In Depth
Further Reading
– On some of the characters of the Miocene fauna of Oregon. – Proceedings of the American Philosophical Society 18(102):63-78. – E. D. Cope – 1878. – Taxonomy and distribution of Daeodon, an Oligocene-Miocene entelodont (Mammalia: Artiodactyla) from North America. – Proceedings of the Biological Society of Washington. 111 (2): 425–435. – S. G. Lucas, R. J. Emry & S. E. Foss – 1998.