Original sentence: The Nimravidae, sometimes known as false sabre-tooths, are an extinct family of mammalian carnivores living from Eocene through Miocene (epoch (42—7.2 mya), existing for approximately
Edited sentence: The Nimravidae, sometimes known as false sabre-tooths, are an extinct family of mammalian carnivores living from the Eocene through the Miocene (epoch (42—7.2 mya), existing for approximately