From editor or global species database
Diagnosis Test with chambers in predominantly dextral low to high trochospiral coil, or may be nearly planispiral; interior of chambers divided by double transverse partition resulting from infolding of the wall that forms small supplementary chambers on one or both sides of test or with primary and secondary chambers in distinct series; aperture interiomarginal or elongate loopshaped or both and may have additional areal or sutural supplementary openings, septal foramen homologous with part of the primary aperture. Paleocene to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]