[organisms]
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Eukaryota Chatton, 1925 - eukaryotes
 see Domain Eukaryota Chatton, 1925
    
 Class Euglenophyceae W. Schoenichen (1925)
 see Class Euglenoidea Bütschli, 1884
      
 1 Genus Euglena C.G. Ehrenberg, 1830
      
 2 Genus Eutreptiella da Cunha, 1913