Nqwebasaurus was the earliest-known “bird-mimic” dinosaur. Scientists believed it was a meat eater until they found stones in the stomach area. Some plant eaters swallowed stones to grind up tough plant material. Nqwebasaurus may have been an omnivore, eating both plants and prey.
South Africa

3 to 4 feet

Possibly prey and plants

145 million years ago

Art by: Robert Squier