Genus
Belemnacanthus Eastman, 1898
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Chordata | 
| Subphylum | Vertebrata | 
| Infraphylum | Gnathostomata | 
| Class | Placodermi | 
| Order | Arthrodira | 
| Suborder | Phlyctaenioidei | 
| Family | Holonematidae | 
| Genus | Belemnacanthus | 
| Holonema | |
| Rhenonema | |
| Tropinema | 
 See also