Fossils locked away for 1.75 billion years hold clues about key moment in Earth's history
When you purchase through contact on our internet site , we may bring in an affiliate committal . Here ’s how it works . The early direct evidence ofphotosynthesishas been get a line in fossils date stamp back to 1.75 billion years ago . Scientists pull in fossils from Australia , Canada and the Democratic Republic of Congo and found the sample distribution from Australia and Canada contained grounds of cyanobacteria , the oldest know lifeform on Earth ....