Z08 IM'PER CRETACEOUS-LOWER TERTIARY FORAMINIFERA 



that G. ehrenbergi has possibly evolved from G. imitata Subbotina ; extremely 

 compressed forms of G. imitata closely resemble G. ehrenbergi and may be transitional 

 to it. 



Again, as previously mentioned above (pp. 204, 205), Loeblich & Tappan (1957a : 

 188) included G. ehrenbergi in their synonymy of G. compressa, but the stratigraphical 

 ranges and morphological characterisitcs of the two species substantiate their 

 separate identity. 



Hypotype. P. 45605. 



Horizon and locality. Figured specimen, from sample No. 37, Gebel Owaina 

 section. 



Stratigraphical range. The species was described by Bolli (19576) from the 

 Paleocene, lower Lizard Springs formation of Trinidad, where it was found to range 

 throughout the G. pusilla pusilla Zone and the lower part of the G. pseudomenardii 

 Zone, here considered as upper Middle Paleocene-lower Upper Paleocene respectively. 



It was recorded from almost the same horizon in the Paderno d'Adda section of 

 northern Italy (Bolli & Cita 1960a, 6), from the Paleocene Madruga formation of 

 Cuba (Cushman & Bermudez 1949) as G. membranacea (Ehrenberg) , the Paleocene of 

 the Caucasus region (Subbotina 1953), the Lower Paleocene of Nekhl section, 

 northern Sinai, Egypt (Said & Kenawy 1956), and from the Danian-Landenian of 

 Austria (Hillebrandt 1962) : this last author apparently confused G. ehrenbergi with 

 various other forms as can be seen from his figures. 



In the Esna-Idfu region G. ehrenbergi appears in the Upper Danian and continues 

 as a rare to common form to the basal part of the Upper Paleocene G. pseudomenardii 

 Subzone. 



Globorotalia emilei sp. nov. 

 (PL 17, figs, ga-c) 



? 1936 Globigerina compressa Plummer ; Jennings : 193, pi. 4 (31), fig. 8. 



? 1941 Globigerina compressa Plummer ; Toulmin : 607, pi. 82, figs. 1, 2. 



? 1942 Globigerina compressa Plummer ; Cushman & Todd (pars) : 44, pi. 8, fig. 6 ; non fig. 5. 



? 19526 Globigerina compressa Plummer ; Bronnimann : 25, pi. 2 (12), figs. 19-24. 



1953 Globorotalia membranacea (Ehrenberg) ; Le Roy : 32, pi. 3, figs. 13-14. 



1953 Globigerina compressa Plummer ; Hamilton : 221, pi. 31, figs. 14, 15. 



19576 Globorotalia elongata Glaessner ; Bolli : 77-78, pi. 20, figs. 11-13. 



1957a Globorotalia elongata Glaessner ; Loeblich & Tappan (pars) : 189, pi. 45, figs. 5«-c ; 

 pi. 46, figs. $a-c ; ? pi. 49, figs, ja-c ; pi. 54, figs. ia-^c ; pi. 59, figs. \a-c ; pi. 60, figs. 

 ga-c ; non pi. 48, figs. 5«-c ; pi. 54, figs. 5«-c ; pi. 63, figs. za-c. 



i960 Globorotalia elongata Glaessner ; Olsson : 45-46, pi. 9, figs. 4-6. 



Diagnosis. A Globorotalia with elongate, very low trochospiral, slightly com- 

 pressed test ; subrounded to subacute axial periphery ; crescentic, rapidly enlarging 

 chambers in last whorl ; curved, depressed, dorsal sutures and nearly radial, incised 

 ventral ones ; smooth surface and wide, open umbilicus. 



Description. Test medium sized, unequally biconvex, compressed, coiled in a 

 very low trochospire ; dorsal side almost flat although the chambers, especially the 



