最近发现的一个翼龙标本覆盖着长、密、相对厚的毛发状化石材料，这是第一个明确的证据，证明他的推理是正确的。
The recent discovery of a pterosaur specimen covered in long, dense, and relatively thick hairlike fossil material was the first clear evidence that his reasoning was correct.
根据有限的化石材料很难勾勒出远古艺术的面貌。
It's very difficult to sketch the whole picture of prehistoric art just according to very limited fossil materials.
东北地区出土的旧石器时代人类化石、文化遗物和动物化石材料十分丰富。
The material of human fossil, culture relic and zoolite in the Old Stone Age, which are excavated in the Northeast of China, are very abundant.
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