Messinian genus first appearances

Megantereon is an extinct genus of prehistoric machairodontine saber-toothed cat that lived in Eurasia, Africa and possibly North America from the late Pliocene to the Middle Pleistocene, first described by George Cuvier in 1824. It is a member of the tribe Smilodontini, and closely related to and possibly the ancestor of the more widely-known American sabertooth Smilodon, with which it shared greatly elongated saber canine teeth. In comparison to Smilodon, Megantereon was somewhat smaller, around the size of a jaguar, although it is thought to have had a similar hunting strategy as an ambush