Mammalia - Perissodactyla - Hyrachyidae
Synonyms: Chasmotherium Rutimeyer , Colonoceras Marsh 1873, Ephyrachyus Wood 1934, Metahyrachyus Troxell 1922
Full reference: J. Leidy. 1871. Remarks on fossil vertebrates from Wyoming. Proceedings of the Academy of Natural Sciences of Philadelphia 23(2):228-229
Parent taxon: Hyrachyidae according to L. T. Holbrook 1999
See also Alroy 2002, Carroll 1988, Colbert and Schoch 1998, Cope 1881, Hay 1902, Hooker 1996, Leidy 1873, Peterson 1919, Prothero and Schoch 1989, Prothero and Schoch 1989, Radinsky 1966, Radinsky 1967, Radinsky 1967, Sahni and Khare 1973, Schoch 1984, Scott 1883, Scott 1913, Troxell 1922 and Wood 1934
Sister taxa: Hyrachyus douglassi, Subhyrachyus
Subtaxa: Chasmotherium depereti Hyrachyus crista Hyrachyus eximius Hyrachyus lunanensis Hyrachyus metalophus Hyrachyus minor Hyrachyus modestus Hyrachyus nanus Hyrachyus neimongoliensis Hyrachyus paradoxus Hyrachyus tongi
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 (128: California, Colorado, Nevada, Oregon, Texas, Utah, Wyoming)
Total: 166 collections including 186 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.