Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Sipunculida see Phylum Sipuncula Rafinesque, 1814
           Genus Golfingia Lankester, 1885
           Genus Phascolosoma Leuckart, 1828
           Genus Physcosoma Selenka, 1897
           Genus Siphonomecus Fisher, 1947
           Genus Sipunculus Linnaeus, 1767