Phylum Cercozoa Cavalier-Smith, 1998
   Subphylum Filosa T. Cavalier-Smith & E.E.-Y. Chao, 2003
     Superclass Reticulofilosa Cavalier-Smith, 1997 see Subphylum Reticulofilosa Cavalier-Smith, 1997
       1 Class Chlorarachnea Hibberd & Norris, 1984
       2 Class Spongomonadea T. Cavalier-Smith, 2000 see Class Imbricatea T. Cavalier-Smith & E.E.-Y. Chao, 2003
       3 Class Proteomyxidea Cavalier-Smith, 2002 [polyphyletic]