Tyrannosaurus (/ tɪˌrænəˈsɔːrəs, taɪ -/) [a] is a genus of large theropod dinosaur. The type species Tyrannosaurus rex (rex meaning 'king' in Latin), often shortened to T. rex or colloquially t-rex, …

Oct 24, 2025 · Tyrannosaurus rex, species of large predatory theropod dinosaurs that lived during the end of the Cretaceous Period (about 66 million years ago) known from fossils found in the …

The meaning of REX is an animal (such as a domestic rabbit or cat) showing a genetic recessive variation in which the guard hairs are very short, sparse, or entirely lacking.

6 hours ago · Fossils paleontologists initially thought belonged to a juvenile Tyrannosaurus rex actually belong to a new species of dinosaur that belongs to a distinct genus.

1 day ago · A new look at the "Dueling Dinosaurs" fossil reveals that Tyrannosaurus rex was not the only tyrannosaur roaming the land.

REX is an internationally acclaimed architecture and design firm based in New York City. Believing architecture should actively empower its users and communities—not simply be a …

9 hours ago · Did certain small tyrannosaur fossils belong to “teen rex” or another species? New analysis of a recent fossil appears to have settled the debate.

But Tyrannosaurus rex was one of the fiercest predators of all time. T. rex had a massive body; a mouth full of 60 eight-inch-long, supersharp teeth; and the strongest bite of any land...

7 hours ago · A ferocious debate over teenage T. rex fossils may finally be settled For decades, paleontologists debated whether fossils were of a young T. rex or a species called …

7 hours ago · An analysis suggests Nanotyrannus is a separate, smaller dinosaur that lived alongside T. rex, settling a 30-year debate