==Genera== ===Belgiosteus=== A genus of very large coccosteids. Species are found in Middle Devonian Belgium and China. ===Clarkosteus=== ===Coccosteus=== The type genus of the family. Numerous species are found in Middle to Upper Devonian strata throughout Europe and parts of North America. ===Dickosteus=== ===Jiuchengia=== The earliest known coc...