名词
中文翻译：上第三纪
同义词：
['upper third', 'upper division', 'upper stratum']
例句：
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1. The fossils found in the upper Tertiary layer are significant for studying the evolution of life on Earth.
在上第三纪层中发现的化石对于研究地球上生命演化具有重要意义。
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2. The upper Tertiary period was characterized by a significant increase in plant and animal diversity.
上第三纪时期，植物和动物多样性显著增加。
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3. The upper Tertiary deposits contain valuable resources such as oil and natural gas.
上第三纪沉积物富含石油和天然气等宝贵资源。