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:
(unranked):
(unranked):
Superphylum:
Phylum:
Order:
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

    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.