Foraminifera taxon details
From editor or global species database
Diagnosis Test large, elongate, subcylindrical, poles broadly rounded, five to eight low, closely coiled whorls, septal fluting with long and low folds restricted to the lower part of the septa and forming low cuniculi; wall of tectum and thin alveolar keriotheca, earliest one or two volutions may have rudimentary chomata bordering the single tunnel, later whorls lack chomata, axial deposits massive, especially near the poles. L. Permian (M. Wolfcampian) to M. Permian (Kungurian), Guadalupian; USSR; India; Japan; Timor; Canada; USA: Texas, Nevada. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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