Giant Killer Dinosaur Discovery Solves Century-Old Mystery
From about 161 to 66 million twelvemonth ago , a group of large , feather predators call in abelisaurs roamed the Earth . Their extremely small forelimbs contrasted dramatically with their muscular legs , which they used to chase down their prey before snapping them up in their jaws , chomping on them with their razor - penetrative teeth . While clearly dire , their true size were really poorly constrained ....