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 Class Proteomyxidea Cavalier-Smith, 2002 [polyphyletic] 1 Genus Massisteria Larsen & Patterson, 1990 2 Genus Gymnophrys Cienkowski, 1876