Metazoa see Kingdom Animalia Linnaeus, 1758
Count: -
   Gastraeozoa
  Count: [*] *
     Trochaeozoa see [unranked] Bilateria Hatschek, 1888
    Count: [*] *
       Gastroneuralia Ulrich, 1951
      Count: [*] *
         Aschelminthes Grobben, 1910 see [unranked] Protostomia Grobben, 1908
        Count: [*] *
           1 Phylum Rotifera Cuvier, 1798 - rotifers see Phylum Syndermata Ahlrichs, 1995
          Count: -
           2 Phylum Acanthocephala Kohlreuther, 1771 - acanthocephalans see [unranked] Acanthocephala Kohlreuther, 1771
          Count: -
           3 Phylum Chaetognatha Leuckart, 1854 - chaetognaths
          Count: -
           4 Phylum Nematoda Gegenbaur, 1859 - round worms
          Count: -
           5 Phylum Nematomorpha Vejdovsky, 1886 - horsehair worms
          Count: -
           6 Phylum Kinorhyncha Reinhard, 1887 - kinorhynchs
          Count: -
           7 Phylum Loricifera Kristensen, 1983 - loriciferans
          Count: -
           8 Phylum Priapulida Delage & Hérouard, 1897 - priapulids
          Count: -
           9 Phylum Gastrotricha Metschnikoff, 1864 - gastrotrichs
          Count: -