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MarBEF Data System |
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WoRMS taxon details
From editor or global species database
Diagnosis Test with two chambers per whorl, five or more chambers visible externally in the adult; early chamber arrangement quinqueloculine, later chambers may be added in fewer or more than five planes; chamber interior not subdivided; aperture at the end of the final chamber, rounded, or with flap, simple or complex tooth. Jurassic to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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