Order
Hybodontiformes Patterson, 1966
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Organism group | Gnathostomata |
| Class | Chondrichthyes |
| Subclass | Elasmobranchii |
| Order | Ctenacanthiformes |
| Hybodontiformes | |
| Family | Acrodontidae |
| Order | Lugalepidida |
| Phoebodontiformes | |
| Superfamily | Protacrodontoidea |
| Genus | Karksiodus |