From editor or global species database
Diagnosis Test trochospiral, biconvex, spiral side coarsely perforate, opposite side with closed umbilicus and central boss; wall optically radial, sparsely perforate or without pores; aperture a low interiomarginal and equatorial opening bordered by a narrow lip. Paleocene to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]