Foraminifera taxon details
From editor or global species database
Diagnosis Test biserial with tendency to become nearly uniserial in later stage; aperture produced on a neck with phialine lip and internal bandlike toothplate. L. Cretaceous (Albian) to U. Cretaceous (Maastrichtian), ?M. Eocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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