Tappan, while G. quadrata Nakkady & Talaat belongs to Globorotalia 

 angulata angulata (White). 



2. G. simulatilis (Schwager) is probably Globorotalia acuta Toulmin. 



3. G. velascoensis (Cushman) is probably G. angulata abundocamerata Bolli. 



4. G. pseudobulloides Plummer is probably a transitional stage between Globoro- 



talia trinidadensis Bolli and Globorotalia pseudobulloides (Plummer) . 



5. G. quadrata White is probably Globorotalia pseudobulloides (Plummer), and his 



G. triloculinoides Plummer is Globigerina triloculinoides parva subsp. nov. 

 Moreover, his record of Globigerina quadrata White and G. triloculinoides 

 Plummer throughout the Upper Cretaceous-basal Tertiary succession 

 points to the possibility that he had lumped apparently similar Rugoglobi- 

 gerina and Hedbergella forms with these species and thus extended their 

 ranges. 



Nakkady & Osman (1954) briefly discussed the genus Globotruncana in Egypt and 

 its value in stratigraphical zonation, basing their discussion on the Maestrichtian 

 sections, previously studied by Nakkady (1949, 1950, 1951a, 1952) and on the 

 Campanian-Maestrichtian of Qabeliat and Sudr sections, western Sinai. These 

 authors described seventeen species and four varieties of Globotruncana, most of 

 which were new, but, unfortunately, their descriptions are very short and their 

 figures very poor. These forms were cited as follows : Globotruncana aegyptiaca 

 Nakkady, G. aegyptiaca var. duwi Nakkady, G. aegyptiaca var. /. Nakkady, G. 

 ansarii Nakkady & Osman, G. caliciformis (de Lapparent), G. contusa (Cushman), 

 G. cretacea Cushman, G. esnehensis Nakkady & Osman, G. gansseri Bolli, G. globigeri- 

 noides Brotzen, G. lapparenti Brotzen, G. pooleyi Nakkady & Osman, G. pseudo- 

 fornicata Nakkady & Osman, G. qabeliatensis Nakkady & Osman, G. quadrata 

 Nakkady & Osman, G. quadrata var. plata Nakkady & Osman, G. rosetta (Carsey), 

 G. sudrensis Nakkady & Osman, G. sudrensis var. parallela Nakkady & Osman, 

 G. torensis Nakkady & Osman, and G. ventricosa White. 



The holotypes of these forms need to be re-examined, refigured, and redescribed in 

 more detail so that their true identities can be established, and their relationships to 

 previously described species decided. 



Le Roy (1953) recorded the following planktonic Foraminifera from the Maestrich- 

 tian-Lower Eocene succession of the Maqfi section, Farafra Oasis, Egypt : Globo- 

 truncna canaliculata (Reuss) ; Globigerina esnaensis Le Roy, G. pseudotriloba White, 

 G. subcretacea Lomnicki ; Globorotalia membranacea (Ehrenberg), G. simulatilis 

 (Schwager) and G. velascoensis (Cushman). 



Analysis of his descriptions and figures showed that : 



1. G. canaliculata (Reuss) is most probably Globotruncana area (Cushman). 



2. G. esnaensis Le Roy is a Globorotalia. 



