Class Mycetozoa de Bary, 1859 see Superclass Mycetozoa de Bary, 1859 ex Rostafinski, 1873
   Subclass Protostelia Olive, 1970 [monotypic] see Class Protostelea Alexopoulos & Mims, 1979
     Order Protosteliida Olive & Stoianovitch, 1966 see Order Protostelida Olive & Stoianovitch, 1966
       1 Family Cavosteliidae Olive, 1965
       2 Family Protosteliidae Olive, 1962
       3 Family Ceratiomyxidae Schröter, 1889