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How big were horses 55 million years ago?
EOHIPPUS. The first equid was Hyracotherium, a small forest animal of the early Eocene. It looked nothing at all like a horse (10 – 20” hight). It resembled a dog with an arched back, short neck, short snout, short legs, and long tail.The earliest known horses, Hyracotherium or Eohippus, were about the size of a modern fox terrier. They had four toes on each front foot and three on each hind foot. Taxonomic classification is a bit uncertain, but currently all Eohippus are considered to be genus Hyracotherium but not all Hyracotherium are Eohippus.Their work revealed that the majority of medieval horses, including those used in war, were less than 14.2 hands (4 feet 10 inches) tall from the ground to their shoulder blades—the maximum height of a pony today, according to Matthew Hart for Nerdist.

What did prehistoric horses look like : During the early Eocene there appeared the first ancestral horse, a hoofed, browsing mammal designated correctly as Hyracotherium but more commonly called Eohippus, the “dawn horse.” Fossils of Eohippus, which have been found in both North America and Europe, show an animal that stood 4.2 to 5 hands (about 42.7 to 50.8 …

How big were horses 56 million years ago

Hyracotherium (56-45 MYA): There were many species of Hyracotherium or dawn horse. It was quite small in size from a Siamese cat to medium dog.

How big were horses 50 million years ago : Hyracotherium and Mesohippus, the Earliest Horses

Until an even earlier candidate is found, paleontologists agree that the ultimate ancestor of all modern horses was Eohippus, the "dawn horse," a tiny (no more than 50 pounds), deer-like herbivore with four toes on its front feet and three toes on its back feet.

By 55 million years ago, the first members of the horse family, the dog-sized Hyracotherium, were scampering through the forests that covered North America. For more than half their history, most horses remained small, forest browsers.

The earliest known horses, Hyracotherium or Eohippus, were about the size of a modern fox terrier. They had four toes on each front foot and three on each hind foot. Taxonomic classification is a bit uncertain, but currently all Eohippus are considered to be genus Hyracotherium but not all Hyracotherium are Eohippus.