The Dawn Horse, Eohippus, Hyracotherium
Hyracotherium, the earliest known horse, lived in the early
Eocene, about 50 million years ago in Asia, Europe and North America, was
less than 20 inches long and stood less than 10 inches tall at the shoulder.
This tiny horse was preyed on by early dog and cat like predators and even
giant carnivorous birds!
Hypohippos was a Miocene Horse
that inhabited heavy undergrowth
in North America.
Early North American Horses were not the ancestors of present day horses.
A Pleistocene Horse That Lived in North America.
Saber Toothed Tiger Preys on
an Early Horse Eohippus
Phenacodus lived about 55 million years ago, evolving only 10 million years after
the dinosaurs had gone extinct and was one of the earliest of the first hoofed mammals,
possibly a predecessor of the long leaniage of