Question: In what era can the oldest fossils be found?
The oldest fossils can be found in the Precambrian era, which spanned from about 4.6 billion years ago to 541 million years ago. This era is characterized by the formation of the Earth and the emergence of early life forms, such as cyanobacteria and stromatolites. The fossil record from this era is sparse and often difficult to interpret due to the lack of hard body parts and the effects of geological processes on the preservation of fossils.
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