FUSULININAE Möller, 1878

Subfamily FUSULININAE Möller, 1878 View in CoL

Test medium to large, fusiform to subcylindrical, less often elongate-ovoid, in early stage fusiform or shortovoid; coiling from tight to fairly loose; wall usually four-layered with a clear diaphanotheca, sometimes the tectoria are poorly expressed, porous septa usually strongly folded; chomata, constant in early stage, in external whorls often replaced by pseudochomata, sometimes absent; secondary deposits in the form of axial fillings; aperture often narrow, less often moderate, usually with a constant position.

Composition: Fusulina Fischer de Waldheim, 1829 ; Bartramella Verville, Thompson & Lokke, 1956 ; Hemifusulina Möller, 1877 ; Hemifusulinella

Rumyantseva, 1962; Kamaina Solovieva in Rauzer-Chernousova et al., 1996; Pseudotriticites Putrya, 1940 ; Undatafusulina Leven, 1998 .