After Bulman, 1955
<==o †Tuboidea Kozlowski, 1938 sensu Kozlowski, 1949 |-- †Tubidendrum Koslowski, 1949 [Tubidendridae Kozlowski, 1949] L.Ord. Eu. | `-- †T. bulmani Koslowski, 1949 `--o †Idiotubidae Kozlowski, 1949 |?-o ?†Calyptograptus Spencer, 1878 emend. Spencer, 1884 [pro Calyptograpsus Spencer, 1878] M.Sil. NA. | `-- †C. cyathiformis S.D. Miller, 1889 |?-o ?†Epigraptus Eisenack, 1941; Ord. Eu. | `-- †E. bidens Eisenack, 1941 |?-o ?†Rhodonograptus Pocta, 1894; Sil. Eu. | `-- †R. astericus Pocta, 1894 |--o †Idiotubus Kozlowski, 1949; L.Ord. Eu. | `-- †I. typicalis Kozlowski, 1949 |--o †Calycotubus Kozlowski, 1949; L.Ord. Eu. | `-- †C. infundibulatus Kozlowski, 1949 |--o †Conitubus Kozlowski, 1949; L.Ord. Eu. | `-- †C. siculoides Kozlowski, 1949 |--o †Cyclograptus Spencer, 1883; M.Sil. NA. | `-- †C. rotadentatus Spencer, 1883 |--o †Dendrotubus Kozlowski, 1949; L.Ord. Eu. | `-- †D. wimani Kozlowski, 1949 |--o †Discograptus Wiman, 1901; L.Sil. Eu. | `-- †D. schmidti Wiman, 1901 `--o †Galeograptus Wiman, 1901; L.Sil. Eu. `-- †G. wennersteni Wiman, 1901
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