Abundant conodonts were found in the Changxing Formation of the upper Permian at well Sha-1 in Shazhou legion

Jiangsu Province. These conodont fossils they be divided into 2 assemblage zones: 1.Neogondolella subcarinata subcarinata- Neog. subcarinata elongata represente the lower part of the Changxing Formation

and it may be contrasted with Gondolella subcarinata named by H. Kozour in 1978

and Anchignathodus typicalis found by Clark in 1977. 2.Neogondolella subcarinata chongxingensis-Neog. carinata represent the upper part of the Chengxing Formation. The fauna has relatively particular features and local specialities. It may be the youngest stratum of the Permianin the world.