Family
Cyrtinidae Fredericks, 1911
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Rhynchonelliformea |
| Class | Rhynchonellata |
| Order | Spiriferinida |
| Superfamily | Cyrtinoidea |
| Family | Cyrtinidae |
| Genus | Cyrtina |
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Rhynchonelliformea |
| Class | Rhynchonellata |
| Order | Spiriferinida |
| Superfamily | Cyrtinoidea |
| Family | Cyrtinidae |
| Genus | Cyrtina |