Phylum Mollusca Linnaeus, 1758 - molluscs
   Subphylum Aculifera Hatschek, 1891
     Class Polyplacophora Blainville, 1816 - chitons
       Order Neoloricata Bergenhayn, 1955 see Subclass Neoloricata Bergenhayn, 1955
         1 Suborder Lepidopleurina Thiele, 1910
         2 Suborder Choriplacina Starobogatov & Sirenko, 1975 see Suborder Acanthochitonina Bergenhayn, 1930
         3 Suborder Ischnochitonina Bergenhayn, 1930 see Suborder Chitonina Thiele, 1909
         4 Suborder Acanthochitonina Bergenhayn, 1930