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MarBEF Data System |
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Foraminifera taxon details
From editor or global species database
Diagnosis Test with strongly embracing chambers variously enrolled; aperture an arched slit just above the base of the chamber, giving the appearance of a flaplike tooth, or primary aperture may be absent in adult and replaced by a series of sutural supplementary openings. U. Cretaceous (Maastrichtian) to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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