Ancient Australia’s predator hierarchy was flipped — giant raptors ruled while T. rex-like dinosaurs stayed small.

Megaraptorids are known for somewhat small but sharp teeth, air-filled bones, and powerful forelimbs with enormous claws. These dinosaurs have mostly been found in southern continents.

Five dinosaur specimens discovered near Australia’s south-eastern coast have shed light on the region’s Cretaceous predators. The finds come from fossil beds hundreds of kilometers and millions of years apart,