 living organisms
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
 living organisms
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae
 see Domain Eukaryota Chatton, 1925
 Superkingdom Eukaryotae
 see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
 Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910
 see [unranked] Eumetazoa Bütschli, 1910
 Subkingdom Eumetazoa Butschli, 1910
 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Gnathostomulida Ax, 1956 - gnathostomulids
 Phylum Gnathostomulida Ax, 1956 - gnathostomulids
           Genus Labidognathia Riedl, 1970
 Genus Labidognathia Riedl, 1970
             Labidognathia longicollis Riedl, 1970
 Labidognathia longicollis Riedl, 1970