WoRMS taxon details
From editor or global species database
Diagnosis Test a high trochospiral coil, all chambers visible on the strongly elevated spiral side, only the final whorl visible around the small deep umbilicus on the umbilical side, sutures radial, nearly straight, periphery rounded; wall calcareous, optical character unknown, finely perforate, surface smooth; aperture an elongate interiomarginal slit, extending from near the periphery to the open umbilicus, bordered with a narrow lip. U. Eocene (Priabonian) to Oligocene; Mexico; USA: Mississippi. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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