From editor or global species database
Diagnosis Test with triserial and triangular early stage, later may become biserial or uniserial, chambers angular and appressed; wall agglutinated, simple, noncanaliculate; aperture an interiomarginal arch in the early stage and may become terminal in later stage. U. Triassic to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]