There’s a New T. Rex in Town—and It Swims
A new species of mosasaur named Tylosaurus rex has been discovered in Texas, previously misidentified in museum collections. This species, measuring 43 feet long, is noted for its size and aggressive nature compared to other mosasaurs. Researchers highlight evidence of violence within this species, suggesting it was a formidable predator in the ancient seas of North America.
- ▪The newly discovered mosasaur is named Tylosaurus rex, meaning 'king of the tylosaurs.'
- ▪T. rex measures 43 feet long, making it an apex predator of the shallow sea.
- ▪The species exhibits razor-sharp serrated teeth and a more aggressive demeanor than other mosasaurs.
Opening excerpt (first ~120 words) tap to expand
{"@context":"https://schema.org","@type":"Article","headline":"There’s a New T. Rex in Town—and It Swims","description":"There’s a New T. Rex in Town—and It Swims: It’s mean, too","image":["https://lede-admin.nautil.us/wp-content/uploads/sites/70/2026/05/Currie_HERO_2e6f70.png"],"datePublished":"2026-05-22T14:18:36+00:00","dateModified":"2026-05-22T14:18:37+00:00","author":[{"@type":"Person","name":"Jake…
Excerpt limited to ~120 words for fair-use compliance. The full article is at Nautil.
Discussion
0 commentsMore from Nautil
