†family Cytherideidae Sars 1925 (ostracod)
Parent taxon: Cytheroidea according to S. Crasquin 2008
Sister taxa: Berounellidae, Bythocytheridae, Cytherissinellidae, Limnocytheridae, Tricornidae, Paracytherideidae, Protocytheridae, Cytheridae, Eucytheridae, Neocytherideidae, Trachyleberididae, Hemicytheridae, Loxoconchidae, Cytheruridae, Xestoleberididae, Glorianellidae
Subtaxa: Basslerella, Cytherideinae, Pirileberis, Pseudorayella
Ecology: epifaunal detritivore-grazer