Plate 10. GLOBOROTALIIDAE 



Page 

 Figures la-c. Rotalipora roberti (Gandolfi) 41 



la, Spiral side of hypotype (USNM P4829) of 

 species selected as type of Ticinella Reichel. lb, 

 Umbilical side, showing extraumbilical-umbilical 

 primary aperture and sutural secondary aper- 

 tures. Ic, Edge view, showing open primary 

 aperture. From the Cenomanian of Switzerland. 

 X ISO. 

 Figures 2a-c. Globorotalia tutnida (Brady) 41 



2a, Spiral side of syntype (USNM P.3143) of 

 type species of Globorotalia. 2b, Umbilical 

 view, showing extraumbilical-umbilical primary 

 aperture with broad apertural flap. 2c, Edge 

 view, showing arched primary aperture. From 

 the post-Tertiary of New Ireland. X 60. 

 Figures 3a-c. Globorotalia truncatulinoides (d'Or- 41 

 bigny) 



3a, Spiral view of topotype (USNM P4S42), 

 showing flattened side. 3b, Edge view, showing 

 extraumbilical-umbilical aperture. 3c, Edge 

 view, showing umbilicoconvex test shape, con- 

 sidered typical of Truncorotalia Cushman and 



Page 

 Bermudez, for which this species was type. The 

 extraumbilical-umbilical aperture is covered by 

 a broad apertural flap. From the Recent off the 

 Canary Islands. X 95. 

 Figures 4a-c. Globorotalia centralis Cushman and 41 

 Bermudez 



4a, Spiral view of holotype (Cushman Coll. 

 23426) of type species of Tiirborotalia Cushman 

 and Bermudez. 4b, Umbilical view, showing 

 extraumbilical-umbilical aperture. 4c, Edge 

 view, showing rounded to ovate chambers, and 

 open arched primary aperture. From the Eocene 

 of Cuba. X 110. 

 Figures Sa-c. Truncorotaloidi-s rohri Bronnimann 42 

 and Bermudez 



5a, Spiral view of holotype (USNM P4233), 

 showing sutural secondary apertures, similar to 

 those of Globigerinoides. 5b, Umbilical view, 

 showing extraumbilical-umbilical primary aper- 

 ture. 5c, Edge view. From the Eocene of 

 Trinidad, B.W.I. X 130. 



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