organisms
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Domain eukaryotes
 see Domain Eukaryota Chatton, 1925
    
 amoeboid protists
      
 Class Mycetozoa de Bary, 1859
 see Superclass Mycetozoa de Bary, 1859 ex Rostafinski, 1873
        
 Subclass Myxogastria Fries, 1829
 see Class Myxogastrea Fries, 1829
          
 Order Echinosteliida Martin, 1961
            
 Family Echinosteliidaeᵀ Rostafinski, 1873
              
 1 Genus Echinostelium de Bary, 1873