life
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Empire Eukaryota (Chatton, 1925)
 see Domain Eukaryota Chatton, 1925
    
 Superkingdom Metakaryota
 see Domain Eukaryota Chatton, 1925
      
 Kingdom Protozoa Goldfuss, 1818 - protozoa
        
 Subkingdom Dictyozoa Cavalier-Smith, 1991
          
 Branch Bikonta Cavalier-Smith, 1993
            
 Infrakingdom Euglenozoa Cavalier-Smith, 1981 [monotypic]
              
 Phylum Euglenozoa Cavalier-Smith, 1981
                
 Subphylum Euglenoida Bütschli, 1884
                  
 Class Aphagea Cavalier-Smith, 1993
                    
 Subclass Euglenia Cavalier-Smith, 1993
                      
 Order Astasida Ehrenberg, 1838
                        
 Genus Astasiaᵀ Dujardin, 1830