1. Family Batillariidae Thiele, 1929
2. Family Cerithiidae J. Fleming, 1822
3. Family Dialidae Kay, 1979
4. Family Diastomatidae Cossmann, 1894
5. Family Hemisinidae P. Fischer & Crosse, 1891
6. Family Litiopidae Gray, 1847
7. Family Melanopsidae H. Adams & A. Adams, 1854
8. Family Modulidae P. Fischer, 1884
9. Family Pachychilidae P. Fischer & Crosse, 1892
10. Family Pelycidiidae Ponder & S. J. Hall, 1983
11. Family Pickworthiidae Iredale, 1917
12. Family Planaxidae J. E. Gray, 1850
13. Family Potamididae H. Adams & A. Adams, 1854
14. Family Scaliolidae Jousseaume, 1912
15. Family Semisulcospiridae J. P. E. Morrison, 1952
16. Family Sherborniidae Iredale, 1917
17. Family Siliquariidae Anton, 1838
18. Family Thiaridae Gill, 1871 (1823)
19. Family Turritellidae Lovén, 1847
20. Family Zemelanopsidae Neiber & Glaubrecht, 2019
21. Family Alabinidae Dall, 1927 accepted as Bittiinae Cossmann, 1906
22. Family Archimediellidae Starobogatov, 1982 accepted as Turritellinae Lovén, 1847
23. Family Cerithideidae Houbrick, 1988 accepted as Potamididae H. Adams & A. Adams, 1854
24. Family Fossaridae A. Adams, 1860 accepted as Fossarinae A. Adams, 1860 (original rank)
25. Family Melanatriidae Thiele, 1921 accepted as Pachychilidae P. Fischer & Crosse, 1892
26. Family Obtortionidae Thiele, 1925 accepted as Scaliolidae Jousseaume, 1912
27. Family Pachymelaniidae Bandel & Kowalke, 1999 accepted as Hemisinidae P. Fischer & Crosse, 1891 (unaccepted > junior subjective synonym)
28. Family Pyrazidae Hacobjan, 1972 accepted as Batillariidae Thiele, 1929
29. Family Reynellonidae Iredale, 1917 accepted as Pickworthiinae Iredale, 1917
30. Family Styliferinidae Bandel, 1992 accepted as Litiopidae Gray, 1847 (not available: no description)
31. Family Telescopiidae J. K. Allan, 1950 accepted as Potamididae H. Adams & A. Adams, 1854
32. Family Tenagodidae Gill, 1871 accepted as Siliquariidae Anton, 1838
33. Family Vermiculariidae Dall, 1915 accepted as Turritellinae Lovén, 1847
34. Family Cerithioidea incertae sedis (temporary name)

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