名词
中文翻译：马家沟组
同义词：
['Majiagou Formation', 'Majiagou Membership例句：1. The Lower Majiagou Formation is a significant paleontological site in China.（马家沟组是中国重要的古生物学遗址。）']
例句：
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1. The Lower Majiagou Formation is a significant paleontological site in China.
马家沟组是中国重要的古生物学遗址。
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2.The study of the Lower Majiagou Formation has revealed many new species.
对马家沟组的研究揭示了许多新物种。
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3. The Lower Majiagou Formation contains fossils that are over 50 million years old.
马家沟组包含的化石距今超过5000万年。