'Steak-knife' teeth reveal ecology of oldest land predators
Friday, February 7, 2014 - 11:00
in Paleontology & Archaeology
The first top predators to walk on land were not afraid to bite off more than they could chew, a study has found. Researchers suggest that Dimetrodon, a carnivore that walked on land between 298 million and 272 million years ago, was the first terrestrial vertebrate to develop serrated ziphodont teeth.