Diagnosis
provided by World Register of Marine Species
Test palmate, flattened, periphery rounded, biserial and sigmoidal arrangement of broad and low chambers that increase rapidly in breadth but very little in height, sutures strongly oblique, depressed; wall calcareous, hyaline and translucent, finely perforate, surface smooth; aperture terminal, radiate, somewhat elongate, bordered by a narrow hyaline collar and provided with a short, narrow, and tapering central entosolenian tube. Holocene; Gulf of California, at 60 m. (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.
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