off Brazil Brazil
Geological Time: Neogene Pliocene
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View of a specimen of Sphaeroidinellopsis sphaeroides Lamb, 1969
spiral view
The identification is based upon:
Bolli, H. M., Saunders, K. Perch-Nielsen, editors, 1985: Plankton stratigraphy Cambridge University Press 599 pp. Plate 38, Fig. 4-5
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