living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Mollusca Linnaeus, 1758 - molluscs
           Class Polyplacophora Blainville, 1816 - chitons
             Subclass Neoloricata Bergenhayn, 1955
               Order Ischnochitonida Bergenhayn, 1930 see Order Chitonida Thiele, 1909
                 Family Callistoplacidae Pilsbry, 1893
                   Genus Nuttalochiton Plate, 1899, nom. inval. see Genus Nuttallochiton Plate, 1899, nom. corr.