There's a new T. rex from the dinosaur age — and it ruled the seas with a skull-crushing bite
A new species of mosasaur, Tylosaurus rex, has been identified as a formidable marine predator from the dinosaur age. This species, measuring up to 43 feet long, was discovered in fossils primarily found in northern Texas. The findings highlight the importance of re-evaluating previously misidentified specimens in paleontological collections.
- ▪Tylosaurus rex is a newly described species of mosasaur that lived during the Cretaceous period.
- ▪The species name means 'king of the tylosaurs' and it can grow up to 43 feet long.
- ▪Fossils of T. rex were mostly discovered in northern Texas and date back about 80 million years.
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Animals Extinct species There's a new T. rex from the dinosaur age — and it ruled the seas with a skull-crushing bite The newly described mosasaur Tylosaurus rex spanned up to 43 feet (13 meters) long and may have been one of the fiercest marine predators of the dinosaur age. By Kenna Hughes-Castleberry published 21 May 2026 in News When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. An artist's reconstruction of Tylosaurus rex swimming in the Cretaceous seas of North America. (Image credit: Courtesy of Alderon Games/Path of Titans) Copy link Facebook X Reddit Pinterest Flipboard Share this article 0 Join the conversation Follow us Add us as a preferred source on Google Newsletter Subscribe to our newsletter There's a new T.
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