[Kingdom] Animalia Linnaeus, 1758 - animals
   Grade Enterozoa
     Grade Cœlomata
       Phylum Vertebrata (Lamarck, 1801)
         Branch Urochorda
           Class Larvalia
             Genus Kowalewskyia Lankester, 1877, nom. null. see Genus Kowalevskia Fol, 1872