1. Superfamily Archinacelloidea Knight, 1952 †
2. Superfamily Clisospiroidea S. A. Miller, 1889 †
3. Family Codonocheilidae S. A. Miller, 1889 †
4. Family Craspedostomatidae Wenz, 1938 †
5. Family Crassimarginatidae Frýda, R. B. Blodgett & Lenz, 2002 †
6. Family Discohelicidae M. Schröder, 1995 †
7. Genus Eesticonus Peel, 2024 †
8. Genus Eiserhardtia Frýda, 2000 †
9. Genus Eocryphispira X.-H. Yu, 1987 †
10. Superfamily Euomphaloidea C. A. White, 1877 †
11. Family Isospiridae Wangberg-Eriksson, 1964 †
12. Superfamily Loxonematoidea Koken, 1889 †
13. Genus Luoguella H.-Z. Pan & Erwin, 2002 †
14. Genus Luoguispira H.-Z. Pan & Erwin, 2002 †
15. Superfamily Ophiletoidea Koken, 1907 †
16. Superfamily Oriostomatoidea Koken, 1896 †
17. Superfamily Palaeotrochoidea Knight, 1956 †
18. Family Paraturbinidae Cossmann, 1916 †
19. Genus Peverilia Arkell, 1941 †
20. Genus Phanerotinus J. De C. Sowerby, 1843 †
21. Family Pragoserpulinidae Frýda, 1998 †
22. Family Raphistomatidae Koken, 1896 †
23. Genus Rhenomphalus Bandel & Frýda, 1998 †
24. Family Rhytidopilidae Starobogatov, 1976 †
25. Family Scoliostomatidae Frýda, R. B. Blodgett & Lenz, 2002 †
26. Family Sinuopeidae Wenz, 1938 †
27. Genus Solandangella Horný, 1995 †
28. Superfamily Trochonematoidea Zittel, 1895 †
29. Genus Undularia Koken, 1892 †
30. Family Yuopisthonematidae Nützel, 2017 †
31. Genus Alciope A. Adams, 1861 (uncertain > taxon inquirendum, Invalid: junior homonym of Alciope Rafinesque, 1814 [Crustacea] and Alciope Grube, 1850.)
32. Genus Castellum O. Meyer, 1887 † (uncertain > unassessed)
33. Infraclass Tretospira † (uncertain > unassessed)
34. Genus Vayssieria Fenaux, 1942 (uncertain > taxon inquirendum)
35. Genus Buccinites Gesner, 1758 (unaccepted > unavailable name)
36. Family Ceratopeidae Yochelson & Bridge, 1957 † accepted as Raphistomatidae Koken, 1896 †
37. Family Opisthonematidae Yu, 1976 † accepted as Yuopisthonematidae Nützel, 2017 † (invalid: type genus a junior homonym)
38. Superfamily Straparollinoidea P. J. Wagner, 2002 † accepted as Euomphaloidea C. A. White, 1877 † (unaccepted > junior subjective synonym)
39. Genus Toxonema J. Böhm, 1895 † accepted as Undularia Koken, 1892 † (unaccepted > junior objective synonym, with the same type species)

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