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

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