Nanotyrannus lethaeus was a fast, agile predator distinct from T. rex, with longer legs, stronger arms and a body built for ...

Debate kicked off in 1988 when a single small tyrannosaur skull discovered four decades earlier was given its own species ...

A new analysis of a fossil unearthed in 2006 provides a fresh line of evidence that a separate tyrannosaur lineage called Nanotyrannus lived alongside the famous T. rex ...

“The fossil, part of the legendary ‘Dueling Dinosaurs’ specimen unearthed in Montana, contains two dinosaurs locked in prehistoric combat: a Triceratops and a small-bodied tyrannosaur. That ...

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

Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or ...

Two paleontologists think they have settled a long-standing debate as to whether certain fossils from the very end of the ...

Three frogs, a shark, a unicorn and a Tyrannosaurus rex dance in front of a line of heavily armored police in riot gear.

Three frogs, a shark, a unicorn and a Tyrannosaurus rex dance in front of a line of heavily armoured police in riot gear.

Dinosaur stories are often written for children, with a cast of neon cartoon characters or animatronic models. But for adults ...