[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Branch Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Division Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Subdivision Protostomia Grobben, 1908 see Infrakingdom Protostomia Grobben, 1908
           Section Eucoelomata see Superphylum Eucoelomata
             Phylum Mollusca Linnaeus, 1758 - molluscs
               1 Class Monoplacophora Odhner, 1940 - monoplacophorans
               2 Class Aplacophora von Ihering, 1876 - aplacophorans see Phylum Mollusca Linnaeus, 1758
               3 Class Polyplacophora Blainville, 1816 - chitons
               4 Class Scaphopoda Bronn, 1862 - tusk shells
               5 Class Gastropoda Cuvier, 1795 - snails and slugs
               6 Class Bivalvia Linnaeus, 1758 - bivalves
               7 Class Cephalopoda Cuvier, 1795 - cephalopods