原始恐龙
原始恐龙-
四周所看到的岩石大多是侏罗纪时代的，因此这里就是原始恐龙的国度。
All the rocks you can see around here are mostly of Jurassic age , so this is prime dinosaur country .
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实际上没有角而仅有皱褶初形的原始恐龙；后肢长，前肢短；可能曾是两足动物。
Primitive dinosaur actually lacking horns and having only the beginning of a frill ; long hind and short front limbs ; may have been bipedal .
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吉林省中部早白垩世泉头组-原始鸟脚类恐龙
A primitive ornithopod from the early Cretaceous Quantou Formation of central jilin , China