Suborder
Pachyosteina Stensiö, 1944
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Infraphylum | Gnathostomata |
| Class | Placodermi |
| Order | Euarthrodira |
| Suborder | Actinolepina |
| Coccosteina | |
| Heterostiina | |
| Pachyosteina | |
| Superfamily | Dinichthyoidea |