Original: Gorgonops (literally "Gorgon face") is an extinct genus of therapsid which lived about 255-250 million years ago, during the latest part of the Permian Period.
Simplified: Gorgonops (literally "Gorgon 'face") is the name given to an extinct genus of therapsid which lived about 255-250 million years ago, during the latest part of the Permian period.