Chelicerata Heymons, 1901 †Trigonotarbida Petrunkevitch, 1949 Family †Anthracomartidae Haase, 1890 1 Genus †Anthracomartus Karsch, 1882 2 Genus †Brachypyge Woodward, 1878 3 Genus †Maiocercus Pocock, 1911