Summary:
- The discovery of tiny fossil teeth belonging to an ancient primate called Purgatorius provides new insights into the early evolution of primates.
- Purgatorius was a small, squirrel-like creature that lived around 66 million years ago, shortly after the extinction of the dinosaurs.
- These fossil teeth suggest that Purgatorius and other early primates may have evolved from a group of mammals called plesiadapiforms, rather than directly from more primitive mammals, deepening the debate about primate evolution.