sedimentary strata, comprising purple-red medium-thick layered sandstone-massive mudstoneare primarily distributed in mudstone and sandstone, with ten outcrops of dinosaur footprint fossils . The exposed area of No.1 is nearly 600m2layers. Among them, there are 16 sets of 183 footprints on the middle fine-grained sandstone in the intervening sand and mudstone layers; No.2 site reveals 80m2 of area, 9 groups of 61 footprints, , produced 3 groups of 18 , producing namely brontosaurus, pterosaur, aquatic bird, Kalier and many unnamed theropod dinosaurs. The record. The sauropod footprint (Brontosaurus footprint) is between 25 and 90cm wide and is the indicative of the social behavior of dinosaurs. A sauropod footprint that is running fast is discovered