Nanotyrannus and Tyrannosaurus both were members of a lineage of meat-eating dinosaurs called tyrannosaurs, but were not the ...

For years, paleontologists have debated whether the T. rex-like dinosaur in the fossilized tableau and others are indeed ...

Jane, long thought to be a juvenile Tyrannosaurus rex, has been reclassified as a new species called Nanotyrannus lethaeus, according to a recent study by researchers Dr.

A new analysis of a fossil unearthed in 2006 provides a fresh line of evidence that a separate tyrannosaur lineage called ...

While Tyrannosaurus rex ruled the lush woodlands of North America, its close relative, the Tarbosaurus, dominated the scrublands and plains of Mongolia. This documentary delves into the fascinating ...

Palaeontologists have argued for decades over whether certain fossils are young Tyrannosaurus rex or another species entirely ...

Fossils paleontologists initially thought belonged to a juvenile Tyrannosaurus rex actually belong to a new species of ...

Paleontologists spotted injuries on the tails of duck-billed dinosaur fossils that might have occurred during mating.

Researchers say they have uncovered a case of mistaken identity and found evidence of a species called Nanotyrannus lancensis.

What if everything we know about T. rex growth is wrong? A complete tyrannosaur skeleton has just ended one of paleontology's ...

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

Specifically, whether or not certain fossils found in Montana belonged to a young Tyrannosaurus rex or a completely separate, ...