Class Nodosariata Mikhalevich, 1992 Subclass Hormosinana Mikhalevich, 1992 Order Hormosinida Mikhalevich, 1980 Superfamily Hormosinoidea Haeckel, 1894 Family Reophacidae Cushman, 1910 Subfamily Bireophacinae Mikhalevich, 2003 [monotypic] 1 Genus Bireophax Bolli, 1961