organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Coelomata see [unranked] Coelomates Hyman, 1951
           Series Protostoma
             Phylum Onychophora Grube, 1853 - velvet worms
               Genus Mesoperipatus Evans, 1901
               Genus Ooperipatus Dendy, 1900
               Genus Opisthopatus Purcell, 1899
               Genus Peripatopsis Pocock, 1894
               Genus Peripatus Guilding, 1826
               Genus Symperipatus Cockerell, 1913