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1985年,自贡恐龙博物馆的朱时达、高人彦、彭光照根据四川威远县荣胜乡沙坝村村民李元吉、李鸣章的报告和地矿部第二地质大队提供的资料,在威远县荣胜乡老鸦坡下侏罗统珍珠冲组下部黄色砂岩上发掘出6个连续恐龙足迹化石,并把这批标本运回自贡恐龙博物馆保存。
In 1985, Zhu Shida, Gao Renyan and Peng Guangzhao from the Dinosaur Museum in Zigong County, based on the reports provided by Li Yuanji and Li Mingzhang villagers in Shaba Village, Rongsheng Township, Weiyuan County, Sichuan Province, and the second Geological Brigade, Ministry of Geology and Mineral Resources, Six contiguous dinosaur trail fossils have been excavated on the yellow sandstone below the Lower Jurassic Pearl Chongla Formation in Laoguopo and transported back to the Zigong Dinosaur Museum for preservation.