恐龙虽已从地球上消失,但在地层里留下了大量的化石。这些化石是珍贵的“历史档案”,是我们探索恐龙奥秘最重要的资料。恐龙化石的种类很多,有骨骼化石、牙齿化石、皮肤化石、木乃伊化石、脚印化石、蛋化石、粪化石、胃石、窝巢的遗迹、尾巴在地上的拖迹、胃中残余食物的化石等。 Although the dinosaurs have disappeared from the earth, but left a lot of fossils in the formation. These fossils are precious “historical archives” and the most important data for us to explore the mysteries of dinosaurs. There are many types of dinosaur fossils, such as fossil bones, dental fossils, skin fossils, mummified fossils, footprints fossils, egg fossils, fecal fossils, gastroliths, remains of nest nests, tail dragging on the ground, fossils of residual food in the stomach, .