Hedbergella planispira  (Tappan, 1940)       3   more

Class: Rotaliata  Subclass: Globigerinana  Order: Globigerinida  Family: Hedbergellidae

found in a core of ODP Leg 114 Sites 698 and 700   off Argentina   off territorial waters   Sites 698 and 700

Geological Time: Cretaceous  Upper Cretaceous  Campanian


the images are published under public domain in the below cited scientific report of the IODP, ODP and DSDP

View of a specimen of Hedbergella planispira (Tappan, 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 1, Fig. 7