Named By: Greenwood - 1955.
Classification: Chordata, Mammalia, Rodnetia, Ctenohystrica, Hytricognathi.
Species: X. crassidens (type).
Size: Uncertain due to lack of remains, but comparison to similar animals yields an estimate of 60 to 90 centimetres long.
Known locations: Africa.
Time period: Tortonian of the Miocene through to the Piacenzian of the Pliocene.
Fossil representation: Many specimens, mostly of the dentaries.
Members of the genus Xenohystrix are prehistoric relatives of Hystrix cristata, also known as the crested porcupine which lives in Africa today. Like with their living relatives, Xenohystrix would be expected to have a covering of sharp quills to protect them from predators. Also like living porcupines, Xenohystrix may have eaten plants and occasionally invertebrates while also scavenging carrion from time to time.
- Earliest evidence for Atherurus and Xenohystrix (hystricidae, rodentia) in Africa, from the late Miocene site of Lemudong’o, Kenya - Leslea J. Hlusko - 2007.