The later period of Early Permian-Later Permian strata in the central-western Jiangxi Province, China

This paper gives the multiple stratigraphic subdivision to the later period of Early Permian-Late Permian strata in the central-western Jiangxi. From lower to upper, it is classified Jigongling Formation, Qixia Formation, Xiaojiangbian Formation, Maokou Formation, Nangang Formation, Leping Formation, Qibaoshan Formation, and Changxing Formation. From bottom to top, there are 11 fusulina zones including Schwagerina cushmani-Darvasites, Staffella, Misellina claudiae, Gallwoayinella, Parafusulina, Chusenella, Neoschwagerina, Yabeina, Neomisellina, Gallwoayinella, Palaeofusulina minima, P. sinensis and 7 conodont zones including Sweetognathus whitei in Jigongling Formation, Jinogondolella serrata in Maokou Formation, Clarkina leveni, C. guanyuanensis and C. oriantalis in Qibaoshan Formation, and C. subcarinata, C. changxingnensis in Changxing Formation. It was also made subdivision of five ammonoid zones including Shouchangoceras、Anderssonoceras、Prototoceras、Konglingites, Sanyanites。According to the biostratigraphic units, this strata can be divided into Lower Longlinian, Middle Luodianian, Xiangboian, Gufengian and Lengwuian, Upper Wujiapingian and Changxingian。