无论卷曲藻属于何种类型，它是在5.5亿年前出现的化石记录大爆炸之前已知仅有的几类复杂生命体的案例。
Whatever Grypania was, it was one of the few known examples of complex life until about 550 million years ago, when the fossil record explodes in diversity.
无论卷曲藻属于何种类型，它是在5.5亿年前出现的化石记录大爆炸之前已知仅有的几类复杂生命体的案例。
Whatever Grypania was, it was one of the few known examples of complex life until about 550 million years ago, when the fossil record explodes in diversity.
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