In Depth Although still a primitive horse the teeth of Epihippus show a trend more towards the grinding of grasses over the slicing of plant vegetation like leaves. This is a reaction to the changing ecosystems of the Eocene which saw the beginning of a reduction in forests with their subsequent replacement by grassy plains. … Read more
In Depth Further Reading – A contribution to the vertebrate paleontology of Texas. – Proceedings of the American Philosophical Society 30(137):123-131 – E. D. Cope – 1892.892. - A new Pliocene horse from Idaho, James W. Gidley - 1930
In Depth Anchitherium was a genus of three toed prehistoric horse that was a browser of plants rather than a grazer of grass, something that is most easily revealed by the teeth that have much lower crowns than those of known grazing horses. This is also why Anchitherium disappeared without leaving any modern descendants because … Read more
In Depth Hippidion is one of the first known horses to actually enter South America, but interestingly while it has been regarded as being directly descended from primitive forms such as Pliohippus, more modern analysis actually draws a link to the Equidae, the group that includes modern horses. One thing that makes Hippidion stand out … Read more
In Depth Originally named after a species of Anchitherium, Hypohippus was a primitive three toed horse that browsed upon vegetation rather than grazing on grass. Hypohippus acquired its name from the low middle cusp of its molars. As a browser the teeth had proportionately lower crowns than the teeth of grazing horses. Hypohippus would have … Read more