From editor or global species database
Diagnosis Test planispiral and involute; chambers numerous, increasing gradually in height; each chamber with a broad to narrow flap that extends from the umbilicus for some distance over each suture; apertural opening near the midpoint of each flap at its proximal edge. M. Eocene to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]