Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Hemichordata Bateson, 1885 - hemichordates
     Class †Graptolithina Bronn, 1849
       Order †Graptoloidea Lapworth, 1875
         Genus †Adelograptus Bulman, 1941
         Genus †Anisograptus Ruedmann, 1937
         Genus †Cardiograptus Harris, 1916
         Genus †Climacograptus (Hall, 1865)
         Genus †Clonograptus Hall & Nicholson, 1873
         Genus †Coronograptus
         Genus †Cryptograptus Lapworth, 1880
         Genus †Cucullograptus Urbanek, 1954
         Genus †Cyrtograptus Lapworth, 1874
         Genus †Dicellograptus Hopkinson, 1871
         Genus †Dicranograptus Hall, 1865
         Genus †Didymograptus McCoy, 1851
         Genus †Dimorphograptus Lapworth, 1876
         Genus †Diplograptus McCoy, 1850
         Genus †Glossograptus Emmons, 1855
         Genus †Glyptograptus Lapworth, 1873
         Genus †Goniograptus McCoy, 1876
         Genus †Isograptus Moberg, 1892
         Genus †Lasiograptus Lapworth, 1873
         Genus †Leptograptus Lapworth, 1873
         Genus †Monoclimacis Frech, 1897
         Genus †Monograptus Geinitz, 1852
         Genus †Nemagraptus Emmons, 1855
         Genus †Neodiversograptus Urbanek, 1963
         Genus †Oktavites Levina, 1928
         Genus †Oncograptus Hall, 1914
         Genus †Orthograptus Lapworth, 1873
         Genus †Paraglossograptus Hsü, 1959
         Genus †Parakidograptus Li & Ge, 1981
         Genus †Phormograptus Whittington, 1955
         Genus †Phyllograptus Hall, 1858
         Genus †Pipiograptus Whittington, 1955
         Genus †Pristiograptus Haeckel, 1889
         Genus †Pseudoclimacograptus Pribyl, 1948
         Genus †Rastrites Barrande, 1850
         Genus †Saetograptus Príbyl, 1943
         Genus †Tetragraptus Salter, 1863