Phylum Amoebozoa Lühe, 1913
   Subphylum Conosa Cavalier-Smith, 1998 see Infraphylum Conosa Cavalier-Smith, 1998
     Infraphylum Mycetozoa de Bary, 1859 ex Rostafinski, 1873 see Superclass Mycetozoa de Bary, 1859 ex Rostafinski, 1873
       Class Myxogastrea Fries, 1829
         Order Echinosteliida Martin, 1961
           Family Echinosteliidae Rostafinski, 1873
             Genus Echinostelium de Bary, 1873