• Beyregrex brevaculeatus (R. Janssen, 1978) †
• Beyregrex cedillatus (Cossmann & Peyrot, 1924) †
• Beyregrex hantoniensis (Edwards, 1866) †
• Beyregrex pereger (Beyrich, 1854) †
• Beyregrex sarroniensis (Carez, 1879) †
• Chesatrophon chesapeakeanus (G. C. Martin, 1904) †
• Chesatrophon chesapeakensis [sic] † accepted as Chesatrophon chesapeakeanus (G. C. Martin, 1904) †
• Chesatrophon laevis (G. C. Martin, 1904) †
• Chesatrophon tetricus (Conrad, 1832) †
• Daphnellopsis bipartita (Vasseur, 1882) †
• Daphnellopsis bouilloni Gain, Belliard & Le Renard, 2025 †
• Daphnellopsis boutillieri (Cossmann, 1889) †
• Daphnellopsis fimbriata (Hinds, 1843)
• Daphnellopsis hungarica (R. Hoernes & Auinger, 1884) †
• Daphnellopsis hypselos Houart, 1995
• Daphnellopsis lamellosa Schepman, 1913
• Daphnellopsis lochi Houart, 2013
• Daphnellopsis lozoueti Houart, 2013 †
• Daphnellopsis murex Hedley, 1922 accepted as Lindapterys murex (Hedley, 1922)
• Daphnellopsis ogormani (Cossmann, 1923) †
• Daphnellopsis perfoliata (Bellardi, 1873) †
• Daphnellopsis pinedai Houart, 2013 †
• Daphnellopsis tournoueri Lozouet, Ledon & Lesport, 1994 †
• Daphnellopsis traceyi Gain, Belliard & Le Renard, 2025 †
• Flexopteron acuticostatum (Staadt, 1913) †
• Flexopteron akainakares Houart & Héros, 2015
• Flexopteron albionis (Wrigley, 1930) †
• Flexopteron citima (Bellardi, 1873) †
• Flexopteron constantinense Merle, Pacaud, Ledon & Goret, 2024 †
• Flexopteron elatior (von Koenen, 1889) †
• Flexopteron flexuosum (Deshayes, 1865) †
• Flexopteron foliaceum (Melleville, 1843) †
• Flexopteron gallicum (Landau, Merle, Ceulemans & Van Dingenen, 2019) †
• Flexopteron goniostoma (M. Hörnes, 1853) †
• Flexopteron liancurtense Merle, Pacaud, Ledon & Goret, 2024 †
• Flexopteron oliverai (Kosuge, 1984) accepted as Pazinotus oliverai (Kosuge, 1984)
• Flexopteron philippinense Shuto, 1969 †
• Flexopteron philippinensis Shuto, 1969 † accepted as Flexopteron philippinense Shuto, 1969 †
• Flexopteron plateaui (Cossmann, 1907) †
• Flexopteron poppei (Houart, 1993)
• Flexopteron primanova (Houart, 1985)
• Flexopteron spinulosum (Deshayes, 1835) †
• Flexopteron subplicatilis (Wrigley, 1930) †
• Flexopteron zsoldosi (Z. Kovács & Vicián, 2020) †
• Harmatia guembeli (Dreger, 1892) †
• Harmatia guembeli guembeli (Dreger, 1892) †
• Harmatia guembeli longispina (Noszky, 1940) †
• Harmatia stephani (Noszky, 1940) †
• Harmatia tokodensis Z. Kovács & Vicián, 2020 †
• Homalocantha anatomica (Perry, 1811)
• Homalocantha anatomica elatensis Heiman & Mienis, 2009 accepted as Homalocantha anatomica (Perry, 1811)
• Homalocantha anomaliae Kosuge, 1979
• Homalocantha antecedens Ludbrook, 1958 † accepted as Eofavartia antecedens (Ludbrook, 1958) † accepted as Subpterynotus antecedens (Ludbrook, 1958) †
• Homalocantha calhounensis (E. H. Vokes, 1968) †
• Homalocantha crispangula (Heilprin, 1886) †
• Homalocantha digitata (G. B. Sowerby II, 1841)
• Homalocantha dondani D'Attilio & Kosuge, 1989
• Homalocantha dovpeledi Houart, 1982
• Homalocantha echiniformis Shikama, 1978 accepted as Favartia balteata (G. B. Sowerby II, 1841)
• Homalocantha elatensis Heiman & Mienis, 2009 accepted as Homalocantha anatomica (Perry, 1811)
• Homalocantha fauroti Jousseaume, 1888 accepted as Homalocantha anatomica (Perry, 1811)
• Homalocantha granpoderi Merle & Garrigues, 2011
• Homalocantha heptagonata (Bronn, 1831) †
• Homalocantha lamberti (Poirier, 1883)
• Homalocantha melanamathos (Gmelin, 1791)
• Homalocantha melanamathos f. chinii Biraghi, 1984 accepted as Homalocantha melanamathos (Gmelin, 1791)
• Homalocantha ninae Merle & Garrigues, 2011
• Homalocantha nivea Granpoder & Garrigues, 2014
• Homalocantha oxyacantha (Broderip, 1833)
• Homalocantha pauli (Benoist, 1880) †
• Homalocantha pele (Pilsbry, 1918)
• Homalocantha perpulchra (Bellardi, 1873) †
• Homalocantha pisori D'Attilio & Kosuge, 1989
• Homalocantha rota (Mawe, 1823) accepted as Homalocantha anatomica (Perry, 1811)
• Homalocantha scorpio (Linnaeus, 1758)
• Homalocantha secunda (Lamarck, 1822)
• Homalocantha sowerbyi Merle, Garrigues & Pointier, 2022
• Homalocantha subrudis (A. d'Orbigny, 1850) † accepted as Eofavartia subrudis (A. d'Orbigny, 1850) †
• Homalocantha talahabensis (K. Martin, 1895) †
• Homalocantha tortua (G. B. Sowerby I, 1834)
• Homalocantha vicdani D'Attilio & Kosuge, 1989
• Homalocantha zamboi (J. Q. Burch & R. L. Burch, 1960)
• Ingensiella anomala (Dell, 1956)
• Kotakasyrinx serratiformis H. Noda, 1980 † (uncertain > unassessed)
• Lenitrophon convexus (Suter, 1909)
• Lenitrophon suteri Stilwell & Zinsmeister, 1992 † (uncertain > taxon inquirendum)
• Lirosoma cretacea Wade, 1917 † accepted as Lomirosa cretacea (Wade, 1917) †
• Lirosoma mariana Petuch, 1988 †
• Lirosoma sulcosa (Conrad, 1830) †
• Marchia barclayana (H. Adams, 1873) accepted as Pterynotus barclayanus (H. Adams, 1873)
• Marchia bibbeyi Radwin & D'Attilio, 1976 accepted as Pterynotus bibbeyi (Radwin & D'Attilio, 1976)
• Marchia elongata ([Lightfoot], 1786) accepted as Pterynotus elongatus ([Lightfoot], 1786)
• Marchia pellucida (Reeve, 1845) accepted as Pterynotus pellucidus (Reeve, 1845)
• Minortrophon crassiliratus (Suter, 1908)
• Paramorea lirata Wade, 1917 †
• Paramorea paleocenica Guzhov, 2005 †
• Ponderia abessensis Lozouet, 1998 †
• Ponderia abies Houart, 1986
• Ponderia bispinosa (J. De C. Sowerby, 1823) †
• Ponderia caillati (Deshayes, 1865) †