| Order | Canuelloida Khodami, MacArthur, Blanco-Bercial & Arbizu, 2017
| 0 0 0 | Families Genera Species |
| Order | Cyclopoida Rafinesque, 1815 Cyclopoid copepods | 108 1033 7706 | Families Genera Species |
| Order | Gelyelloida Huys, 1988
| 1 1 2 | Family Genus Species |
| Order | Harpacticoida G.O. Sars, 1903 Harpacticoid copepods | 77 1008 8898 | Families Genera Species |
| Order | Misophrioida Gurney, 1927
| 3 19 43 | Families Genera Species |
| Order | Monstrilloida G. O. Sars, 1901
| 1 15 340 | Family Genera Species |
| Order | Mormonilloida Boxshall, 1979
| 1 2 7 | Family Genera Species |
| Order | Poecilostomatoida Thorell, 1859
| 11 19 34 | Families Genera Species |
| Order | Siphonostomatoida Thorell, 1859
| 54 604 4152 | Families Genera Species |