| Equus niobrarensis Temporal range: Late Pleistocene | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Perissodactyla |
| Family: | Equidae |
| Genus: | Equus |
| Subgenus: | incertae sedis |
| Species: | †E. niobrarensis |
| Binomial name | |
| †Equus niobrarensis | |
| Subspecies | |
| Synonyms [4] | |
Equus niobrarensis (or commonly, Niobrara horse) [5] is an extinct species of Equus , the genus that includes the horse. E. niobrarensis may be synonymous with Equus scotti . [4] It was "stout-legged" and belonged to the "big horses" category as defined by M. C. Winans. [4] The skull of the horse was noted as being broader than Equus caballus. [6]
E. niobrarensis was native to North America and commonly found in western North America and dates to the late Pleistocene. [7] Fossils of E. niobrarensis were discovered at Dry Cave in New Mexico. [8] Another mention of an E. niobrarensis discovery was in Skeleton Cave, Oregon. [9] [10]