We don't know the name of this thing.
But we do know where it came from. So we're using that to title the page logically. If you know a better, more precise name, tell us.
A Cheetah World horse was a horse from the homeworld of the Cheetah People. Their relationship to Earth horses was unclear.
The Cheetah People were adept riders of these horses, suggesting a similar relationship between Cheetahs and these horses as existed between humans and Earth horses. (TV: Survival)