岩性为灰-深灰色页岩、粉砂质页岩夹长石石英砂岩、石英砂岩、粉砂岩及凸镜状灰岩。产菊石:loceras cf. polyocum,Kinkeliniceras catillus,Peltoceratoides semirugosum,Macrocephalites(Pleurocephalites)sp.,Reineckeia sp.,Prososphinctoides cf. manialensis,Alligaticeras cf. alligatus,Pterolytoceras cf. exticum等;双壳类:Entolium proeteus等。下与拉佣组整合;上与多尼组平行不整合。...