Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Heterodonta Neumayr, 1884 see Clade Heterodonta Neumayr, 1884
       Order Venerida Gray, 1854
         Superfamily Galeommatoidea Gray, 1840
           Family Montacutidae Clark, 1855 see Family Lasaeidae Gray, 1842
             Subfamily Montacutinae Clark, 1855
               01 Genus Montacuta Turton, 1822
               02 Genus Axinodon Verrill & Bush, 1898
               03 Genus Barrimysia Iredale, 1929
               04 Genus Boreacola Bernard, 1979
               05 Genus Conchentopyx Barnard, 1964
               06 Genus Curvemysella Habe, 1959
               07 Genus Devonia Winckworth, 1930
               08 Genus Entovalva Voeltzkow, 1890
               09 Genus Fastimysia Iredale, 1929
               10 Genus Fronsella Laseron, 1956
               11 Genus Issina Jousseaume, 1898
               12 Genus Kelliopsis Verrill & Bush, 1898
               13 Genus Kona Dall, Bartsch & Rehder, 1938
               14 Genus Lasaeoneaera Cossmann, 1913
               15 Genus Laubriereia Cossmann, 1887
               16 Genus Malvinasia Cooper & Preston, 1910
               17 Genus Mancikellia Dall, 1899
               18 Genus Merignacia Cossmann, 1914
               19 Genus Montacutona Yamamoto & Habe, 1959
               20 Genus Nipponomontacuta Yamamoto & Habe, 1961
               21 Genus Nipponomysella Yamamoto & Habe, 1959
               22 Genus Pileatona Laseron, 1956
               23 Genus Rochefortula Finlay, 1926
               24 Genus Sphaerumbonella Coen, 1933
               25 Genus Tahunanuia Powell, 1952