Subfamily
Overtoniinae Muir-Wood et Cooper, 1960
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Rhynchonelliformea |
| Class | Strophomenata |
| Order | Productida |
| Suborder | Productidina |
| Superfamily | Productoidea |
| Family | Productellidae |
| Subfamily | Marginiferinae |
| Overtoniinae | |
| Tribe | Costispiniferini |
| Krotoviini | |
| Subfamily | Productininae |