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 †Astroentactiniidae Nazarov & Ormiston, 1985 Subfamily †Multisphaerinae Nazarov & Afanasieva, 2000 Genus †Calella Won, 1983