Cercozoa Cavalier-Smith, 1998
   Filosa T. Cavalier-Smith & E.E.-Y. Chao, 2003
     Thecofilosea T. Cavalier-Smith & E.E.-Y. Chao, 2003
       1 Ebriida Deflandre, 1936
       2 Phaeodaria Haeckel, 1879