Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Nassellaria Ehrenberg, 1847
       Order Cyrtidinata Haeckel, 1862
         Superfamily Eucyrtidioidea Ehrenberg, 1847
           Family Eucyrtidiidae Ehrenberg, 1847
             Subfamily Eucyrtidiinae Ehrenberg, 1847
               01 Genus Acanthocyrtis Haeckel, 1881
               02 Genus Artocapsa Haeckel, 1881
               03 Genus Artocyrtis Haeckel, 1887
               04 Genus Artophormis Haeckel, 1881
               05 Genus Clathropyrgus Haeckel, 1881
               06 Genus †Cyrtocapsella Haeckel, 1887
               07 Genus †Cyrtocapsoma Haeckel, 1887
               08 Genus Cyrtophormis Haeckel, 1887
               09 Genus Cyrtophormiscus Haeckel, 1887
               10 Genus Eucyrtidium Ehrenberg, 1847
               11 Genus Eusyringoma Haeckel, 1887
               12 Genus Glomaria Sanfilippo & Riedel, 1970
               13 Genus Immersothorax Dumitrica, 1970
               14 Genus Lithocampe Ehrenberg, 1838
               15 Genus †Lithomitrissa Haeckel, 1887
               16 Genus Lithopera Ehrenberg, 1847
               17 Genus Spirocyrtoma Haeckel, 1887
               18 Genus Stychocorys nom. null. see Genus Stichocorys Haeckel, 1881
               19 Genus Stichopodium Haeckel, 1881
               20 Genus Stichopterygium Haeckel, 1881
               21 Genus Syringium Principi, 1909
               22 Genus Theocampe Haeckel, 1887
               23 Genus Trocolocamptra Afanasieva & Amon, 2005 nom. null. see Genus Tricolocamptra Haeckel, 1887