Abstract: The present paper deals in detail with the silicified brachiopod fossils from the base of the Mintang Formation (Middle Devonian) in Liujing,Guangxi.Thirty-one genera and species,including one new genus,one new subgenus and twenty new species are described, resulting in the establishment of two faunas Geranocephalus-Pentamerella (lower) and Stringocephalus-Changtanella (upper).In particular,the studies of the characteristics and geological ages of the fauna Geranocephalus-Pentamerella indicate that the fauna is likely to be late Eifelian in age,and thus may be ascribed to a part of the Old World Province.It also has a close affinity to the coeval faunas in Nevada,U.S.A.,or displays the striking similarities to those from Europe (e.g.Germany,Czech and Ural).The author argued, however,that it is indeed a new fauna.The fauna Geranocephalus should not be an interme-diate type between Subrenssellandia and Stingocephalus but the one between Renssellandia and Stingocephalus;probably it should be the precursor of Stingocephalus,and represents an important stage in the transition from Renssellandia to Stingocephalus.