Subclass
Crossopterygii Cope, 1871
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Organism group | Gnathostomata |
| Superclass | Osteichthyes |
| Class | Sarcopterygii |
| Subclass | Actinistia |
| Crossopterygii | |
| Dipnoi | |
| Rhipidistia | |
| Order | Onychodontida |
| Genus | Iranorhynchus |