Species
Uncinulus princeps (Barrande, 1847)
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Rhynchonelliformea |
| Class | Rhynchonellata |
| Order | Rhynchonellida |
| Superfamily | Uncinuloidea |
| Family | Uncinulidae |
| Genus | Uncinulus |
| Species | princeps |