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 Lobatiradiata Afanasieva & Amon, 2005
         Family †Patulibracchiidae Pessagno, 1971
           1 Genus †Archaeotritrabs Steiger, 1992
           2 Genus †Ditrabs Baumgartner, 1980
           3 Genus †Halesium Pessagno, 1971
           4 Genus †Homoeoparonaella Baumgartner, 1980
           5 Genus †Neoparonaella Yang, 1993
           6 Genus †Patulibracchium Pessagno, 1971
           7 Genus †Pessagnobracckia Afanasieva & Amon, 2005, nom. null. see Genus Pessagnobrachia Kozur & Mostler, 1978
           8 Genus †Trimanicula Dumitrica, 1991
           9 Genus †Tritrabs Baumgartner, 1980