Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Heterodonta Neumayr, 1884 see Clade Heterodonta Neumayr, 1884
       Order Venerida Gray, 1854
         Superfamily Lucinoidea Fleming, 1828
           Family Ungulinidae Gray, 1854
             01 Genus Ungulina Daudin, 1801
             02 Genus Bruetia Chavan, 1962
             03 Genus Cycladicama Valenciennes, 1854
             04 Genus Diplodonta Bronn, 1831
             05 Genus Felania Récluz, 1851
             06 Genus Felaniella Dall, 1899
             07 Genus Microstagon Cossmann, 1896
             08 Genus Minipisum Habe, 1961
             09 Genus Numella Iredale, 1924
             10 Genus Phlyctiderma Dall, 1899
             11 Genus Timothynus Harris & Palmer, 1946
             12 Genus Zemysia Finlay, 1926