Species
Orbithele contraria (Sdzuy, 1955)
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Linguliformea |
| Class | Lingulata |
| Order | Lingulida |
| Superfamily | Acrotheloidea |
| Family | Acrothelidae |
| Subfamily | Acrothelinae |
| Genus | Orbithele |
| Species | ceratopygarum |
| contraria |