Eohippus


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Eohippus

the oldest known ancestor of the horse. A short, 25-50 cm high, rodent-like animal with four toes on each forefoot and three on each hind. Each toe had a hoof. The Eohippus survived by its speed. See also mesohippus.
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Tracing a line of descent from Eohippus to Equus, fossils reveal four trends (Figure 1- 6):
THE horse has come a long way since eohippus, evolving over countless centuries into an almost countless variety of distinct breeds, most of them developed to suit man's purposes.
La evolucion del pterodactilo en el petirrojo tardo millones y millones de anos; la del eohippus en el caballo de tiro belga llevo otros millones de anos.