After Bulman, 1955, and Bates, Kozlowska & Lenz, 2005

<==o †Graptoloidea Lapworth, 1875
   |--o †Archiretiolitidae Bulman, 1955 [†Retiolitidae: Archiretiolitinae Bulman, 1955]
   |  |--o †Archiretioliles Eisenack, 1935; U.Ord. NWEu.
   |  |  `-- †A. regimontanus Eisenack, 1935
   |  |--o †Orthoretiolites Whittington, 1954; M.Ord. NA.
   |  |  `-- †O. hami Whittington, 1954
   |  |--o †Plegmatographus Elles & Wood, 1908; M.Ord. NWEu. ?NA. Aust.
   |  |  `-- †P. nebula Elles & Wood, 1908
   |  `--o †Retiograptus Hall, 1859 [Clathrograptus Lapworth, 1973] M.Ord. Eu. NA. EAs.
   |     `-- †R. geinitzianus Hall, 1859
   |-- †Dichograptidae Lapworth, 1873
   |--o †Corynoides Nicholson, 1867 [Corynograptus Nicholson & Lapworth, 1875] [Corynoididae Bulman, 1944 [pro Corynographidae Hopkinson & Lapworth, 1875]] M.Ord. NWEu. NA.
   |  |-- †C. calicularis Nicholson, 1867
   |  `-- †C. divnoviensis Kozlowski
   |--o †Gryptograptidae Hadding, 1915
   |  |--o †Cryptograptus Lapworth, 1880; M.Ord. NWEu.
   |  |  |-- †C. tricornis (Carruthers, 1859) [Diplograpsus tricornis Carruthers, 1859]
   |  |--o †Glossograptus Emmons, 1855 emend. Hall, 1865 [pro Glossograpsus Emmons, 1855]; L.-M.Ord.
   |  |  |-- †G. ciliatus S.D Lapworth, 1873
   |  |  `-- †G. hincksi (Hopkinson)
   |  |--o †Lonchograptus Tullberg, 1880; L.Ord. NWEu.
   |  |  `-- †L. ovatus Tullber, 1880
   |  `--o †Nanograptus Hadding, 1915; M.Ord. NWEu.
   |     `-- †N. lapworthi S.D. Bulman, 1929
   |--o †Leptograptidae Lapworth, 1879
   |  |--o †Leptograptus Lapworth, 1873; M.-U.Ord. Eu. NA. Aust.
   |  |  `--o †L. flaccidus (Hall, 1865) [Grapholithus flaccidus Hall, 1865]
   |  |     |-- †L. f. flaccidus (Hall)
   |  |     |-- †L. f. macilentus Elles & Wood
   |  |     `-- †L. f. trentonensis Ruedemann
   |  |--o †Amphigraptus Lapworth, 1873 [Clematograptus Hopkinson, 1875] M.Ord. NWEu. NA.
   |  |  `-- †A. divergens (Hall, 1879) [Graptolithus divergens Hall, 1879]
   |  |--o †Nemagraptus Emmons, 1855 emend. Hall, 1865 [pro Nemagrapsus Emmons, 1855] [Stephanograptus Geinitz, 1866; Coenograptus Hall, 1868; Helicograpsus Nicholson, 1868] M.Ord. Eu. NA. Aust. As.
   |  |  `-- †N. gracilis (Hall, 1848) [Graptolithus gracilis Hall, 1848; Nemagrapsus elegans Emmons, 1855]
   |  |--o †Pleurograptus Nicholson, 1867 emend. Lapworth, 1873 [pro Pleurograpsus Nicholson, 1867] [Cladograpsus Carruthers, 1858 (non Emmons, 1855)] M.Ord. NWEu. NA. Aust.
   |  |  `-- †P. linearis (Carruthers, 1858) [Cladograpsus linearis Carruthers, 1858]
   |  `--o †Syndyograptus Ruedemann, 1908; M.Ord. NA.
   |     `-- †S. pecten Ruedemann, 1908
   |--o †Dicranograptidae Lapworth, 1873
   |  |--o †Dicellograptus Hopkinson, 1871 emend. Lapworth, 1873 [pro Dicellograpsus Hopkinson, 1871] M.-U.Ord. Eu. NA. Aust. As.
   |  |  `-- †D. elegans (Carruthers, 1868) [Didymograpsus elegans Carruthers, 1868]
   |  `--o †Dicranograptus Hall, 1865 [Cladograpsus Emmons, 1855 (non Geinitz, 1852)] M.Ord. Eu. NA. SA. Aust. As.
   |     |--o †D. ramosus (Hall, 1848) [Graptolithus ramosus Hall, 1848]
   |     |  |-- †D. r. ramosus (Hall, 1848)
   |     |  `-- †D. r. longicaulis Elles & Wood
   |     `-- †D. nicholsoni Hopkinson
   |-- †Diplograptidae Lapworth, 1873
   |--o †Lasiograptidae Bulman, 1955
   |  |--o †Lasiograptus Lapworth, 1873 [Thysanograptus Elles & Wood, 1908] Ord. Eu. SA. ?NA. Aust.
   |  |  |-- †L. costatus Lapworth, 1873
   |  |  `-- †L. hystrix Bulman
   |  |--o †Hallograptus Lapworth, 1877 (ex M.S. Garruthers)
   |  |  `--o †H. mucronatus (Hall, 1847) S.D. Elles & Wood, 1908 [Graptolithus mucronatus Hall, 1847] Ord. Eu. NA.
   |  |     |-- †H. m. bimucronatus (Nicholson)
   |  |     `-- †H. m. mucronatus (Hall)
   |  |--o †Neurograptus Elles & Wood, 1908 [Neorograptus Lapworth, 1875 (nomen nudum)] M.Ord. Eu. NA. Aust.
   |  |  |-- †N. marginatus (Lapworth, 1876) S.D. Bulman, 1929 [Lasiograptus marginatus Lapworth, 1876]
   |  `--o †Nymphograptus Elles & Wood, 1908 (ex M.S. Lapworth)
   |     `-- †N. velatus Elles & Wood, 1908
   |--+-- †Petalolithidae  [Diplograptidae: Petalograptinae Bulman, 1955]
   |  `-- †Retiolitidae Lapworth, 1873
   |--o †Dimorphograptidae Elles & Wood, 1908
   |  |--o †Dimorphograptus Lapworth, 1876 [Bulmanograptus Pribyl, 1948] L.Sil. Eu. EAs.
   |  |  |-- †D. elongatus S.D. Bassler, 1915
   |  |  `-- †D. decussatus Elles & Wood
   |  |--o †Akidograptus Davies, 1929; L.Sil. Eu. EAs.
   |  |  `-- †A. ascensus Davies, 1929
   |  |?-o †Parakidograptus
   |  |  `-- †P. acuminatus (Nicholson, 1867)
   |  `--o †Rhaphidograptus Bulman, 1936 [Metadimorphograptus Pribyl, 1948] L.Sil. Eu.
   |     |-- †R. tornquisti (Elles & Wood, 1906) [Climacograptus törnquisti Elles & Wood, 1906; Rhaphidograptus tœrnquisti; Rhaphidograptus törnquisti (Elles & Wood, 1906) Bulman, 1955]
   |     `-- †R. extenuatus (Elles & Wood)
   `-- †Monograptidae Lapworth, 1873

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