1. Family Australomedusidae Russell, 1971
2. Family Axoporidae Boschma, 1951 †
3. Family Balellidae Stechow, 1922
4. Family Bougainvilliidae Lütken, 1850
5. Family Bythotiaridae Maas, 1905
6. Family Clathrozoellidae Peña Cantero, Vervoort & Watson, 2003
7. Family Cordylophoridae von Lendenfeld, 1885
8. Family Cytaeididae L. Agassiz, 1862
9. Family Eucodoniidae Schuchert, 1996
10. Family Eudendriidae L. Agassiz, 1862
11. Family Heterotentaculidae Schuchert, 2010
12. Family Hydractiniidae L. Agassiz, 1862
13. Family Jeanbouilloniidae Pagès, Flood & Youngbluth, 2006
14. Family Magapiidae Schuchert & Bouillon, 2009
15. Family Niobiidae Petersen, 1979
16. Family Oceaniidae Eschscholtz, 1829
17. Family Pandeidae Haeckel, 1879
18. Family Proboscidactylidae Hand & Hendrickson, 1950
19. Family Protiaridae Haeckel, 1879
20. Family Ptilocodiidae Coward, 1909
21. Family Rathkeidae Russell, 1953
22. Family Rhysiidae Brinckmann, 1965
23. Family Similiclavidae Calder, Choong & McDaniel, 2015
24. Family Stylasteridae Gray, 1847
25. Family Trichydridae Hincks, 1868
26. Family Tubiclavoididae Moura, Cunha & Schuchert, 2007
27. Family Amphinemidae Haeckel, 1879 accepted as Pandeidae Haeckel, 1879 (unaccepted > junior subjective synonym)
28. Family Atractylidae Hincks, 1868 accepted as Bougainvilliidae Lütken, 1850 (synonym)
29. Family Bimeridae Allman, 1872 accepted as Bougainvilliidae Lütken, 1850 (synyonym)
30. Family Bougainvilleae Lütken, 1850 accepted as Bougainvilliidae Lütken, 1850 (incorrect name formation)
31. Family Calycopsidae Mayer, 1910 accepted as Bythotiaridae Maas, 1905 (unaccepted > junior subjective synonym)
32. Family Clavidae McCrady, 1859 accepted as Hydractiniidae L. Agassiz, 1862 (unaccepted > junior subjective synonym)
33. Family Clavopsellidae Thiel, 1962 accepted as Bougainvilliidae Lütken, 1850 (synonym)
34. Family Dicorynidae Allman, 1864 accepted as Bougainvilliidae Lütken, 1850 (synonym)
35. Subfamily Dinemidae Haeckel, 1879 accepted as Pandeidae Haeckel, 1879 (invalid name)
36. Infraorder Eudendroidae accepted as Eudendriidae L. Agassiz, 1862
37. Family Hippocrenidae McCrady, 1959 accepted as Bougainvilliidae Lütken, 1850 (synonym)
38. Family Hydrichthyidae Stechow, 1922 accepted as Pandeidae Haeckel, 1879
39. Family Janariidae Stechow, 1921 accepted as Hydractiniidae L. Agassiz, 1862 (unaccepted > junior subjective synonym)
40. Family Laingiidae Bouillon, 1978 accepted as Magapiidae Schuchert & Bouillon, 2009 (based on invalid genus)
41. Family Lizusidae Haeckel, 1879 accepted as Bougainvilliidae Lütken, 1850
42. Subfamily Lizziinae Russell, 1953 accepted as Rathkeidae Russell, 1953 (synonym)
43. Family Margelidae Haeckel, 1879 accepted as Bougainvilliidae Lütken, 1850 (synonym)
44. Superfamily Margelina Haeckel, 1879 (invalid grouping (polyphyletic))
45. Family Myrionemidae Pictet, 1893 accepted as Eudendriidae L. Agassiz, 1862 (unaccepted > junior subjective synonym)
46. Family Nemopsidae L. Agassiz, 1862 accepted as Bougainvilliidae Lütken, 1850 (synonym)
47. Subfamily Pachycordylini Cockerell, 1911 accepted as Bougainvilliidae Lütken, 1850 (synonym)
48. Family Pandeiidae Haeckel, 1879 accepted as Pandeidae Haeckel, 1879 (unaccepted > misspelling - incorrect subsequent spelling)
49. Family Platystomidae Zhang, 1982 accepted as Australomedusidae Russell, 1971 (invalid name as based on invalid genus)
50. Family Russelliidae Kramp, 1957 accepted as Heterotentaculidae Schuchert, 2010 (invalid name)
51. Family Thamnostomidae Haeckel, 1879 accepted as Bougainvilliidae Lütken, 1850 (synonym)
52. Family Tiaridae Haeckel, 1879 accepted as Pandeidae Haeckel, 1879 (invalid name, synonym)
53. Family Tubidendridae Nutting, 1906 accepted as Balellidae Stechow, 1922 (incorrect name formation on not existant genus)
54. Family Filifera incertae sedis (temporary name)
55. Infraorder Pandeida (uncertain > nomen dubium, unfounded grouping)

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