Phylum Cercozoa Cavalier-Smith, 1998
   Order Cercomonadida Poche, 1913 - cercomonads
     1 Family Cercomonadidae Kent, 1880
     1.1 Family Cercobodonidae Hollande, 1942 see Family Cercomonadidae Kent, 1880
     2 Family Heteromitidae Kent, 1880
     2.1 Family Bodomorphidae Hollande, 1952