Gastropoda Cuvier, 1797
Acrostylus Cossmann, 1896
Acteonidae Orbigny, 1842
Amathinidae Ponder, 1987
Ampezzamilda
Ampezzogyra Bandel, 1996
Aphanoptyxis Cossmann, 1896
Aphanotaenia Cossmann, 1898
Aptyxiella Fischer, 1885
Architectonicidae Gray, 1850
Ariomphalus Bandel & Riedel, 1994
Auristomia Monterosato, 1884
Bandellina Schroder, 1995
Boehmia Kutassy, 1940
Boehmiola Strand, 1928
Brouzetia Cossmann, 1916
Campanelle
Campichia Cossmann, 1896
Camponaxis Bandel, 1995
Camponeila
Carboninia Bandel, 1996
Cassianaxis Bandel, 1996
Cassianebala Bandel, 1996
Cassianilda Bandel, 1995
Cimidae Warén, 1993
Colpostomia Cossmann, 1921
Cornirostridae Ponder, 1990
Costaella Kollmann, 1976
Crimella Pchelintsev, 1965
Cryptoplocus Pictet & Campiche, 1862
Curetia Cossmann, 1916
Curetina Cossmann, 1920
Cyclodostomia Sacco, 1892
Cyclostromella
Diptyxiella Aliev & Lysenko, 1980
Discobasis Cossmann, 1888
Doliella Monterosato, 1880
Dolomitella Bandel, 1994
Ebalidae Bandel, 1994
Elatioriella Pchelintsev, 1968
Eleganella
Endiaplocus Cossmann, 1896
Endiatrachelus Cossmann, 1898
Ephyra Böhm, 1901
Eustomia Cossmann, 1921
Falsostyliola Colom, 1986
Faluniella Cossmann, 1921
Favria Cossmann, 1916
Fibulella Wenz, 1940
Fibuloptygmatis Pchelintsev, 1968
Fibuloptyxis Cossmann, 1898
Fusiptyxis Lyssenko & Aliev, 1990
Gemmellaroia Lyssenko, 1990
Goniodostomia Pilsbry & Johnson, 1917
Gonzagia Maury, 1924
Haploptyxis Akopyan, 1976
Heida Dall & Bartsch, 1904
Hyalogyrinidae Warén & Bouchet, 1993
Iphiana Dall & Bartsch, 1904
Italoptygmatis Akopyan, 1973
Itieria Matheron, 1842
Itruvia Stoliczka, 1867
Jaccardiella Akopyan, 1976
Julesia Cox, 1954
Lacriforma
Laevinerinea Dietrich, 1939
Laeviselica Gougerot & le Renard, 1977
Loxoptyxis Cossmann, 1888
Macrodostomia Sacco, 1892
Mathildidae Dall, 1889
Melanioptyxis Cossmann, 1896
Mrhilaia Pervinquière, 1912
Multiptyxis
Neonerinea Akopyan, 1973
Neoptyxis Pcelincev, 1934
Nerineidae Zittel, 1873
Nerineoptyxis Dzhalilov, 1975
Nipteraxis Cossmann, 1915
Nisiturris Dall & Bartsch, 1906
Nisostomia Cossmann, 1921
Noerrevanga Waren & Schander, 1993
Odostomidea Pilsbry & Johnson, 1917
Oligoptyxis
Omalogyridae P. Fischer, 1885
Pachysyrnola Cossmann, 1907
Paleoalvania
Parasimplotyxis
Pentaptyxis Pchelintsev, 1968
Phaneroptyxis Cossmann, 1896
Plesioptygmatis Böse, 1906
Proceritella Fischer, 1961
Ptygmatis Sharpe, 1850
Pyramidellidae Gray, 1840
Pyramistomia Cossmann, 1921
Pyrgolidium Monterosato, 1884
Raulinia Mayer, 1864
Ravnostomia Adegoke, 1977
Rinaldoconchus Bandel, 1988
Rissoellidae Gray, 1850
Rugiferia Lysenko, 1974
Saccoina Dall & Bartsch, 1904
Semisolarium Cossmann, 1915
Sequania Cossmann, 1895
Sinustomia Cossmann, 1921
Sollariaxis
Stellaxis Dall, 1892
Sulcorinella Dall & Bartsch, 1904
Sulcoturbonilla Sacco, 1892
Taphrostomia Cossmann, 1921
Tauricella Pchelintsev, 1968
Teleoptyxis Olsson, 1934
Trimalaxis Garvie, 1996
Trochalia Sharpe, 1850
Ulfa Dall & Bartsch, 1904
Upella Pchelintsev, 1968
Valanginella Pchelintsev, 1968
Valvatidae O.F. Müller, 1774
Voluspa Dall & Bartsch, 1904
Wangaloa Finlay, 1927
Xylodisculidae Warén, 1992