Afrollonia Adegoke, 1977 † (habitat flag source)
Afrollonia Adegoke, 1977 † (current name source)
Afrollonia Adegoke, 1977 † (verified source for family)
Anomphalogaza Hickman, 2012 (verified source for family)
Anomphalogaza Hickman, 2012 (extant flag source)
Anomphalogaza Hickman, 2012 (habitat flag source)
Antimargarita Powell, 1951 (verified source for family)
Atira Stewart, 1927 † (verified source for family)
Callogaza Dall, 1881 (verified source for family)
Callogaza Dall, 1881 (extant flag source)
Callogaza Dall, 1881 (habitat flag source)
Crenatula Lamarck, 1803 (verified source for family)
Electroma Stoliczka, 1871 (verified source for family)
Ensipteria Nakazawa & Newell, 1968 † (verified source for family)
Eopinctada Tamura, 1961 † (verified source for family)
Euphenax Cox, 1931 † (verified source for family)
Exputens Vokes, 1939 † accepted as Nayadina Munier-Chalmas, 1864 † (source of synonymy)
Gaza Watson, 1879 (verified source for family)
Gervilleiognoma Aberhan & von Hillebrandt, 1996 † (verified source for family)
Gervilleiognoma Aberhan & von Hillebrandt, 1996 † (current name source)
Gervilleioperna Krumbeck, 1923 † (verified source for family)
Gervilletia Damborenea, 1987 † (verified source for family)
Igonoia Squires, 2011 † (verified source for family)
Igonoia Squires, 2011 † (current name source)
Joachymia Růžička, 1949 † (verified source for family)
Joachymia Růžička, 1949 † (current name source)
Lithotis Blanford, 1863 † (verified source for family)
Lithotis Blanford, 1863 † (current name source)
Margarites Gray, 1847 (verified source for family)
Margaritesidae Thiele, 1924 (name verified source)
Margaritesidae Thiele, 1924 (current name source)
Margaritesidae Thiele, 1924 (habitat flag source)
Margaritesidae Thiele, 1924 (basis of record)
Margaritesidae Thiele, 1924 (taxonomy source)
Margaritesidae Thiele, 1924 (extant flag source)
Melinidae Meek & Hayden, 1865 accepted as Isognomonidae Woodring, 1925 (source of synonymy)
Mexicocollonia Poppe & Tagaro, 2026 (verified source for family)
Nayadina Munier-Chalmas, 1864 † (current name source)
Nayadina Munier-Chalmas, 1864 † (verified source for family)
Otapiria Marwick, 1925 † (verified source for family)
Pachysphaera Pilsbry in Tryon & Pilsbry, 1892 (extant flag source)
Pachysphaera Pilsbry in Tryon & Pilsbry, 1892 (habitat flag source)
Pachysphaera Pilsbry in Tryon & Pilsbry, 1892 (verified source for family)
Pachysphaera Pilsbry in Tryon & Pilsbry, 1892 (current name source)
Palaeopteria Whiteaves, 1897 † (verified source for family)
Pedalionidae Stephenson, 1923 accepted as Isognomonidae Woodring, 1925 (source of synonymy)
Pseudaucella Marwick, 1926 † (verified source for family)
Ptychocochlis Simpson, 1895 accepted as Poteria Gray in Baird, 1850 (source of synonymy)
Rhynchopterus Gabb, 1864 † accepted as Pteria Scopoli, 1777 (source of synonymy)
Vulsella Röding, 1798 (verified source for family)
Vulsellidae Gray, 1854 † (current name source)
Vulsellina Raincourt, 1876 † (verified source for family)
Waagenoperna Tokuyama, 1959 † (verified source for family)