剑龙化石

全称为“带壳蜥蜴”的剑龙（Stegosaurus Stenops），是一种生活在北美和欧洲的晚侏罗纪时期的大型食草恐龙。它的尖刺很可能是用于防御，而背部板甲则用于展示自我，可能还有助于调节体温，以及辨认同类，有点像身份证一样。 剑龙身长7米（23英尺），曾与异特龙、雷龙、角鼻龙、阿帕托龙、板龙和卡马拉龙等其他恐龙共同生活在同一时期

Full name, Stegosaurus Stenops, meaning "roofed lizard" was a large herbivore dinosaur from the Late Jurassic Period in North America and Europe. The spikes were most likely used for defense, while the plates were for display and possibly for thermo-regulation and also recognizing their own kind, sort of like an ID. Stegosaurus was seven meters (23 ft) long and coexisted with other dinosaurs such as Allosaurus, Torvosaurus, Ceratosaurus, Apatosaurus, Diplodocus and Camarasaurus.