Biseriamminidae Chernysheva 1941

Family BISERIAMMINIDAE Chernysheva, 1941 Test free, biserially coiled to biseriate, with a few whorls and a few chambers increasing rapidly in height. An oral valvula near the aperture. Supplementary deposits absent or very rare. Supplementary chamberlets occasionally present. Wall unilayered dark microgranular or granular with calcareous agglutinate, or bilayered with an inner pseudofibrous layer. Aperture simple basal. Tournaisian– Visean. Composition: Biseriammina Chernysheva, 1941; Dariopsis Malakhova, 1975; Globochernella Hance, 1983; Lipinella Malakhova, 1975.