Acantholaimus Allgén, 1933 (basis of record)
Acanthopharynx Marion, 1870 (basis of record)
Actinonema Cobb, 1920 (basis of record)
Adoncholaiminae Gerlach & Riemann, 1974 (basis of record)
Adoncholaimus Filipjev, 1918 (basis of record)
Aegialoalaimidae Lorenzen, 1981 (basis of record)
Aegialoalaimus de Man, 1907 (basis of record)
Alaimella Cobb, 1920 (basis of record)
Alaimidae Micoletzky, 1922 (basis of record)
Amphidelus Thorne, 1939 (basis of record)
Amphimonhystera Allgén, 1929 (basis of record)
Anoplostoma Bütschli, 1874 (basis of record)
Anoplostomatidae Gerlach & Riemann, 1974 (basis of record)
Anoplostomatinae (basis of record)
Antarcticonema Timm, 1978 (basis of record)
Anticoma Bastian, 1865 (basis of record)
Anticomidae Filipjev, 1918 (basis of record)
Anticomopsis Micoletzky & Kreis, 1930 (basis of record)
Anticyathus Cobb, 1920 (basis of record)
Antopus Cobb, 1933 (basis of record)
Aponema Jensen, 1978 (basis of record)
Araeolaimus de Man, 1888 (basis of record)
Archepsilonema Steiner, 1927 (basis of record)
Astomonema Ott, Rieger, Rieger & Enderes, 1982 (basis of record)
Atrochromadora Wieser, 1959 (basis of record)
Austronema Cobb, 1914 (basis of record)
Axonolaimidae Filipjev, 1918 (basis of record)
Axonolaimoidea Filipjev, 1918 (basis of record)
Axonolaimus de Man, 1889 (basis of record)
Bathyepsilonema Steiner, 1927 (basis of record)
Calyptronema Marion, 1870 (basis of record)
Camacolaiminae Micoletzky, 1924 (basis of record)
Camacolaimus de Man, 1889 accepted as Deontolaimus de Man, 1880 (basis of record)
Ceramonematidae Cobb, 1933 (basis of record)
Cheironchus Cobb, 1917 (basis of record)
Chromadora Bastian, 1865 (basis of record)
Chromadorella Filipjev, 1918 (basis of record)
Chromadoria (basis of record)
Chromadorida (basis of record)
Chromadoridae Filipjev, 1917 (basis of record)
Chromadorina (basis of record)
Chromadorinae Filipjev, 1917 (basis of record)
Chromadorita Filipjev, 1922 (basis of record)
Chromadoroidea Filipjev, 1917 (basis of record)
Comesoma Bastian, 1865 (basis of record)
Comesomatidae Filipjev, 1918 (basis of record)
Comesomatinae Filipjev, 1918 (basis of record)
Crenopharynginae Platonova, 1976 (basis of record)
Cyatholaimidae Filipjev, 1918 (basis of record)
Cyatholaiminae Filipjev, 1918 (basis of record)
Cyatholaimus Bastian, 1865 (basis of record)
Daptonema Cobb, 1920 (basis of record)
Deontolaimus de Man, 1880 (basis of record)
Deontostoma Filipjev, 1916 (basis of record)
Desmodora de Man, 1889 (basis of record)
Desmodoridae Filipjev, 1922 (basis of record)
Desmodorinae Filipjev, 1922 (basis of record)
Desmodoroidea Filipjev, 1922 (basis of record)
Desmolaiminae Schneider, 1926 (basis of record)
Desmoscolecidae Shipley, 1896 (basis of record)
Desmoscolecina (basis of record)
Desmoscolecinae (basis of record)
Desmoscolecoidea Shipley, 1896 (basis of record)
Desmoscolex Claparède, 1863 (basis of record)
Dichromadora Kreis, 1929 (basis of record)
Diplopeltidae Filipjev, 1918 (basis of record)
Diplopeltinae Filipjev, 1918 (basis of record)
Diplopeltis Cobb, 1905 (basis of record)
Dorylaimida (basis of record)
Dracognomus Allen & Noffsinger, 1978 (basis of record)
Draconema Cobb, 1913 (basis of record)
Draconematidae Filipjev, 1918 (basis of record)
Draconematinae (basis of record)
Eleutherolaiminae Filipjev, 1922 (basis of record)
Eleutherolaimus Filipjev, 1922 (basis of record)
Elzalia Gerlach, 1957 (basis of record)
Enchelidiidae Filipjev, 1918 (basis of record)
Enoplia (basis of record)
Enoplida (basis of record)
Enoplidae Dujardin, 1845 (basis of record)
Enoplina (basis of record)
Enoploidea Dujardin, 1845 (basis of record)
Enoploides Ssaweljev, 1912 (basis of record)
Enoplolaiminae De Coninck, 1965 (basis of record)
Enoplolaimus de Man, 1893 (basis of record)
Enoplus Dujardin, 1845 (basis of record)
Epacanthion Wieser, 1953 (basis of record)
Epsilonema Steiner, 1927 (basis of record)
Epsilonematidae Steiner, 1927 (basis of record)
Epsilonematinae Steiner, 1927 (basis of record)
Eubostrichus Greeff, 1869 (basis of record)
Euchromadora de Man, 1886 (basis of record)
Euchromadorinae Gerlach & Riemann, 1973 (basis of record)
Eumorpholaimus Schulz, 1932 accepted as Eleutherolaimus Filipjev, 1922 (basis of record)
Eurystomina Filipjev, 1921 (basis of record)
Filipjeva Ditlevsen, 1928 (basis of record)
Grahamius Gerlach & Riemann, 1973 (basis of record)
Graphonema Cobb, 1898 (basis of record)
Greeffiella Cobb, 1922 (basis of record)
Greeffiellini Filipjev, 1929 (basis of record)