Get the best answers to your questions with the help of IDNLearn.com's experts. Our Q&A platform offers reliable and thorough answers to ensure you have the information you need to succeed in any situation.
Answer:
The earliest identifiable fossils consist of stromatolites, which are microbial mats formed in shallow water by cyanobacteria. The earliest stromatolites are found in 3.48 billion-year-old sandstone discovered in Western Australia. Stromatolites are found throughout the Archean and become common late in the Archean.