| Oxetocyon Temporal range:  | |
|---|---|
| Scientific classification  | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Mammalia | 
| Order: | Carnivora | 
| Family: | Canidae | 
| Subfamily: | †Borophaginae | 
| Genus: | †Oxetocyon Green, 1954 | 
| Species: | †O. cuspidatus | 
| Binomial name | |
| †Oxetocyon cuspidatus Green, 1954 | |
|  | |
| Range of Oxetocyon based on fossil distribution | |
Oxetocyon ("beginning dog") is an extinct monospecific genus of the Borophaginae subfamily of canids native to North America. It lived during the Early Oligocene epoch,[1] existing for approximately 2.5 million years. Fossils have been found in Nebraska and South Dakota.
Fossils of Oxetocyon are rare and, as a result, the genus is poorly known, and only the teeth, dentaries, and a fragmentary skull have been reported. The teeth of Oxetocyon indicate a hypocarnivorous diet, as is found in the living raccoon dog, and suggest a potential relationship to the unusual borophagine Otarocyon. Oxetocyon is distinguished from Otarocyon by its own set of dental specializations for an omnivorous diet, particularly by the presence of a cleft that divides each upper molar into front and back halves.[2]
References
- ↑ PaleoBiology Database: Oxetocyon Taxonomy, Species
- ↑ Xiaoming Wang, R.H. Tedford, and B.E. Taylor. 1999. Phylogenetic systematics of the Borophaginae