Researchers in Australia have discovered fossils of two enormous predators that lived alongside one another, upending ideas about how the ancient ecosystem operated down under 120 million years ago. This cache of fossils included the oldest large megaraptor ever found.
Megaraptorids were a group of fearsome predators in the Cretaceous period (145 million to 66 million years ago). They lived in the ecosystems of Australia and South America, which were joined together via Antarctica as part of a massive southern landmass called Gondwana.
