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MarBEF Data System |
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Foraminifera taxon details
From editor or global species database
Diagnosis Test trochospiral and planoconvex to high trochospiral; aperture extends from periphery to open umbilicus, may be bordered by an apertural flap. U. Cretaceous (Cenomanian) to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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