Nimravinae

The Nimravinae are a subfamily of the Nimravidae, an extinct family of feliform mammalian carnivores sometimes known as false saber-toothed cats. They were endemic to North America, Europe, and Asia from the Middle Eocene through the Late Miocene epochs (Bartonian through Tortonian stages, 40.4—7.2 mya), spanning about 33.2 million years. Centered in North America, the radiation of the Nimravinae from the Eocene to Oligocene was the first radiation of cat-like carnivorans.