Superregnum: Eukaryota Cladus: Unikonta Cladus: Opisthokonta Cladus: Holozoa Regnum: Animalia Subregnum: Eumetazoa Cladus: ParaHoxozoa Cladus: Bilateria Cladus: Nephrozoa Cladus: Protostomia Cladus: Spiralia Cladus: Lophotrochozoa Phylum: Mollusca Classis: Gastropoda Subclassis: Caenogastropoda Ordo: Littorinimorpha Superfamilia: Truncatelloidea
Familia: Tornidae Genus: Ovini Species (1): O. petalius