| Family | Acartiidae Sars, 1903
| 12 167 | Genera Species |
| Family | Arietellidae Sars, 1902
| 17 80 | Genera Species |
| Family | Augaptilidae G. O. Sars, 1905
| 13 238 | Genera Species |
| Family | Bathypontiidae Brodsky, 1950
| 6 38 | Genera Species |
| Family | Candaciidae Giesbrecht, 1893
| 5 89 | Genera Species |
| Family | Centropagidae Giesbrecht, 1893
| 30 278 | Genera Species |
| Family | Diaptomidae Baird, 1850
| 90 1335 | Genera Species |
| Family | Discoidae Gordejeva, 1975
| 4 38 | Genera Species |
| Family | Epacteriscidae Fosshagen, 1973
| 21 33 | Genera Species |
| Family | Heterorhabdidae Sars, 1902
| 12 112 | Genera Species |
| Family | Lucicutiidae Sars, 1902
| 2 58 | Genera Species |
| Family | Parapontellidae Giesbrecht, 1893
| 1 1 | Genus Species |
| Family | Phyllopidae Campaner, 1977 ⇒ Nullosetigeridae
| 1 9 | Genus Species |
| Family | Pontellidae Dana, 1852
| 27 336 | Genera Species |
| Family | Pseudocyclopidae Giesbrecht, 1893
| 4 52 | Genera Species |
| Family | Pseudodiaptomidae Sars, 1902
| 11 133 | Genera Species |
| Family | Ridgewayiidae Wilson, 1958
| 13 40 | Genera Species |
| Family | Temoridae Giesbrecht, 1893
| 10 91 | Genera Species |
| Family | Tortanidae Sars, 1902
| 7 73 | Genera Species |