Meet The Bone-Crushing Apex Predator That Ruled S. America Long Before the Dinosaurs - The Weather Channel
weather.comSubmitted by theweatherchannel5332 in science
Pampaphoneus traces its ancestry back to an early therapsid branch called dinocephalians — a dominant terrestrial group that lived right before the catastrophic mass wipeout in the Permian period, some 250 million years ago.