Genus
Crassitestella Baarli, 1995
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Strophomenata | 
| Order | Strophomenida | 
| Superfamily | Strophomenoidea | 
| Family | Rafinesquinidae | 
| Subfamily | Rafinesquininae | 
| Genus | Crassitestella | 
| Hedstroemina | |
| Kjaerina | |
| Kjerulfina | |
| Pirgumena | |
| Rafinesquina | |
| Rakverina | |
| Virunites |