WoRMS taxon details
From editor or global species database
Diagnosis Test elongate, early stage streptospirally enrolled, with distinctly endothyroid chambers, later becoming nearly planispiral and then uncoiled with a biserial stage of greater or lesser importance; wall calcareous, microgranular to coarsely granular, undifferentiated; aperture simple, basal in both the enrolled and biserial stage. L. Carboniferous (U. Tournaisian to M. Visean); USSR. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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