[Class] Polycystinea Ehrenberg, 1838 - polycystines
see Superclass Polycystinia Ehrenberg, 1838
Order Spumellaria Ehrenberg, 1875
see Class Spumellaria Ehrenberg, 1875
Family Actinommidae Haeckel, 1862
Genus †Thecosphaerella Haeckel, 1887
1 †Thecosphaerella agdaraensis (Mamedov, 1969)
2 †Thecosphaerella glebulenta Sanfilippo & Riedel, 1973
3 †Thecosphaerella ptomatus Sanfilippo & Riedel, 1973
4 †Thecosphaerella rotunda (Borisenko, 1960)