Scientists found a 307 million-year-old fossil, Tyrannoroter heberti, revealing one of the earliest known land vertebrates with teeth adapted for eating plants.
A chunky, squat creature that roamed Earth 307 million years ago is helping scientists understand how plant-eating animals first appeared on land. The newly described species is one of the earliest known tetrapods — or four-limbed animals — to show e... [5030 chars]