Diagnosis
provided by World Register of Marine Species
Test attached, chambers subrectangular to rounded, irregular in form, flattened, uniserial, sutures straight to slightly curved, depressed, peripheral margin lobulate; wall calcareous, thin, hyaline, distinctly perforate; aperture terminal, rounded, slightly produced, bordered by a narrow lip. Holocene; E. Pacific: off Colombia and Peru, at 40 m to 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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