Main Group: Placental Mammals (Carnivores)
Time: Pliocene - Pleistocene
Size: possibly 5 ft (1.5 m) long
Fossil Finds: North America
Miracinonyx known as the American cheetah, was most likely more related to modern day cougars than to African cheetahs. If this is so, then this would be a case of convergent evolution - the two species evolved the same traits despite being distantly related.