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 Mollusca Linnaeus, 1758 - molluscs
           Subphylum Aculifera Hatschek, 1891
             Class Placophora von Ihering, 1876 see Class Polyplacophora Blainville, 1816
               1 Order Lepidopleurina Thiele, 1909
               2 Order Ischnochitonina (Bergenhayn, 1930)
               3 Order Acanthochitonina Bergenhayn, 1930