[Phylum] Chordata Bateson, 1885 - chordates Subphylum Craniata auct. Infraphylum Vertebrata Lamarck, 1801 - vertebrates Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates Class †Placodermi McCoy, 1848 †Antiarchi Cope, 1885 - antiarchs Family †Liujiangolepidae Wang, 1987, incertae sedis 1 Genus †Liujiangolepis Wang Shitao, 1987