Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Heterobranchia Burmeister, 1837 [monotypic] see Superorder Heterobranchia Burmeister, 1837
       Order Heterostropha Fischer, 1885
         Superfamily Architectonicoidea Gray, 1850
           Family Architectonicidae Gray, 1850
             01 Genus Architectonica Röding, 1798
             02 Genus Adelphotectonica Bieler, 1987
             03 Genus Philippia Gray, 1847
             04 Genus Psilaxis Woodring, 1928
             05 Genus †Discotectonica Marwick, 1931
             06 Genus Granosolarium Sacco, 1892
             07 Genus Solatisonax Iredale, 1931
             08 Genus Heliacus d'Orbigny, 1842
             09 Genus Pseudotorinia Sacco, 1892
             10 Genus Pseudomalaxis Fischer, 1885
             11 Genus Spirolaxis Monterosato, 1913
             12 Genus Torinia Gray, 1842
             13 Subgenus Granoheliacus Melone & Taviani, 1984 see Genus Solatisonax Iredale, 1931
             14 Genus Basisulcata Melone & Taviani, 1984