1. Genus Actinothrix J.E.Gray, 1864
2. Genus Acuasiphonoria Lijing Liu, Yasheng Wu, H.J.Yang & R.Riding, 2016 †
3. Genus Ammassolinea P.Hasler, P.Dvorák, A.Poulücková & D.A.Casamatta, 2014
4. Genus Angusticellularia Vologdin, 1962 †
5. Genus Animikiea Barghoorn, 1965
6. Genus Archaeonema J.W.Schopf, 1968 †
7. Genus Arturoa P.González, 1951
8. Genus Asperatofilum T.N.Hermann, 1989 †
9. Genus Atractella Printz, 1921
10. Genus Avictuspirulina P.K.Strother, A.H.Knoll & Barghoorn, 1983 †
11. Genus Baaleninema Samylina, Sinetova, Kupriyanova & Tourova, 2021
12. Genus Botuobia Pjatiletov, 1979 †
13. Genus Brevitrichoides Jankauskas, 1980 †
14. Genus Calyptothrix J.W.Schopf, 1968 †
15. Genus Capillus Caires, Sant'Anna & Nunes, 2018
16. Genus Cephalonyx Weiss, 1984 †
17. Genus Cephalophytarion J.W.Schopf, 1968 †
18. Genus Chthonoblastus Kützing, 1843
19. Genus Cirrosiphon P.Duvigneaud & J.J. Symoens, 1951
20. Genus Clavitrichoides Mikhailova, 1989 †
21. Genus Cyanonema J.W.Schopf, 1968 †
22. Genus Cyanotrichospira Molinari & Guiry, 2021
23. Genus Dodgunia Lopuchin, 1983 †
24. Genus Filiconstrictosus J.W.Schopf & Blacic, 1971 †
25. Genus Flagellis E.A.Assejeva, 1982 †
26. Genus Gunflintia Barghoorn, 1965 †
27. Genus Halythrix J.W.Schopf, 1968 †
28. Genus Havrella G.Breton & P.Saulot, 1986
29. Genus Heliconema J.W.Schopf, 1968 †
30. Genus Hypheothrix (M.Gomont) O.Kirchner, 1898
31. Genus Koinonema B.Buch, M.D.Martins & L.H.Z.Branco, 2017
32. Genus Laspinema F.Heidari & T.Hauer, 2018
33. Genus Megathrix L.M.Yin, 1987 †
34. Genus Neophormidium P.K.Misra & P.K.Maithy, 1984
35. Genus Omalophyma Golub, 1979 †
36. Genus Oscillatoria Vaucher ex Gomont, 1892
37. Genus Oscillatoriites Zalessky, 1926 †
38. Genus Oscillatoriopsis J.W.Schopf, 1968 †
39. Genus Oscillatorites †
40. Genus Oxynema Chatchawan, Komárek, Strunecky, Smarda & Peerapornpisal, 2012
41. Genus Palaeofistula Molinari, Mayta & Guiry, 2021 †
42. Genus Palaeolyngbya J.W.Schopf, 1968 †
43. Genus Palaeoscytonema Edhorn, 1973 †
44. Genus Palaeoscytonema Maithy & M.Shukla, 1977
45. Genus Palaeospirulina Edhorn, 1973 †
46. Genus Partitiofilum J.W.Schopf & Blacic, 1971 †
47. Genus Pelagothrix J.Schmidt, 1901
48. Genus Perforafilum Zimba, Shalygin & I.-S.Huang, 2020
49. Genus Phormidium Kützing ex Gomont, 1892
50. Genus Planktothricoides Suda & Watanabe, 2002
51. Genus Pomoria Siverzeva & Jankauskas, 1989 †
52. Genus Rectia Jankauskas, 1989 †
53. Genus Salome A.H.Knoll, 1982 †
54. Genus Siphoderma Kützing, 1843
55. Genus Siphonophycus J.W.Schopf, 1968 †
56. Genus Skujaella J.de Toni, 1938
57. Genus Sodalinema Cellamare, Duval, Touibi, Djediat & C.Bernard, 2018
58. Genus Symphyothrix Kützing, 1843
59. Genus Tortunema T.N.Hermann, 1976 †
60. Genus Actinothorax J.E.Gray, 1864 accepted as Actinothrix J.E.Gray, 1864
61. Genus Angulocellularia A.G.Vologdin, 1962 accepted as Angusticellularia Vologdin, 1962 †
62. Genus Calonema J.E.Gray, 1964 accepted as Plectonema Thuret ex Gomont, 1892
63. Genus Filarszkya Forti, 1907
64. Genus Fistularia M.S.Yakschin, 1981 † accepted as Palaeofistula Molinari, Mayta & Guiry, 2021 †
65. Genus Glaucothrix Kirchner, 1878 accepted as Plectonema Thuret ex Gomont, 1892
66. Genus Moorea Engene, Rottacker, Kastovsky, Byrum, Choi, Ellisman, Komárek & Gerwick, 2012 accepted as Moorena Engene & Tronholm, 2019
67. Genus Oscillatoriella Gaillon, 1833 accepted as Oscillatoria Vaucher ex Gomont, 1892
68. Genus Schizodictyon Kützing, 1843 accepted as Symplocastrum (Gomont) Kirchner, 1898
69. Genus Trichophorus Palisot de Beauvois, 1809 accepted as Oscillatoria Vaucher ex Gomont, 1892
70. Genus Trichospira E.M.McNeill, 1948 accepted as Cyanotrichospira Molinari & Guiry, 2021
71. Genus Xanthotrichum N.Wille ex O.Kirchner, 1898 accepted as Trichodesmium Ehrenberg ex Gomont, 1892
72. Genus Anabaeniolum G.A.Nadson & N.A.Krassilnikov, 1928 (uncertain)
73. Genus Contortonema Schopf & Blacic, 1971 (uncertain)
74. Genus Contortothrix Schopf, 1968 † (uncertain)
75. Genus Elisa S.F.Gray, 1821 (uncertain)
76. Genus Ernstiella R.Chodat, 1911 (uncertain > nomen dubium)
77. Genus Oligoclonium A.B.Klugh, 1921 (uncertain)
78. Genus Oscillaria Engler, 1892 (uncertain > nomen dubium, nom. inval.)
79. Genus Spirulinopsis Bharadwaya, 1963 (uncertain > nomen dubium)
80. Genus Vaginaria S.F.Gray ex Kuntze, 1898 (uncertain)

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