Cuneus (foram)

Cuneus is a genus of foraminifera in the Rotaliida found in Upper Cretaceous (Coniacian) to Paleocene marine sediments throughout the boreal regions.

Cuneus Temporal range: mid Late Cretaceous to Paleocene
Scientific classification
Domain:	Eukaryota
(unranked):	SAR
(unranked):	Rhizaria
Superphylum:	Retaria
Phylum:	Foraminifera
Order:	Rotaliida
Superfamily:	Turrilinacea
Family:	Turrilinidae
Genus:	Cuneus Voloshina, 1974

The test is pyramidal in form, triserial throughout, with a triangular section, and may be slightly twisted. The test wall is calcareous, transparent. and finely perforate, the surface smooth. Sides are flat to slightly concave; sutures flush and oblique. The aperture is a narrow vertical loop on the apertural face of the final chamber.

References

• Alfred R. Loeblich Jr and Helen Tappan,1988. Forminiferal Genera and their Classification. Van Nostrand Reinhold.