1. Family Acanthaspidiidae Menzies, 1962
2. Family Basoniscidae Wilson, 2024
3. Family Dendrotionidae Vanhöffen, 1914
4. Family Desmosomatidae G. O. Sars, 1897
5. Family Echinothambematidae Menzies, 1956
6. Family Haplomunnidae Wilson, 1976
7. Family Haploniscidae Hansen, 1916
8. Family Ischnomesidae Hansen, 1916
9. Family Janirellidae Menzies, 1956
10. Family Janiridae G. O. Sars, 1897
11. Family Joeropsididae Nordenstam, 1933
12. Family Katianiridae Svavarsson, 1987
13. Family Lepidocharontidae Galassi & Bruce in Galassi, Bruce, Fiasca & Dole-Olivier, 2016
14. Family Macrostylidae Hansen, 1916
15. Family Mesosignidae Schultz, 1969
16. Family Mictosomatidae Wolff, 1965
17. Family Munnidae G. O. Sars, 1897
18. Family Munnopsidae Lilljeborg, 1864
19. Family Nannoniscidae Hansen, 1916
20. Family Paramunnidae Vanhöffen, 1914
21. Family Pleurocopidae Fresi & Schiecke, 1972
22. Family Santiidae Kussakin, 1988
23. Family Thambematidae Stebbing, 1912
24. Family Urstylidae Riehl, Wilson & Malyutina, 2014
25. Family Xenosellidae Just, 2005
26. Family Abyssianiridae Menzies, 1956 accepted as Paramunnidae Vanhöffen, 1914 (unaccepted > junior subjective synonym)
27. Family Acanthaspidae Menzies, 1962 accepted as Acanthaspidiidae Menzies, 1962 (unaccepted > misspelling - incorrect original spelling)
28. Tribe Antiasini Nordenstam, 1933 accepted as Santiidae Kussakin, 1988 (unaccepted > unavailable name, type genus is a junior homonym)
29. Family Dendrotiidae Nordenstam, 1933 accepted as Dendrotionidae Vanhöffen, 1914 (unaccepted > junior objective synonym)
30. Tribe Dendrotiini Nordenstam, 1933 accepted as Dendrotionidae Vanhöffen, 1914 (unaccepted > junior objective synonym)
31. Subfamily Desmosomidae G. O. Sars, 1897 accepted as Desmosomatidae G. O. Sars, 1897 (unaccepted > misspelling - incorrect original spelling)
32. Family Echinothambemidae Menzies, 1956 accepted as Echinothambematidae Menzies, 1956 (unaccepted > misspelling - incorrect original spelling)
33. Family Eurycopidae Hansen, 1916 accepted as Eurycopinae Hansen, 1916 (unaccepted > superseded rank)
34. Tribe Haploniscini Hansen, 1916 accepted as Haploniscidae Hansen, 1916 (unaccepted > superseded rank)
35. Family Ianirellidae Menzies, 1956 accepted as Janirellidae Menzies, 1956 (unaccepted > misspelling - incorrect original spelling)
36. Family Ianiridae G. O. Sars, 1897 accepted as Janiridae G. O. Sars, 1897 (unaccepted > misspelling - incorrect original spelling)
37. Family Ilyarachnidae Hansen, 1916 accepted as Ilyarachninae Hansen, 1916 (unaccepted > superseded rank)
38. Tribe Ilyarachnini Hansen, 1916 accepted as Ilyarachninae Hansen, 1916 (unaccepted > superseded rank)
39. Tribe Ischnomesini Hansen, 1916 accepted as Ischnomesidae Hansen, 1916 (unaccepted > superseded rank)
40. Family Jaeropsidae Nordenstam, 1933 accepted as Joeropsididae Nordenstam, 1933 (unaccepted > misspelling - incorrect subsequent spelling, name formed from incorrect spelling of type genus)
41. Family Joeropsidae Nordenstam, 1933 accepted as Joeropsididae Nordenstam, 1933 (emended)
42. Family Lipomeridae Tattersall, 1905 accepted as Lipomerinae Tattersall, 1905 (unaccepted > superseded rank)
43. Tribe Macrostylini Hansen, 1916 accepted as Macrostylidae Hansen, 1916 (unaccepted > superseded rank)
44. Family Microjaniridae Bocquet & Lévi, 1955 accepted as Janiridae G. O. Sars, 1897 (unaccepted > unavailable name, elevation to family rank of subfamily Microjanirinae nomen nudum [not based on a valid genus name])
45. Family Munnopsididae Lilljeborg, 1864 accepted as Munnopsidae Lilljeborg, 1864 (corrected spelling but not in prevailing usage)
46. Tribe Nannoniscini Hansen, 1916 accepted as Nannoniscidae Hansen, 1916 (unaccepted > superseded rank)
47. Family Parasellidae Hansen, 1905 accepted as Janiridae G. O. Sars, 1897 (unaccepted > unavailable name, not based on a available genus name)
48. Family Pleurogoniidae Nordenstam, 1933 accepted as Paramunnidae Vanhöffen, 1914 (unaccepted > junior subjective synonym)
49. Tribe Pleurogoniini Nordenstam, 1933 accepted as Paramunnidae Vanhöffen, 1914 (unaccepted > junior subjective synonym)
50. Family Pseudomesidae Hansen, 1916 accepted as Desmosomatidae G. O. Sars, 1897 (unaccepted > junior subjective synonym)
51. Tribe Pseudomesini Hansen, 1916 accepted as Pseudomesidae Hansen, 1916 accepted as Desmosomatidae G. O. Sars, 1897 (unaccepted > superseded rank)
52. Family Santidae Kussakin, 1988 accepted as Santiidae Kussakin, 1988 (unaccepted > misspelling - incorrect original spelling)
53. Tribe Schistosomatini Hansen, 1916 accepted as Mictosomatidae Wolff, 1965 (unaccepted > unavailable name, type genus is a junior homonym)
54. Family Janiroidea incertae sedis (temporary name)

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