Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987 Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838 Class Stauraxonaria Afanasieva & Amon, 2005 Order †Pyramidata Afanasieva & Amon, 2005 Family †Tormentidaeᵀ Nazarov & Ormiston, 1983 Subfamily †Rectotormentinae Afanasieva, 2000 Genus †Rectotormentum Nazarov & Ormiston, 1985