| Named By: | Georges Cuvier in 1824 (Some sources cite Croizet and Jobert in 1828) | 
| Time Period: | Early Pliocene to Middle Pleistocene | 
| Location: | Africa, Europe, Asia and North America | 
| Size: | Approximately 1.2 meters long, there is some variance between species | 
| Diet: | Carnivore | 
| Fossil(s): | Many specimens, although they are often fragmentary and incomplete | 
| Classification: | | Chordata | Mammalia | Carnivora | Felidae | Machairodontinae | | 
Megantereon was a genus of prehistoric machairodontine saber-toothed cat that lived in North America, Eurasia, and Africa. It may have been the ancestor of Smilodon.