One of the top predators of the Jurassic period wasn't a dinosaur but a bone-crushing giant crocodile with the serrated teeth of a T. rex, according to a new study in the journal PeerJ.
원문출처 : http://www.cnn.com/2017/07/04/world/giant-crocodile-razana-study/index.html
원문출처 : http://www.cnn.com/2017/07/04/world/giant-crocodile-razana-study/index.html