fossil marine animal genera Linnaeus, 1758 - animals
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Cephalopoda Cuvier, 1795 - cephalopods
       01 Order †Plectonocerida see Order Plectronocerida
       02 Order †Ellesmerocerida Flower & Kummel, 1950
       03 Order †Protactinocerida
       04 Order †Yanhecerida
       05 Order †Orthocerida Kuhn, 1940
       06 Order †Ascocerida Kuhn, 1949
       07 Order †Intejocerida Balashov, 1960
       08 Order †Actinocerida Teichert, 1933
       09 Order †Endocerida Teichert, 1933
       10 Order †Discosorida Flower, 1950
       11 Order †Oncocerida Flower & Kummel, 1950
       12 Order Nautilida Agassiz, 1848
       13 Order †Tarphycerida Flower & Kummel, 1950
       14 Order †Barrandeocerida (Flower & Kummel, 1950)
       15 Order †uncertain
       16 Order †Anarcestida Miller & Furnish, 1954
       17 Order †Clymeniida Hyatt, 1884
       18 Order †Goniatitida Hyatt, 1884
       19 Order †Prolecanitida Miller & Furnish, 1954 see Suborder Prolecanitina Miller & Furnish, 1954
       20 Order †Ceratitida Hyatt, 1884
       21 Order †Phylloceratida (Zittel, 1884) see Order Phyllocerida
       22 Order †Ammonoidea Zittel, 1884 see Subclass Ammonoidea Zittel, 1884
       23 Order †Belemnitida Gray, 1849
       24 Order Octopida Leach, 1817 see Order Octopoda Leach, 1817
       25 Order Sepiida Gray, 1849
       26 Order Teuthida Naef, 1916
       27 Order †Phragmoteuthida Jeletzky, 1965 [monotypic]
       28 Order †Boletzkida Bandel, Reitner & Stürmer, 1985 see Order Boletzkyida Bandel, Reitner & Stürmer, 1985
       29 Order †Aulacocerida Stolley, 1919