Fusulinidae von Möller, 1878 (*2159), p. 133.Fusulinina Lankester, 1885 (*1790), p. 848.

Fusulinida Haeckel, 1894 (*1355), p. 185.Fusulininae Delage and Hérouard, 1896 (*926), p. 148. Fusulinellidae Solov\'eva. 1969 (*3023), p. 38 (nom. transl. ex subfamily).

Fusiform to subcylindrical test planispirally coiled throughout or with early whorls at a distinct angle from the later plane of coiling; septa flat to fluted; tunnel single, chomata weak to massive; spirotheca of tectum and upper and lower tectoria, or of tectum and diaphanotheca. U. Carboniferous (Moscovian) to U. Permian (Murgabian).