距今约二亿年前,即地质历史时期的中生代晚三叠纪,美丽富饶的四川。气候温暖潮湿,淡水湖泊星罗棋布,四季如春。大量羊齿植物林覆盖着湿润的土地,水草十分繁茂,正是当时生物世界的霸主恐龙生息的乐园。在那干湿适度的沼泽地上不时留下了这些为生存而奔波的恐龙足迹。两亿年过去了, About 200 million years ago, that is, Mesozoic and Late Triassic in the geological history, beautiful and rich in Sichuan. Warm and humid climate, freshwater lakes dotted, all seasons such as spring. A large number of fern plantations covered with moist land, water plants are very lush, it was the creature of the dominant dinosaur paradise. From time to time in those wet and dry swamps left these dinosaur footprints to survive. Two hundred million years have passed,