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WoRMS taxon details
From editor or global species database
Description Test small, discoid to inflated, and small- to moderate-sized. Undivided deuteroloculus showing generally two types of coiling with one at least which is planispiral, streptospiral or agathamminoid and involute often becoming evolute in the last whorls. Initial coiling glomospiral/streptospiral, sometimes agathamminoid or quinqueloculine. Lumen of chamber reniform or semicircular. Pseudosepta absent or rarely present in a few taxa. Wall porcelaneous, unilamellar. Aperture terminal, simple, at the extremity of the deuteroloculus.
Vachard and Le Coze (2024). [details]
Diagnosis Test planispirally coiled, involute or evolute, and may uncoil in later stage. U. Carboniferous (Moscovian) to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
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