Diagnosis
provided by World Register of Marine Species
Test trochospiral, umbilical region secondarily closed by a foraminal cover plate that extends into the previous chamber, with radial canals, fissures, or umbilical cavities connecting the chambers, the canal system functioning as an aperture. L. Miocene to Holocene. (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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