The Royal Lusitano
at
Le Cheval of St. Charles
Looking further back into the evolution of the horse, we find that the most ancient ancestor of the horse was a small, herbivorous mammal of the genus Eohippus from the Eocene Epoch, having four-toed front feet and three-toed hind feet, which existed fifty million years ago in an area that is now the western United States. Eohippus eventually became modified into what we know as the horse. These horses then migrated from America through the land bridge connecting Alaska and Siberia and entered Asia where they established themselves and from where they disseminated to Europe and Africa. When the Spaniards arrived in the New World however, the horse had been extinct in the American continent for about 8000 years.