1. Family Anthomastidae Verrill, 1922 accepted as Anthomastinae Verrill, 1922
2. Family Aulopsammiidae Reuss, 1854
3. Family Briareidae Gray, 1859
4. Suborder Calcaxonia accepted as Scleralcyonacea
5. Family Chelidonisididae Heestand Saucier, France & Watling, 2021
6. Family Chrysogorgiidae Verrill, 1883
7. Family Coralliidae Lamouroux, 1812
8. Family Cornulariidae Dana, 1846
9. Family Dasygorgidae Studer, 1887 accepted as Chrysogorgiidae Verrill, 1883 (unaccepted > junior subjective synonym)
10. Family Dendrobrachiidae Brook, 1889
11. Family Ellisellidae Gray, 1859
12. Family Erythropodiidae Kükenthal, 1916
13. Family Gorgonellidae Valenciennes, 1855 accepted as Ellisellidae Gray, 1859 (unaccepted > junior subjective synonym)
14. Family Helioporidae Moseley, 1876
15. Family Huziogorgiidae López-González, 2020 accepted as Ifalukellidae Bayer, 1955 (unaccepted > junior subjective synonym)
16. Family Ideogorgiidae McFadden, van Ofwegen & Quattrini, 2024
17. Family Ideogorgiidae McFadden, van Ofwegen & Quattrini, 2022 accepted as Ideogorgiidae McFadden, van Ofwegen & Quattrini, 2024 (unaccepted > unavailable name, published online only)
18. Family Ifalukellidae Bayer, 1955
19. Family Isidoidae Heestand Saucier, France & Watling, 2021
20. Family Keratoisididae Gray, 1870
21. Family Lithotelestidae Bayer & Muzik, 1977 accepted as Aulopsammiidae Reuss, 1854 (unaccepted > junior subjective synonym)
22. Family Malacogorgiidae Hickson, 1904 accepted as Ifalukellidae Bayer, 1955 (unaccepted > junior subjective synonym)
23. Family Mopseidae Gray, 1870
24. Family Paragorgiidae Kükenthal, 1916 accepted as Coralliidae Lamouroux, 1812 (unaccepted > junior subjective synonym)
25. Family Parasphaerascleridae McFadden & van Ofwegen, 2013
26. Family Parisididae Aurivillius, 1931
27. Superfamily Pennatuloidea Ehrenberg, 1834
28. Family Pleurogorgiidae Cairns, Cordeiro & Alderslade in Cairns et al., 2021
29. Family Primnoidae Milne Edwards, 1857
30. Family Sarcodictyonidae McFadden, van Ofwegen & Quattrini, 2024
31. Family Sarcodictyonidae McFadden, van Ofwegen & Quattrini, 2022 accepted as Sarcodictyonidae McFadden, van Ofwegen & Quattrini, 2024 (unaccepted > unavailable name, published online only)
32. Family Scleralcyonacea incertae sedis (temporary name)
33. Family Spongiodermatidae Aurivillius, 1931 accepted as Spongiodermidae Wright & Studer, 1889 (unaccepted > misspelling - incorrect original spelling)
34. Family Spongiodermidae Wright & Studer, 1889

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