史前恐龙种类很多,统治世界长达1亿多年。但恐龙群并非同生同息,有出现在三叠纪的,有生存于侏罗纪的,也有生长在白垩纪的。因此,若是我们穿越时空去追寻恐龙的遗迹,除了恐龙化石提供科学依据之外,还需以想象来描摹它们的原型。此方来宾水冲石,形状狭长,轮 There are many prehistoric dinosaurs that dominate the world for more than 100 million years. However, the dinosaur group is not born with the same interest, there are in the Triassic, there lived in the Jurassic, also grew in the Cretaceous. Therefore, if we traverse the time and space to trace the remains of dinosaurs, in addition to dinosaur fossils to provide a scientific basis, they also need to imagine their description of the prototype. This party guest rushed water stone, long and narrow shape, round