Paleontologists have newly described a marine reptile species called Tylosaurus rex that lived in ancient oceans.
The massive mosasaur measured up to 43 feet long and lived 80 million years ago in waters then covering North America.
Researchers uncovered the species after examining fossils misidentified for decades in museums.
AI-generated summary was reviewed by a CNN editor.
Paleontologists have long hailed Tyrannosaurus rex as king of the dinosaurs. Now, the name “T. rex” also belongs to a newly described extinct carnivore — a massive marine reptile with the scientific name Tylosaurus rex that a trio of researchers uncovered after a hefty amount of detective work.
