organisms
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Domain eukaryotes
 see Domain Eukaryota Chatton, 1925
    
 amoeboid and flagellated protists
      
 Class Heterolobosea Page & Blanton, 1985
        
 Order Schizopyrenida Singh, 1952
          
 Family Gruberellidae Page & Blanton, 1985
            
 1 Genus Gruberella Page, 1984, nom. illeg.
            
 2 Genus Stachyamoeba F.C. Page, 1975