Deep-Sea taxon details
From editor or global species database
Diagnosis Test with two chambers per whorl, early stage with chambers added in planes slightly less than 180¡ apart, the angle gradually increasing until chambers are added in a single plane, later stage may have more than two chambers per whorl. Eocene to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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