1. Family Amphinemidae Haeckel, 1879 accepted as Pandeidae Haeckel, 1879 (synonym, not in use)
2. Family Atractylidae Hincks, 1868 accepted as Bougainvilliidae Lütken, 1850 (synonym)
3. Family Australomedusidae Russell, 1971
4. Family Balellidae Stechow, 1922
5. Family Bimeridae Allman, 1872 accepted as Bougainvilliidae Lütken, 1850 (synyonym)
6. Family Bougainvilleae Lütken, 1850 accepted as Bougainvilliidae Lütken, 1850 (incorrect name formation)
7. Family Bougainvilliidae Lütken, 1850
8. Family Bythotiaridae Maas, 1905
9. Family Calycopsidae Mayer, 1910 accepted as Bythotiaridae Maas, 1905 (synonym)
10. Tribe Calycopsidi Mayer, 1910 accepted as Bythotiaridae Maas, 1905 (synonym)
11. Subfamily Calycopsini Mayer, 1910 accepted as Bythotiaridae Maas, 1905 (synonym)
12. Family Clathrozoellidae Peña Cantero, Vervoort & Watson, 2003
13. Family Clavidae McCrady, 1859 accepted as Hydractiniidae L. Agassiz, 1862 (synonym)
14. Family Clavopsellidae Thiel, 1962 accepted as Bougainvilliidae Lütken, 1850 (synonym)
15. Family Cordylophoridae von Lendenfeld, 1885
16. Family Cytaeididae L. Agassiz, 1862
17. Family Dicorynidae Allman, 1864 accepted as Bougainvilliidae Lütken, 1850 (synonym)
18. Subfamily Dinemidae Haeckel, 1879 accepted as Pandeidae Haeckel, 1879 (invalid name)
19. Family Eucodoniidae Schuchert, 1996
20. Family Eudendriidae L. Agassiz, 1862
21. Infraorder Eudendroidae accepted as Eudendriidae L. Agassiz, 1862
22. Family Filifera incertae sedis (temporary name)
23. Family Heterotentaculidae Schuchert, 2010
24. Family Hippocrenidae McCrady, 1959 accepted as Bougainvilliidae Lütken, 1850 (synonym)
25. Family Hydractiniidae L. Agassiz, 1862
26. Family Hydrichthyidae Stechow, 1922 accepted as Pandeidae Haeckel, 1879
27. Family Janariidae Stechow, 1921 accepted as Hydractiniidae L. Agassiz, 1862 (unaccepted > junior subjective synonym)
28. Family Jeanbouilloniidae Pagès, Flood & Youngbluth, 2006
29. Family Laingiidae Bouillon, 1978 accepted as Magapiidae Schuchert & Bouillon, 2009 (original genus is invalid homonym)
30. Subfamily Lizusidae Haeckel, 1879 accepted as Bougainvilliidae Lütken, 1850
31. Subfamily Lizziinae Russell, 1953 accepted as Rathkeidae Russell, 1953 (synonym)
32. Family Magapiidae Schuchert & Bouillon, 2009
33. Family Margelidae Haeckel, 1879 accepted as Bougainvilliidae Lütken, 1850 (synonym)
34. Superfamily Margelina Haeckel, 1879 (invalid grouping (polyphyletic))
35. Family Myrionemidae Pictet, 1893 accepted as Eudendriidae L. Agassiz, 1862 (unaccepted > junior subjective synonym)
36. Family Nemopsidae L. Agassiz, 1862 accepted as Bougainvilliidae Lütken, 1850 (synonym)
37. Family Niobiidae Petersen, 1979
38. Family Oceaniidae Eschscholtz, 1829
39. Subfamily Pachycordylini Cockerell, 1911 accepted as Bougainvilliidae Lütken, 1850 (synonym)
40. Infraorder Pandeida (uncertain > nomen dubium, unfounded grouping)
41. Family Pandeidae Haeckel, 1879
42. Family Pandeiidae Haeckel, 1879 accepted as Pandeidae Haeckel, 1879 (Spelling variation)
43. Family Platystomidae Zhang, 1982 accepted as Australomedusidae Russell, 1971 (invalid name)
44. Family Proboscidactylidae Hand & Hendrickson, 1950
45. Family Protiaridae Haeckel, 1879
46. Family Ptilocodiidae Coward, 1909
47. Family Rathkeidae Russell, 1953
48. Family Rhysiidae Brinckmann, 1965
49. Family Russelliidae Kramp, 1957 accepted as Heterotentaculidae Schuchert, 2010 (invalid name)
50. Family Similiclavidae Calder, Choong & McDaniel, 2015
51. Family Stylasteridae Gray, 1847
52. Family Thamnostomidae Haeckel, 1879 accepted as Bougainvilliidae Lütken, 1850 (synonym)
53. Family Tiaridae Haeckel, 1879 accepted as Pandeidae Haeckel, 1879 (invalid name, synonym)
54. Family Trichydridae Hincks, 1868
55. Family Tubiclavoididae Moura, Cunha & Schuchert, 2007
56. Family Tubidendridae Nutting, 1906 accepted as Balellidae Stechow, 1922 (incorrect name formation on not existant genus)

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