| Family | Ascouracaridae Gaud & Atyeo, 1976
| 8 23 | Genera Species |
| Family | Caudiferidae Gaud & Atyeo, 1978
| 3 4 | Genera Species |
| Family | Cheylabididae Gaud, 1983
| 3 7 | Genera Species |
| Family | Crypturoptidae Gaud, Atyeo & Berla, 1973
| 9 10 | Genera Species |
| Family | Eustathiidae Oudemans, 1905
| 17 62 | Genera Species |
| Family | Falculiferidae Oudemans, 1905
| 20 50 | Genera Species |
| Family | Freyanidae Dubinin, 1953
| 19 76 | Genera Species |
| Family | Gabuciniidae Gaud & Atyeo, 1975
| 18 71 | Genera Species |
| Family | Kiwilichidae Dabert, 1994
| 1 2 | Genus Species |
| Family | Kramerellidae Gaud & Mouchet, 1961
| 12 48 | Genera Species |
| Family | Ochrolichidae Gaud & Atyeo, 1978
| 3 4 | Genera Species |
| Family | Oconnoriidae J. Gaud, W. T. Atyeo & J. S. H. Klompen, 1989
| 1 1 | Genus Species |
| Family | Pterolichidae Trouessart, 1899
| 134 535 | Genera Species |
| Family | Ptiloxenidae Gaud, 1982
| 4 22 | Genera Species |
| Family | Rectijanuidae Gaud, 1961
| 2 3 | Genera Species |
| Family | Syringobiidae Trouessart, 1897
| 27 106 | Genera Species |
| Family | Thoracosathesidae Gaud & Mouchet, 1959
| 1 2 | Genus Species |
| Family | Vexillariidae Gaud & Mouchet, 1959
| 13 20 | Genera Species |