living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818
         Phylum Ciliophora Doflein, 1901 - ciliates
           Class Kinetofragminophora see Class Kinetofragminophorea
             Subclass Hypostomata Schewiakoff, 1896 see Subclass Hypostomatia
               Order Nassulida Jankowski, 1967
                 Suborder Nassulina Jankowski, 1967 see Order Nassulida Jankowski, 1967
                   Family Nassulidae de Fromentel, 1874
                     Genus Nassulaᵀ Ehrenberg, 1834