perekond
Crania Retzius, 1781
Klassifikatsioon
| organismirühm | Biota |
| riik | Animalia |
| hõimkond | Brachiopoda |
| alamhõimkond | Craniiformea |
| klass | Craniata |
| selts | Craniida |
| sugukond | Craniidae |
| perekond | Acanthocrania |
| Crania | |
| Eleutherocrania | |
| Isocrania | |
| Lepidocrania | |
| Neocrania | |
| Petrocrania | |
| Philhedra | |
| Propatella | |
| Thulecrania | |
| Valdiviathyris |
See also