Main Group: Placental Mammals (Carnivores)

Time: Pliocene - Pleistocene

Size: possibly 5 ft (1.5 m) long

Fossil Finds: North America

Miracinonyx (1)

Physical rendering

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.