Philotrox

Philotrox is an extinct monospecific genus of the Hesperocyoninae subfamily of early canids native to North America. It lived during the Oligocene, 30.8—26.3 Ma, existing for approximately 5 million years.^[1] In form, it was intermediate between the small Cynodesmus and the later Enhydrocyon, the first hypercarnivorous, "bone-cracking", canid.^[2]

Philotrox Temporal range: Oligocene PreꞒ Ꞓ O S D C P T J K Pg N
Philotrox condoni
Scientific classification
Domain:	Eukaryota
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

References

1. Philotrox
2. Wang, Xiaoming; Tedford, Richard H. (2008). Dogs, Their Fossil Relatives and Evolutionary History. Columbia. p. 25. ISBN 978-0-231-13528-3.

• Wang, X. 1994. Phylogenetic systematics of the Hesperocyoninae (Carnivora, Canidae). Bulletin of the American Museum of Natural History, 221:1-207.