A lot of conodonts are found in Upper Qinglong Formation of LowerTriassic in Dalishan section.They consist of 15 genera and 34 species

and can be divided into two conodont assem blage zones:1.Neospathodus triangularis-N

collisoni A.Z.2.N.homeri-N.anhuinensis A.Z.These correspond to late stage of Olenekian in age

and developed inshallow shelf environment.