Phylum Cercozoa Cavalier-Smith, 1998
Count: 1o;2f;11g;69s
   Order Cercomonadida Poche, 1913 - cercomonads
  Count: [*] 2f;9g;67s
     Family Heteromitidae Kent, 1880
    Count: [*] 6g;17s
       Genus Protaspis Skuja, 1939, nom. illeg. see Genus Protaspa A.T. Howe et al., 2011
      Count: [*] 9s
         Protaspis obovata Skuja, 1948
        Count: -