Diagnosis
provided by World Register of Marine Species
Test attached, early chambers in an irregular planispiral series, later uncoiled, with chambers flattened against the attachment and convex on the free surface, chamber margins irregular; wall finely agglutinated, rather smoothly finished; aperture a large circular opening on the free upper surface, bordered by a slightly elevated lip. Holocene; South America: Drake Straits. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification)
Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp.
- license
- cc-by-4.0
- copyright
- WoRMS Editorial Board
