Genus
Kjerulfina Bancroft, 1929
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Rhynchonelliformea |
| Class | Strophomenata |
| Order | Strophomenida |
| Superfamily | Strophomenoidea |
| Family | Rafinesquinidae |
| Subfamily | Rafinesquininae |
| Genus | Crassitestella |
| Hedstroemina | |
| Kjaerina | |
| Kjerulfina | |
| Species | polycyma |
| Genus | Pirgumena |
| Rafinesquina | |
| Rakverina |
See also