| Cuneus Temporal range: mid Late Cretaceous to Paleocene | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Clade: | Sar |
| Clade: | Rhizaria |
| Phylum: | Retaria |
| Subphylum: | Foraminifera |
| Class: | Globothalamea |
| Order: | Rotaliida |
| Family: | Turrilinidae |
| Genus: | † Cuneus Voloshina, 1974 |
Cuneus is a genus of Foraminifera in the Rotaliida found in Upper Cretaceous (Coniacian) to Paleocene marine sediments throughout the boreal regions.
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.