From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Temporal range: Early Oligocene–Late Oligocene
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Canidae
Subfamily: Hesperocyoninae
Genus: Philotrox
Merriam, 1906
Species: P. condoni
Binomial name
Philotrox condoni
Merriam, 1906

Philotrox is an extinct genus of bone crushing omnivorous mammal similar to a dog of the family Canidae which inhabited North America during the Oligocene living from 30.8—26.3 Ma and existed for approximately 4.5 million years. [1]


Philotrox was named by Merriam (1906). Its type is Philotrox condoni. It was assigned to Canidae by Merriam (1906) and Carroll (1988).[2] Only a single species, Philotrox condoni, is recognized.


Two specimens were examined by Legendre and Roth for body mass. The first specimen was estimated to weigh 14.6 kg (32 lb). The second specimen was estimated to weigh 13.6 kg (30 lb).[3]


  1. ^ Philotrox: Basic info.
  2. ^ R. L. Carroll. 1988. Vertebrate Paleontology and Evolution. W.H. Freeman and Company
  3. ^ S. Legendre and C. Roth. 1988. Correlation of carnassial tooth size and body weight in recent carnivores (Mammalia). Historical Biology 1(1):85-98