Order
Holocephali Bonaparte, 1832
Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Infraphylum | Gnathostomata |
| Class | Chondrichthyes |
| Subclass | Elasmobranchii |
| Order | Acanthodei |
| Holocephali | |
| Helodontiformes | |
| Polymerolepidiformes | |
| Family | Kannathalepididae |
| Palaeospondylidae | |
| Wellingtonellidae | |
| Genus | Karksilepis |