[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847
     Family Theoperidae Haeckel, 1881
       01 Genus †Anthocorys Haeckel, 1881
       02 Genus †Anthocyrtella Haeckel, 1887
       03 Genus †Anthocyrtoma Haeckel, 1887
       04 Genus †Aphetocyrtis Sanfilippo & Caulet, 1998
       05 Genus †Artophormis Haeckel, 1881
       06 Genus Artopilium Haeckel, 1881
       07 Genus Artostrobus Haeckel, 1887
       08 Genus Bathropyramis Haeckel, 1881
       09 Genus †Bekoma Riedel & Sanfilippo, 1971
       10 Genus †Bekomiforma Sanfilippo & Riedel, 1974
       11 Genus †Buryella Foreman, 1973
       12 Genus Calocyclas Ehrenberg, 1847
       13 Genus †Calocycloma Haeckel, 1887
       14 Genus †Cassideus Pessagno, 1969
       15 Genus Clathrocyclas Haeckel, 1881
       16 Genus †Clathrocycloma Haeckel, 1887
       17 Genus †Clathropyrgus Haeckel, 1881
       18 Genus †Clinorhabdus Sanfilippo & Caulet, 1998, nom. illeg.
       19 Genus Conarachnium Haeckel, 1881
       20 Genus Conicavus Takahashi, 1991
       21 Genus Cornutella Ehrenberg, 1839
       22 Genus †Cycladophora Ehrenberg, 1847
       23 Genus †Cymaetron Caulet, 1991
       24 Genus †Cyrtocapsella Haeckel, 1887
       25 Genus Cyrtolagena Haeckel, 1887
       26 Genus †Dictyocephalus Ehrenberg, 1860
       27 Genus Dictyocodon Haeckel, 1881
       28 Genus †Dictyomitra Zittel, 1876
       29 Genus Dictyophimus Ehrenberg, 1847
       30 Genus †Dictyopodium Ehrenberg, 1847
       31 Genus †Diplocyclas Haeckel, 1881
       32 Genus Eucecryphalus Haeckel, 1860
       33 Genus Eucyrtidium Ehrenberg, 1847
       34 Genus †Eurystomoskevos Caulet, 1991
       35 Genus †Eusyringium Haeckel, 1881
       36 Genus Gondwanaria Petrushevskaya, 1975
       37 Genus Lampromitra Haeckel, 1881
       38 Genus †Lamptonium Haeckel, 1887
       39 Genus Lipmanella Loeblich & Tappan, 1961
       40 Genus †Lithapium Haeckel, 1887
       41 Genus Litharachnium Haeckel, 1860
       42 Genus †Lithocampana Clark & Campbell, 1942
       43 Genus †Lithochytris Ehrenberg, 1847
       44 Genus †Lithomitrissa Haeckel, 1887
       45 Genus Lithopera Ehrenberg, 1847
       46 Genus Lithostrobus Bütschli, 1881
       47 Genus †Lophoconus Haeckel, 1887
       48 Lophocorys polyacantha Popofsky, 1913
       49 Genus Lophocyrtis Haeckel, 1887
       50 Genus †Lychnocanium Ehrenberg, 1847
       51 Genus †Lychnocanoma Haeckel, 1887
       52 Genus †Orbula Foreman, 1973
       53 Genus Peripyramis Haeckel, 1881
       54 Genus †Phormocyrtis Haeckel, 1887
       55 Genus Phrenocodon Haeckel, 1887
       56 Genus Plectopyramis Haeckel, 1881
       57 †Podocyrtis schomburgkii var. Bury, 1862
       58 Genus Pterocanium Ehrenberg, 1847
       59 Genus †Pterocodon Ehrenberg, 1847
       60 Genus †Pterocyrtidium Bütschli, 1881
       61 Genus †Rhopalocanium Ehrenberg, 1847
       62 Genus †Sethochytris Haeckel, 1881
       63 Genus Sethoconus Haeckel, 1887
       64 Genus Stichocampe Haeckel, 1881
       65 Genus †Stichocorys Haeckel, 1881
       66 Genus Stichopilidium Haeckel, 1887
       67 Genus Stichopilium Haeckel, 1881
       68 Genus Theocorys Haeckel, 1881
       69 Genus †Theocotyle Riedel & Sanfilippo, 1970
       70 Genus †Theocotylissa Foreman, 1973
       71 Genus Theopilium Haeckel, 1881
       72 Genus †Thyrsocyrtis Ehrenberg, 1847
       73 Genus †Udan Renz, 1976
       74 Genus †Valkyria O'Connor, 1997