[organisms]
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Phylum Mollusca Linnaeus, 1758 - molluscs
    
 Class Gastropoda Cuvier, 1795 - snails and slugs
      
 Family Capulidae Fleming, 1822 - cap snails
        
 Genus Capulus Montfort, 1810
          
 Capulus simplex Locard, 1898