Cytherellidae
Cytherellidae is the only living family of the ostracod order Platycopida. Eyes are absent. It contains 11 genera:
- †Abursus Loranger, 1954
- †Alveus Hamilton, 1942
- †Ankumia Veen, 1932
- Cytherella Jones, 1849
- Cytherelloidea Alexander, 1929
- †Geelongella McKenzie, Reyment & Reyment, 1991
- Grammcythella Swanson et al., 2005
- Inversacytherella Swanson et al., 2005
- Keijcyoidea Malz, 1981
- Platella Coryell & Fields, 1937
- †Staringia Veen, 1936