Mammalia - Perissodactyla - Hyrachyidae
Alternative spelling: Hyrachyinae
Parent taxon: Rhinocerotoidea according to L. T. Holbrook 1999
See also Hay 1902, Peterson 1919 and Radinsky 1966
Sister taxa: Amynodontidae, Caenolophus, Eggysodontidae, Ergilia, Huananodon, Hyracodontidae, Meschotherium, Pakitherium, Paraceratheriidae, Punjabitherium, Rhinocerotidae, Siamolophus, Symphysorrhachis, Toxotherium, Veragromovia
Subtaxa: Hyrachyus Hyrachyus douglassi Subhyrachyus
Type: Hyrachyus
Ecology: ground dwelling browser
Distribution:
• Eocene to Oligocene of China (1 collection)
• Eocene of China (8), France (6), Germany (14), Jamaica (1), Japan (1), Spain (1), Switzerland (4), the United Kingdom (2), United States (129: California, Colorado, Montana, Nevada, Oregon, Texas, Utah, Wyoming)
Total: 167 collections including 187 occurrences