Earless, hairless, apex predator with saber teeth: Oldest known ancestor of mammals found in Mallor
Researchers found a 270-million-year-old gorgonopsian fossil, the earliest known saber-toothed animal.
Smilesaurus skull. “Most of those ancient mammal relatives looked really different from what we think of mammals looking like today.”(photo credit: Cradle of Humankind is licensed under CC BY 2.0. Via Wikimedia Common)
