Genus
Orthorhynchula Hall et Clarke, 1893
Klassificering
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Rhynchonellata | 
| Order | Rhynchonellida | 
| Superfamily | Rhynchotrematoidea | 
| Family | Orthorhynchulidae | 
| Genus | Orthorhynchula |