Genus
Ischnacanthus Powrie, 1864
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Organism group | Gnathostomata |
| Class | Acanthodii |
| Order | Ischnacanthiformes |
| Family | Ischnacanthidae |
| Genus | Arenaceacanthus |
| Atopacanthus | |
| Bracteatacanthus | |
| Garralepis | |
| Gomphonchoporus | |
| Gomphonchus | |
| Ischnacanthus | |
| Species | gracilis |
| Genus | Persacanthus |
| Rohonilepis |