Family
Culmacanthidae Long, 1983
Klassificering
| Organism group | Biota |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Infraphylum | Gnathostomata |
| Class | Chondrichthyes |
| Subclass | Acanthodii |
| Order | Diplacanthiformes |
| Family | Culmacanthidae |
| Genus | Culmacanthus |
| Family | Diplacanthidae |
| Genus | Devononchus |