<p>Volunteer fossil hunters and trained paleontologists uncover a new Australian dinosaur and the oldest known megaraptorid.</p> <p>The post <a href="https://www.popsci.com/science/australia-dinosaurs-mega-raptor/">A 20-foot-long ‘mega raptor’ once stalked Australia</a> appeared first on <a href="https://www.popsci.com">Popular Science</a>.</p>