Mononychus was a unknown. It lived in the Unknown period and inhabited Asia, North America and Europe. Its fossils have been found in places such as Ömnögovi (Mongolia).

All the Mononychus illustrations below were collected from the internet. Enjoy and explore:

Mononychus was described by the following scientific paper(s):
  • A. Perle, M. A. Norell, and L. M. Chiappe, J. M. Clark. 1993. Flightless bird from the Cretaceous of Mongolia. Nature 362:623-626