microbiofacies

例句：

1. 1. The microbiofacies in the fossilized tree trunk contains traces of ancient life.
   化石树桩中的微古生物学地层含有古代生命的踪迹。
2. 2.The study of microbiofacies helps us understand the evolution of life on Earth.
   研究微古生物学地层有助于我们理解地球上生命的起源。
3. 3. The microbiofacies analysis revealed that the earliest bacteria existed before the formation of the first cells.
   微古生物学地层分析显示，最早的细菌在形成第一批细胞之前就已经存在了。