Kingdom Animalia Linnaeus, 1758 - animals
Status: extant
   Phylum Mollusca Linnaeus, 1758 - molluscs
  Status: extant
     Subphylum Cyrtosoma Runnegar & Pojeta Jr., 1974 see Phylum Mollusca Linnaeus, 1758
    Status: extant
       Class Cephalopoda Cuvier, 1795 - cephalopods
      Status: extant
         Genus †Diaboloceras (Miller & Furnish, 1940)
        Status: fossil
         Genus †Exiteloceras Hyatt, 1894
        Status: fossil
         Family †Kosmoceratidae Haug, 1887
        Status: fossil
         Genus Nautilus Linnaeus, 1758
        Status: extant
         Genus Octopus Cuvier, 1798
        Status: extant
         Genus †Perrinites Böse, 1917
        Status: fossil
         Genus †Plectronoceras Ulrich & Foerste, 1933
        Status: fossil
         Genus †Xenodiscus Waagen, 1879
        Status: fossil
         1 Subclass Nautiloidea Agassiz, 1848
        Status: extant
         1.n? Subclass †Bactritoidea Shimanskiy, 1951
        Status: fossil
         1.n?.n.1 Subclass †Ammonoidea Zittel, 1884
        Status: fossil
         1.n?.n.2 Subclass Coleoidea Bather, 1888
        Status: extant
         2 Subclass †Endoceratoidea Teichert, 1933
        Status: fossil
         3 Subclass †Actinoceratoidea Teichert et al., 1964
        Status: fossil