Horses also evolved in North America; however, they were too small and delicate for domestication. The earliest horses had five-toed feet!
(That is, had there been humans around back then to domesticate them).
It took Spanish ships to introduce horses back to the New World.
Yup, the ancestors of the horse originated in what is now the Americas, about 55 million years ago, and the eventual Equus species spread into Eurasia and Africa beginning at least a million years ago.
https://awionline.org/content/wild-horses-native-north-american-wildlife
I thought the indians ate the horses in North America until the Spanish showed up.