Phylum Radiolaria Müller, 1858
see Subphylum Radiozoa Cavalier-Smith, 1987
Superclass Polycystina Ehrenberg, 1838
see Superclass Polycystinia Ehrenberg, 1838
Class Nassellaria Ehrenberg, 1847
Order Cyrtidinata Haeckel, 1862
Superfamily Acropyramidoidea Haeckel, 1881
Family †Bulbocyrtiidae Kozur & Mostler, 1981
1 Genus †Bulbocyrtium Kozur & Mostler, 1981
2 Genus †Quasipetasus Blome, 1984
3 Genus †Pessagnocyrtium Kozur & Mostler, 1981