Fearsome dinosaur-era marine reptile was T. rex of the sea

Scientists confirmed a fearsome sea creature, Tylosaurus rex, was the T. rex of its time! They said, "The skull alone is as long as I am tall." This massive marine reptile, about 13.2 meters long, hunted in ancient seas around 80 million years ago, rivaling its land-dwelling T. rex cousin in size and ferocity.