1905
Pachydictya Holmi n. sp. — Hennig, pp. 25, fig. 1:4, texy fig. 22-32
1968
Hemipachydictya holmi (Hennig) — Kopajevich, pp. 128
1979
Hemipachydictya holmi (Hennig) — Brood, pp. 173
1985
Metadictya holmi — Brood, pp. 73
1993
Metadictya holmi (Hennig, 1905) — Gorjunova & Lavretjeva, pp. 47
2013
Pachydictya holmi — Taylor & James, fig. 4C