Barbulanympha L.R. Cleveland, S.R. Hall, E.P. Sanders & J. Collier, 1934 (verified source for family)
Barbulanymphidae Boscaro & Keeling in Boscaro et al., 2024 (original description)
Brugerollina Taerum & Gile in Noda, Kitade, Jasso-Selles, Taerum, Takayanagi, Radek, Lo, Ohkuma & Gile, 2023 (verified source for family)
Brugerollinidae Boscaro & Keeling in Boscaro et al., 2024 (original description)
Calonymphida (original description)
Calonymphidae Grassi, 1911 (taxonomy source)
Cononympha Oshima, 1917 (verified source for family)
Cononympha Oshima, 1917 (current name source)
Cononymphida (original description)
Cononymphidae Boscaro & Keeling in Boscaro et al., 2024 (original description)
Cristamonadea (basis of record)
Cthulhu James & Keeling, 2012 (verified source for family)
Cthulhuidae Boscaro & Keeling in Boscaro et al., 2024 (original description)
Cthylla James & Keeling, 2012 (verified source for family)
Cuppa Taerum & Gile in Taerum et al., 2020 (verified source for family)
Cyclojoenia F. Nurse, 1945 (taxonomy source)
Deltotrichonymphidae Brugerolle & Lee, 2000 (taxonomy source)
Deltotrichonymphidae Brugerolle & Lee, 2000 (basis of record)
Devescovinida (original description)
Devescovinidae Doflein, 1911 (taxonomy source)
Dientamoebidae Grassé, 1953 (taxonomy source)
Fraterculidae Boscaro & Keeling in Boscaro et al., 2024 (original description)
Fraterculus Taerum & Gile in Taerum et al., 2020 (verified source for family)
Gigantomonadida (original description)
Gigantomonas Dogiel, 1916 (verified source for family)
Holomastigotoidida (original description)
Holomastigotoididae Grassi & Foà, 1911 (taxonomy source)
Honigbergiellida (basis of record)
Honigbergiellidae Čepička et al., 2010 (taxonomy source)
Hypotrichomonadea (basis of record)
Hypotrichomonadida (basis of record)
Hypotrichomonadidae Honigberg, 1963 (taxonomy source)
Joenia B. Grassi, 1885 (taxonomy source)
Joenina Grassi, 1920 (taxonomy source)
Joenoides Grassé, 1952 (taxonomy source)
Joenopsis D.W. Cutler, 1920 (taxonomy source)
Kofoidia Light, 1927 (verified source for family)
Kofoidiidae accepted as Devescovinidae Doflein, 1911 (source of synonymy)
Lophomonadea (original description)
Lophomonadida (taxonomy source)
Microjoenia Grassi, 1892 (verified source for family)
Micromastigotes A. Hollande & J. Carruette-Valentin, 1971 (verified source for family)
Mixotricha J.L. Sutherland, 1933 (verified source for family)
Mixotrichidae Boscaro & Keeling in Boscaro et al., 2024 (original description)
Monocercomonadidae Kirby, 1944 (taxonomy source)
Nanospironympha Noda & Kitade in Noda, Kitade, Jasso-Selles, Taerum, Takayanagi, Radek, Lo, Ohkuma & Gile, 2023 (verified source for family)
Nyarlathotep Boscaro & Keeling in Boscaro et al., 2024 (original description)
Pachyjoenia Brugerolle & Bordereau, 2005 (taxonomy source)
Parahistomonas Honigberg & Kuldova, 1969 (current name source)
Parajoenopsis Saleem, 1955 (taxonomy source)
Pimpavickea (original description)
Pimpavickida (taxonomy source)
Placojoenia Radek & Hausmann, 1994 (taxonomy source)
Projoenia Lavette, 1970 (taxonomy source)
Pseudospironympha Noda & Kitade in Noda, Kitade, Jasso-Selles, Taerum, Takayanagi, Radek, Lo, Ohkuma & Gile, 2023 (verified source for family)
Rhynchonympha L.R. Cleveland, S.R. Hall, E.P. Sanders & J. Collier, 1934 (verified source for family)
Simplicimonadea (original description)
Simplicimonadida (original description)
Spironympha Oshima, 1917 (verified source for family)
Spirotrichonympha Grassi, 1926 (verified source for family)
Spirotrichonymphea (basis of record)
Spirotrichonymphida (taxonomy source)
Tetratrichomastigidae Boscaro & Keeling in Boscaro et al., 2024 (original description)
Torquenympha V.E. Brown, 1930 (current name source)
Torquenympha V.E. Brown, 1930 (verified source for family)
Trichomonoides Brugerolle & Bordereau, 2004 (basis of record)
Tritrichomonadea (basis of record)
Tritrichomonadida (basis of record)
Tritrichomonadidae Honigberg, 1963 (taxonomy source)
Urinympha Cleveland, Hall, Sanders & Collier, 1934 (verified source for family)