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 Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Onychophora Grube, 1853 - velvet worms
           Order Onychophora Grube, 1853 see Phylum Onychophora Grube, 1853
             Family Peripatopsidae Bouvier, 1907
               1 Genus Ooperipatus Dendy, 1900
               2 Genus Peripatoides Pocock, 1894
               3 Genus Symperipatus Cockerell, 1913
               4 Genus Opisthopatus Purcell, 1899
               5 Genus Peripatopsis Pocock, 1894
               6 Genus Metaperipatus Clark, 1913
               7 Genus Paraperipatus Willey, 1898