Plate 13. GLOBOTRUNCANA 



Page 



Figures la-c. Globotruncana helvetica Bolli 56 



la, Spiral view of hypotype (USNM P4796). 

 lb, Side view. Ic, Umbilical view. From the 

 Globotruncana inornata zone, Naparima Hill for- 

 mation, Trinidad, B.W.I. X 112. 

 Figures 2a-c. Globotruncana repanda Bolli, new 56 

 species 



2a, Spiral view of holotype (USNM P4797). 

 2b, Side view. 2c, Umbilical view. From the 

 Globotruncana stuarti zone, Naparima Hill forma- 

 tion, Trinidad, B.W.I. X 120. 

 Figures 3a-c. Globotruncana concavata (Brotzen) 57 



3a, Spiral view of hypotype (USNM P4798). 

 3b, Side view. 3c, Umbilical view. From the 

 250 



Page 

 Globotruncana concavata zone, Naparima Hill for- 

 mation, Trinidad, B.W.I. X 73. 

 Figures 4a-c. Globotruncana ventricosa White 57 



4a, Spiral view of hypotype (USNM P4799). 

 4b, Side view. 4c, Umbilical view. From the 

 Globotruncana stuarti zone, Naparima Hill forma- 

 tion, Trinidad, B.W.I. X 73. 

 Figures 5a-6c. GloboUuncana inornata Bolli, new 57 

 species 



5a, Spiral view of holotype (USNM P4800). 

 5b, Side view. 5c, Umbilical view. X 102. 

 6a, Spiral view of paratype (USNM P4801). 6b, 

 Side view. 6c, Umbilical view. X 80. Both 

 from the Globotruncana inornata zone, Naparima 

 Hill formation, Trinidad, B.W.I. 



