Foraminifera taxon details
From editor or global species database
Diagnosis Test elongate, early chambers as in Vaginulina, with rounded section, later chambers equitant, slightly flattened and may be depressed in the midregion, of nearly constant breadth as added so that marginal overlap of previous chambers is slight, sutures straight and slightly oblique in the early stage, inverted V shaped and moderately depressed in the later stage, periphery rounded to subacute; wall calcareous, perforate radial, surface smooth; aperture terminal, rounded, on a short neck. U. Cretaceous to Eocene (Bartonian); Europe; USA. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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