Rugotruncana circumnodifer  (Finlay, 1940)
 
Class: Rotaliata  Subclass: Globigerinana  Order: Globigerinida  Family: Globotruncanidae
 
 
   off Argentina   off territorial waters
 
Sites 698 and 700
Geological Time: Cretaceous  Upper Cretaceous  Maastrichtian
 
the images are published under public domain in the below cited scientific report of the
 
View of a specimen of Rugotruncana circumnodifer  (Finlay, 1940)

scale bar 50µm
 
The identification is based upon:
 Huber, Brian T., 1991: Planktonic foraminifer biostratigraphy of Campanian-Maestrichtian sediments from Sites 698 and 700, southern South Atlantic Ciesielski, P.F. et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results 114 Publisher: Texas A & M University, Ocean Drilling Program, College Station, TX, United States   Plate 2, Fig. 5
 
 
genus.php?no=1009785&aktion=suche
 
dataset number: FEU-1009785
 
 
Citation:
Huber, Brian T., 1991: Planktonic foraminifer biostratigraphy of Campanian-Maestrichtian sediments from Sites 698 and 700, southern South Atlantic Ciesielski, P.F. et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results 114 Publisher: Texas A & M University, Ocean Drilling Program, College Station, TX, United States Plate 2, Fig 5