Genus
Culmacanthus Long, 1983
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Organism group | Gnathostomata |
| Class | Acanthodii |
| Order | Diplacanthiformes |
| Family | Culmacanthidae |
| Genus | Culmacanthus |
| Species | stewarti |
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Organism group | Gnathostomata |
| Class | Acanthodii |
| Order | Diplacanthiformes |
| Family | Culmacanthidae |
| Genus | Culmacanthus |
| Species | stewarti |