Phylum Schizoramia Bergström, 1976a see Phylum Arthropoda Siebold, 1848 Superclass Crustaceomorpha Chernyshev, 1960 see [unranked] Crustaceomorpha Chernyshev, 1960 Class †Pseudocrustacea Størmer, 1944 Genus †Combinivalvula Hou, 1987 1 †Combinivalvula chengjiangensis Hou, 1987c