WoRMS taxon details
From editor or global species database
Diagnosis Test enrolled and planispiral to slightly asymmetrical; wall perforate, commonly of hyaline oblique calcite and appearing optically granular but rarely may be optically radial; aperture equatorial and interiomarginal, less commonly areal, a group of pores, a series of sutural openings, or a peripheral slitlike opening in each chamber that lies slightly to one side of the periphery. U. Cretaceous (Coniacian) to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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