Nomenclature
original description
Loeblich, A. R.; Tappan, H. (1984). Suprageneric Classification of the Foraminiferida (Protozoa). <em>Micropaleontology.</em> 30(1): 1-70., available online at https://doi.org/10.2307/1485456 [details] Available for editors
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From editor or global species database
Diagnosis Test elongate, tubular to fusiform, open at both ends, nonseptate but commonly with transverse growth constrictions; wall very finely agglutinated, surface smoothly finished; openings small, rounded, terminal, larger at one extremity. L. Pennsylvanian, Permian, Oligocene, Miocene, Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]