living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: 4k;54p;156c;911o;7123f;17,575g;4762s;36ss;8v;19; ‡1f;6g;7s;1ss; †1c;10o;10f;19g;1s
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
  Count: [c] 2k;51p;154c;900o;7001f;17,209g;4300s;33ss;8v; ‡1f;6g;7s;1ss; †1c;10o;10f;19g;1s
     Kingdom Animalia Linnaeus, 1758 - animals
    Count: [c] 38p;101c;595o;5766f;13,419g;3233s;32ss;3v; ‡1f;6g;7s;1ss; †1c;9o;10f;16g;1s
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
      Count: [c] 29p;70c;458o;5094f;11,476g;2933s;31ss;3v; ‡1f;6g;7s;1ss; †1c;8o;10f;11g;1s
         Phylum Mollusca Linnaeus, 1758 - molluscs
        Count: [f] 8c;42o;538f;1769g;163s; †2f;1g
           1 Class Caudofoveata Boettger, 1956 - caudofoveatans
          Count: [g] 3f;7g
           2 Class Solenogastres Gegenbaur, 1878
          Count: [g] 4o;21f;65g;19s
           3 Class Polyplacophora Blainville, 1816 - chitons
          Count: [f] 3o;13f;39g;12s
           4 Class Monoplacophora Odhner, 1940 - monoplacophorans
          Count: [g] 1o;1f;2g; †1f
           5 Class Gastropoda Cuvier, 1795 - snails and slugs
          Count: [f] 16o;332f;1050g;85s
           6 Class Cephalopoda Cuvier, 1795 - cephalopods
          Count: [f] 4o;45f;91g;27s
           7 Class Bivalvia Linnaeus, 1758 - bivalves
          Count: [f] 12o;115f;490g;20s; †1f
           8 Class Scaphopoda Bronn, 1862 - tusk shells
          Count: [g] 2o;8f;25g; †1g