After Bulman, 1955
<==o †Diplograptidae Lapworth, 1873 |?-o †Trigonograptus Nicholson, 1869 emend. Lapworth, 1873 [pro Trigonograpsus Nicholson, 1869] | |-- †T. lanceolatus Nicholson, 1869 | `-- †T. ensiformis (Hall) |?-o †Gymnograptus Bulman, 1953 (ex M.S. Tullberg) [Idiograptus Lapworth, 1880] | `-- †G. linnarssoni (Moberg, 1896) [Diplograptus linnarssoni Moberg, 1896 (ex M.S. Tullberg)] |?-o †Peiragraptus Strachan, 1954 | `-- †P. fallax Strachan, 1954 |--o †Climacograptinae Frech, 1897 [nom. transl. Pribyl, 1948 ex Climacograptidi Frech, 1897] | `--o †Climacograptus Hall, 1865 [Paraclimacograptus Pribyl, 1947; Pseudoclimacograptus Pribyl, 1948] L.Ord.-M.Sil. | |-- †C. bicornis (Hall, 1848) [Graptolithus bicornis Hall, 1848] | |-- †C. scharenbergi Lapworth | |-- †C. rectangularis (M'Coy) | `-- †C. innotatus Nicholson `--o †Diplograptinae Lapworth, 1873 |--o †Diplograptus M'Coy, 1850 emend. Hall, 1865 [pro Diplograpsis M'Coy, 1850] [Mesograptus Elles & Wood, 1907] M.Ord.-L.Sil. Eu. NA. Aust. As. | `-- †D. pristis (Hisinger, 1837) S.D. Gurley, 1896 [Prionotus pristis Hisinger, 1837] |--o †Amplexograptus Elles & Wood, 1907; L.-M.Ord. | `-- †A. perexcavatus (Lapworth, 1876) [Diplograptus perexcavatus Lapworth, 1876] |--o †Glyptograptus Lapworth, 1873; L.Ord.-L.Sil. | `-- †G. tamariscus Nicholson, 1868 [Diplograpsus tamariscus (Nicholson, 1868)] `--o †Orthograptus Lapworth, 1873 [Cystograptus Hundt, 1942; Glossograptus Ruedemann, 1947 in partim (non Emmons, 1855); Rectograptus Pribyl, 1949] M.Ord.-L.Sil. |-- †O. quadrimucronatus (Hall, 1865) [Graptolithus quadrimucronatus Hall, 1865] |-- †O. truncatus (Lapworth) `-- †O. calcaratus (Lapworth)
Reference(s):
- Bulman, O. M. B., 1955: Part V – Grapholithina, with sections on Enteropneusta and Pterobranchia. xviii-V101.
in Moore, R. C. (ed.), 1955: Treatise on Invertebrate Paleontology.
–University of Kansas Press and The Geological Society of America, Lawrence, Kansas, 1955