Plate 37. PORTICULASPHAERA, CATAPSYDRAX, GLOBIGERINATHEKA, 

 GLOBOROTALOIDES, GLOBOROTALIA 



(All figures X 73) 



Figures la, b. Porticulasphaera mexicana (Cushman) 165 

 la, Spiral view of hypotype (USNM PS728). 

 lb, Side view. From the Poriiculasphaera mexi- 

 cana zone, Navet formation, Trinidad. 

 Figures 2a-5b. Catapsydrax echinatus Bolli, new 165 

 species 



2a, Spiral view of holotype (USNM P5729). 

 2b, Umbilical view. 2c, Side view. 3a, Spiral 

 view of paratype (USNM P5730a). 3b, Umbili- 

 cal view. 3c, Side view. 4, Side view of small 

 paratype (USNM P5730b). 5a, Spiral view of 

 paratype (USNM P5730c). 5b, Umbilical view, 

 showing thin-walled bulla without spines. All 

 from the Poriiculasphaera mexicana zone, Navet 

 formation, Trinidad. 

 Figures 6a, b. Catapsydrax cf. dissimilis (Cushman 166 

 and Bermudez) 



6a, Spiral view (USNM P5731); 6b, Umbilical 

 view. From the Globigerapsis semiinvoluta zone, 

 Navet formation, Trinidad. 

 Figures 7a, b. Catapsydrax unicavus Bolli, Loeblich, 166 

 and Tappan 



7a, Spiral view of hypotype (USNM P5732). 

 7b, Umbilical view. From the Truncorotaloides 

 rohri zone, Navet formation, Trinidad. 

 Figures 8, 9. Globigerinatheka harri Bronnimann 166 

 8, Hypotype (USNM P5733a), with only one 

 of the 3 sutural apertures visible in the figure, 

 covered by a small sutural bulla. 9, Hypotype 

 USNM P5733b), with all sutural apertures cov- 

 ered by large sutural bullae. Both from the 

 Porticulasphaera mexicana zone, Navet formation, 

 Trinidad. 

 274 



Figures lOa-12. Globorotaloides suteri Bolli 166 



10a, Spiral view of hypotype (USNM P5734a). 

 10b, Umbilical view, showing much reduced final 

 chamber which covers only small area of the 

 umbilicus. lOc, Side view. 11, Umbilical view 

 of hypotype (USNM P5734b). 12, Umbilical 

 view of hypotype (USNM P573-lc). All from the 

 Porticulasphaera mexicana zone, Navet formation, 

 Trinidad. 

 Figures 13a-c. Globorotalia broedermanni Cushman 167 

 and Bermudez 



13a, Spiral view of hypotype (USNM P5735). 

 13b, Umbilical view. 13c, Side view. From the 

 Globorotalia palmerae zone, Navet formation, 

 Trinidad. 

 Figures 14a-16. Globorotalia bolivariana (Petters) 169 

 14a, Spiral view of hypotype (USNM P5736a). 

 14b, Umbilical view. 14c, Side view. 15a, 

 Spiral view of hypotype (USNM P5736b). 15b, 

 Umbilical view. 15c, Side view. 16, Umbilical 

 view of hypotype (USNM P5736c). All from 

 the Porticulasphaera mexicana zone, Navet forma- 

 tion, Trinidad. 

 Figures 17a-c. Globorotalia pseudomayeri Bolli, new 167 

 species 



17a, Spiral view of holotype (USNM P5737). 

 17b, Umbilical view. 17c, Side view. From the 

 Hantkenina aragonensis zone, Navet formation, 

 Trinidad. 

 Figures 18a-c. Globorotalia aspensis (Colom) 166 



18a, Spiral view of hypotype (USNM P5738). 

 18b, Umbilical view. 18c, Side view. From 

 the Globorotalia palmerae zone, Navet formation, 

 Trinidad. 



