Stay up to date with notifications from The IndependentNotifications can be managed in browser preferences.AllNewsSportCultureLifestyleTylosaurus rex reconstruction (Alderon Games - Path of Titans)Scientists have identified a new marine dinosaur species, Tylosaurus rex, which grew to 43ft and terrorised the seas over 80 million years ago. This massive mosasaur reptile, found primarily in northern Texas, is distinct from the land dinosaur Tyrannosaurus rex, despite sharing the 'T. rex' moniker. Researchers, led by Ron Tykoski, noted its finely serrated teeth, powerful jaw and neck muscles, and evidence of significant intraspecies violence. The discovery, based on fossils from the American Museum of Natural History and other institutions, suggests a need to re-examine existing mosasaur evolutionary relationships. This finding highlights Texas as a crucial region for understanding ancient marine ecosystems and opens a new avenue for research into these formidable predators. In fullScientists discover new marine T rex that was twice the size of great whites and ‘meaner than any mosasaur’Thank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in