oldest fossil

The newly discovered fossil is 3.77 billion years old.

Researchers in Scotland have unveiled the skeleton of a 164-million-year-old fossil known as the Storr Lochs Monster which is an ancient marine reptile believed to have existed at the same time as the dinosaurs.

Scientists have long wondered when life began on Earth. The oldest fossil evidence had previously been dated to around 3.5 billion years, but a more recent discovery could set that timeline back by another 220 million years.