Choerosaurus dejageri, the permian therocephalian with a funny face.
I watched the first episode of surviving earth and that led me down a rabbit hole on permian therapsids and my new favorite extinct animal. It's a funny dog. I didn't know much about therocephalians and they're a lot more diverse than I thought! The bosses on Choerosaurus' skull is thought to be for display as they're too fragile for headbutting.

















