Plate 12. ROTALIPORA, PRAEGLOP>(TrRUNCANA 



Page 

 Figures la-c. Rotalipora ticincnsis ticinensis (Gan- 56 

 dolfi) 



la, Spiral view of hypotype (USNM P4792). 

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

 Rotalipora ticinensis ticinensis zone, Gautier for- 

 mation, Trinidad, B.W.I. X 200. 

 Figures 2a-3c. Praeglobotruncana coarctaia Bolli, 55 

 new species 



2a, Spiral view of holotype (USNM P4794). 

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



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view of paratype (USNM P4795). 3b, Side 

 view. 3c, Umbilical view. Both from the (jIo- 

 botruncana stuarti zone, Napariina Mill forma- 

 tion, Trinidad, B.W.I. X 110. 

 FicuRES 4a--c. Praeglobotruncana cf. dclriucnsis 

 (Plummer) 



4a, Spiral view of specimen (USNM P4793). 

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

 Globigerina zvashitensis zone, Gautier formation, 

 Trinidad, B.W.I. X 200. 



24!) 



55 



