Kingdom Animalia Linnaeus, 1758 - animals
Phylum Arthropoda Siebold, 1848 - arthropods
Superclass Crustacea Pennant, 1777 - crustaceans
see [unranked] Crustaceomorpha Chernyshev, 1960
Class Ostracoda Latreille, 1802 - ostracods
Order Palaeocopida Henningsmoen, 1953
see Suborder Palaeocopina Henningsmoen, 1953
Genus †Beyrichia McCoy, 1846
Genus †Ceratopsis Ulrich, 1894
Genus †Treposella Ulrich & Bassler, 1908
Genus †Tvaerenella Jaanusson, 1957