Phylum Radiolaria Müller, 1858
see Subphylum Radiozoa Cavalier-Smith, 1987
Superclass Polycystina Ehrenberg, 1838
see Superclass Polycystinia Ehrenberg, 1838
Class Sphaerellaria Haeckel, 1881
Order Entactiniata Kozur & Mostler, 1982
Family †Entactiniidae Riedel, 1967
1 Subfamily †Entactiniinae Riedel, 1967
2 Subfamily †Bientactinosphaerinae Afanasieva, 1999
3 Subfamily †Thecentactiniinae Afanasieva, 1999