After Okulitch, 1955
<==o †Monocyathea Okulitch, 1943 (nom. transl. Okulitch, 1955 ex Monocyatha Okulitch, 1943) |--o †Archaeophyllida Okulitch, 1943 (nom. transl. Okulitch, 1955 ex Archaeophyllina Okulitch, 1943) | `--o †Archaeophyllidae Vologdin, 1931 | |--o †Archaeophyllum Vologdin, 1931 | | `-- †A. edelsteini Vologdin, 1931 | `--o †Butovia Vologdin, 1931 | `-- †B. settata Vologdin, 1931 `--o †Monocyathida Okulitch, 1943 (nom. transl. Okulitch, 1955 ex Monocyathina Okulitch, 1943) |--o †Monocyathidae Bedford & Bedford, 1934 | |?-o ?†Tunkia Bedford & Bedford, 1936 | | `-- †T. incerta Bedford & Bedford, 1936 | |--o †Monocyathus Bedford & Bedford, 1934 [Archaeolynthus Taylor, 1910 (nomen nudum)] | | `-- †M. porosus Bedford & Bedford, 1934 | |--o †Rhabdocnema Okulitch, 1937 [pro Rhabdocyathus Toll, 1899 (non Brooks, 1893)] | | |-- †R. sibiricus (Toll, 1899) [Rhabdocyathus sibiricus Toll, 1899] | | `-- †R. solidimurus (Vologdin) | `--o †Rhabdocyathella Vologdin, 1937 | `-- †R. beileyi Vologdin, 1937 `--o †Rhizacyathidae Bedford & Bedford, 1939 |--o †Rhizacyathus Bedford & Bedford, 1939 | `-- †R. radix (Bedford & Bedford, 1937) [Protopharetra radix Bedford & Bedford, 1937] `--o †Bacatocyathus Vologdin 1940 `-- †B. kazakevici Vologdin 1940
Reference(s):
- Okulitch, V. J., 1955: Part E – Archaeocyatha and Porifera. Archaeocyatha, E1-E20
in Moore, R. C., (ed.) 1955: Treatise on Invertebrate Paleontology.
–Geological Society of America & University of Kansas Press, Lawrence, Kansas, 1955, xviii-E122