Position in a system
| system | Vitae - living organisms |
| domain | Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells |
| superregnum | Unikonta |
| system | Opisthokonta Cavalier-Smith, 1987 |
| kingdom | Animalia Linnaeus, 1758 - animals |
| subregnum | Eumetazoa Butschli, 1910 |
| divisio | Bilateria Hatschek, 1888 - bilaterians |
| subdivisio | Protostomia Grobben, 1908 - protostomes |
| phylum | Mollusca Cuvier, 1795 - mollusks |
| subphylum | Conchifera Gegenbaur, 1878 - shell-bearers |
| superclassis | Cyrtosoma |
| class | Gastropoda Cuvier, 1795 - gastropods |
| subclass | Caenogastropoda Cox, 1960 |
| order | Littorinimorpha Golikov & Starobogatov, 1975 |
| superfamily | Cypraeoidea Rafinesque, 1815 - cowries |
| family | Cypraeidae Rafinesque, 1815 - Cowries |
| subfamily | Erroneinae |
| tribus | Erroneini |
| genus | Purpuradusta Schilder, 1939 |
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