The earliest example of a dinobird is a troodont, "Anchiornis huxlei", from the Upper Jurassic. This specimen pre-dates "Archaeopteryx" by 5–10 million years, and predates any other feathered dinosaur from its location (Liaoning Province, China) by 25–35 million years. This species had long feathers on its hind limbs as well as fore limbs, and could glide, but probably not fly.