@naturalhistorymuseum: 🚨Research alert! There’s a new T. rex in town. A newly described species of giant mosasaur—growing up to 43 ft long with serrated teeth—has been named Tylosaurus rex, or “king of the tylosaurs.” One of the largest mosasaurs known to date, this T. rex might be every bit as fearsome as the original “tyrant king.” Learn more with paleontologist and Museum Research Associate Amelia Zeitlow, and check out the link in our bio for a deep dive into this prehistoric predator. #paleontology #mosasaurs #fossils #Science #museumtok