Acmaeidae Forbes, 1850 (basis of record)
Acteonoidea A. d'Orbigny, 1842 (basis of record)
Admetinae Troschel, 1865 (status source)
Aegiretidae P. Fischer, 1883 accepted as Aegiridae P. Fischer, 1883 (additional source)
Aeolidida accepted as Aeolidioidea Gray, 1827 (basis of record)
Akeridae Mazzarelli, 1891 (additional source)
Ampullinidae Cossmann, 1919 (basis of record)
Ampullospiridae L. R. Cox, 1930 † accepted as Ampullinidae Cossmann, 1919 (source of synonymy)
Anatomidae J. H. McLean, 1989 (basis of record)
Aplysiomorpha accepted as Aplysiida (additional source)
Archidorididae Bergh, 1891 accepted as Dorididae Rafinesque, 1815 (additional source)
Architectibranchia represented as Heterobranchia incertae sedis (basis of record)
Assimineidae H. Adams & A. Adams, 1856 (basis of record)
Athoracophoridae P. Fischer, 1883 (1860) (basis of record)
Athoracophorinae P. Fischer, 1883 (1860) (basis of record)
Bathyberthellini F. J. García, Troncoso, Cervera & García-Gómez, 1996 accepted as Pleurobranchidae Gray, 1827 (basis of record)
Bathydorididae Bergh, 1891 (additional source)
Bathydoridoidea Bergh, 1891 (basis of record)
Bullidae Gray, 1827 (source of synonymy)
Cadlinidae Bergh, 1891 (basis of record)
Caenogastropoda (basis of record)
Calliostomatinae Thiele, 1924 (1847) (basis of record)
Calliostomatini Thiele, 1924 (1847) accepted as Calliostomatinae Thiele, 1924 (1847) (basis of record)
Calyptraeidae Lamarck, 1809 (basis of record)
Calyptraeoidea Lamarck, 1809 (basis of record)
Campaniloidea (taxonomy source)
Campaniloidea (basis of record)
Cancellarioidea Forbes & Hanley, 1851 accepted as Volutoidea Rafinesque, 1815 (additional source)
Capulidae J. Fleming, 1822 (additional source)
Cassidae Latreille, 1825 (basis of record)
Cassoidea accepted as Tonnoidea Suter, 1913 (1825) (basis of record)
Cavolinioidea J. E. Gray, 1850 (1815) (basis of record)
Cephalaspidea (basis of record)
Cerithiidae J. Fleming, 1822 (basis of record)
Cerithiinae J. Fleming, 1822 (basis of record)
Cerithioidea J. Fleming, 1822 (additional source)
Cerithiopsoidea accepted as Triphoroidea J. E. Gray, 1847 (basis of record)
Charcotiidae Odhner, 1926 accepted as Curnonidae d'Udekem d'Acoz, 2017 (basis of record)
Cingulopsidae Fretter & Patil, 1958 (additional source)
Cingulopsoidea Fretter & Patil, 1958 (basis of record)
Clathurellidae H. Adams & A. Adams, 1858 (additional source)
Clionidae Rafinesque, 1815 (basis of record)
Clionoidea Rafinesque, 1815 (basis of record)
Cocculinidae Dall, 1882 (basis of record)
Cocculinoidea Dall, 1882 (basis of record)
Cochlespiridae A. W. B. Powell, 1942 (basis of record)
Conidae J. Fleming, 1822 (basis of record)
Conoidea J. Fleming, 1822 (basis of record)
Crepiduloidea J. Fleming, 1822 accepted as Calyptraeoidea Lamarck, 1809 (additional source)
Cuthonidae Odhner, 1934 (basis of record)
Cylichnidae H. Adams & A. Adams, 1854 (basis of record)
Cymatiinae Iredale, 1913 (1854) accepted as Cymatiidae Iredale, 1913 (additional source)
Cymbiinae H. Adams & A. Adams, 1853 (1847) (additional source)
Cymbuliidae Gray, 1840 (basis of record)
Cymbuliinae Gray, 1840 (basis of record)
Cymbulioidea Gray, 1840 (basis of record)
Diaphanidae Odhner, 1914 (1857) (basis of record)
Diaphaninae Odhner, 1914 (1857) (basis of record)
Diaphanoidea Odhner, 1914 (1857) accepted as Cylichnoidea H. Adams & A. Adams, 1854 (basis of record)
Discodorididae Bergh, 1891 (basis of record)
Dorididae Rafinesque, 1815 (additional source)
Doridoidea Rafinesque, 1815 (basis of record)
Doridoidei (basis of record)
Dotidae Gray, 1853 (basis of record)
Eatoniellidae Ponder, 1965 (basis of record)
Ellobiinae L. Pfeiffer, 1854 (1822) (basis of record)
Epitoniidae S. S. Berry, 1910 (1812) (additional source)
Epitonioidea S. S. Berry, 1910 (1812) (basis of record)
Euctenidiacea accepted as Doridina (basis of record)
Eulimidae R. A. Philippi, 1853 (basis of record)
Eulimoidea R. A. Philippi, 1853 accepted as Vanikoroidea Gray, 1840 (basis of record)
Eumetulidae A. N. Golikov & Starobogatov, 1975 accepted as Eumetulinae A. N. Golikov & Starobogatov, 1975 (basis of record)
Eumetulinae A. N. Golikov & Starobogatov, 1975 (basis of record)
Eupulmonata (basis of record)
Ficidae Meek, 1864 (1840) (basis of record)
Ficoidea Meek, 1864 (1840) (basis of record)
Fionidae Gray, 1857 (additional source)
Fionoidea Gray, 1857 (basis of record)
Fossaridae A. Adams, 1860 accepted as Fossarinae A. Adams, 1860 (basis of record)
Gastropoda (basis of record)
Globisininae A. W. B. Powell, 1933 (basis of record)
Gnathodoridacea accepted as Bathydoridoidei (basis of record)
Hygrophila (basis of record)
Hypsogastropoda (basis of record)
Lacunidae Gray, 1857 accepted as Littorinidae Children, 1834 (basis of record)
Laevilitorininae D. Reid, 1989 (basis of record)
Lepetellidae Dall, 1882 (basis of record)
Lepetellinae Dall, 1882 accepted as Lepetellidae Dall, 1882 (basis of record)
Lepetelloidea Dall, 1882 (basis of record)
Lepetidae Gray, 1850 (additional source)
Litiopidae Gray, 1847 (basis of record)
Littorinidae Children, 1834 (basis of record)
Littorinimorpha (basis of record)
Littorinoidea Children, 1834 (basis of record)
Lottiidae Gray, 1840 (additional source)
Lottiinae Gray, 1840 (basis of record)
Lottiini Gray, 1840 (basis of record)
Lottioidea Gray, 1840 (basis of record)
Marginellinae J. Fleming, 1828 (basis of record)
Mathildidae Dall, 1889 (basis of record)