Phylum Cercozoa Cavalier-Smith, 1998 Subphylum Filosa T. Cavalier-Smith & E.E.-Y. Chao, 2003 Superclass Monadofilosa Cavalier-Smith, 1997 see Subphylum Monadofilosa Cavalier-Smith, 1997 Class Imbricatea T. Cavalier-Smith & E.E.-Y. Chao, 2003 Order Thaumatomonadida Shirkina, 1987 Genus Thaumatomastix Lauterborn, 1899