Researchers have uncovered a brand-new prehistoric species of lizard-like reptile that descended from the ancestors of the living tuatara in New Zealand.
The new species, Opisthiamimus gregori, was named after the fossil, which was found at a location in Wyoming's Morrison Formation.
Around 150 million years ago, this newfound species coexisted with dinosaurs in Jurassic North America.
The reptile would have measured around 6 inches from nose to tail and fit comfortably in the palm of a person.
It most likely relied on a diet of insects and other invertebrates.
Scientists from the Natural History Museum, University College London, and National Museum of Natural History discovered this discovery together.
The fossil is currently part of a museum collection, where it will stay for future research.