Superfamily
Megalograptidae Caster et Kjellesvig-Waering, 1955
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Chelicerata |
| Order | Eurypterida |
| Suborder | Eurypterina |
| Superfamily | Adelophthalmoidea |
| Eurypteroidea | |
| Megalograptidae | |
| Mixopteroidea | |
| Moselopteroidea | |
| Pterygotoidea | |
| Genus | Holmipterus |