[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 Lacunidae Gray, 1857 see Subfamily Lacuninae Gray, 1857
         Genus Lacuna Turton, 1827
           Lacuna crassior (Montagu, 1803) - thick lacuna