living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryotae see Domain Eukaryota Chatton, 1925
     Animalia Linnaeus, 1758 - animals
       Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Rotifera Cuvier, 1798 - rotifers see Phylum Syndermata Ahlrichs, 1995
           Monogononta Plate, 1889
             Ploima see Order Ploimida
               Gastropodidae Remane, 1933
                 Gastropus Imhof, 1898
                   Gastropus stylifer Imhof, 1891