Palaeoctonus was a unknown. It lived in the Triassic period and inhabited . Its fossils have been found in places such as Pennsylvania (United States) and Texas (United States).

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

Palaeoctonus was described by the following scientific paper(s):
  • E. D. Cope. 1878. On some Saurians found in the Triassic of Pennsylvania, by C. M. Wheatley. Proceedings of the American Philosophical Society 17(100):231-232
  • E. D. Cope. 1893. A preliminary report on the vertebrate paleontology of the Llano Estacado. Fourth Annual Report of the Geological Survey of Texas 1892:11-136