Abstract: This paper introduces a large quantity of solitary rugose corals and a small quantity of brachiopods collected from the strata assigned originally to the Fanxia Mumber of the late Late Devonian Xikuangshan Formation at the secti- on of Wusheshan,Yougxin County,Jiangxi.It has been confirmed that there exists the early F arly Carboniferous Ceriphyllum elegantum assemblage zone. Besides,Cystophrentis,brachiopods and fossil plants were discovered in Shang- shuling,Pingxaing.This indicates that the Mengkongao Formation is laso not absent.Therefore,the contact between the Devonian and the Carboniferous should be conformable in western Jiangxi and the Liugiang movement did not- exist.The age of the Ningxiang-type iron deposit occurring in the Fanxia Formation should be early Early Carboniferous.Its stratigraphichorizon rjses gradually from west to east.