Petaloconchus intortus
species of mollusc (fossil)
Bouchet & Rocroi (2005): Domain: Eukaryota • Regnum: Animalia • Subregnum: Eumetazoa • Cladus: Bilateria • Superphylum: Protostomia • Phylum: Mollusca • Classis: Gastropoda • Cladus: Caenogastropoda • Cladus: Hypsogastropoda • Cladus: Littorinimorpha • Familia: Vermetidae • Genus: Petaloconchus • Species: Petaloconchus intortus (Lamarck, 1818)
