Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818
     Class Flagellata see Subphylum Mastigophora Diesing, 1866
       Order Euglenoidina Bütschli, 1884 see Order Euglenida Bütschli, 1884
         Family Euglenidae Stein, 1878
           1 Genus [Euglena] C.G. Ehrenberg, 1830
           2 Genus Phacus Dujardin, 1841