New research has overturned decades of uncertainty by showing that Nanotyrannus was a fully grown predator, not a juvenile T. rex.

For decades, a small tyrannosaur skull has divided paleontologists over whether it belonged to a separate species or a ...

For decades, paleontologists argued over the lone skull used to establish the distinct species Nanotyrannus. Was it truly a ...

WASHINGTON (Reuters) - Surmising even the physical appearance of a dinosaur - or any extinct animal - based on its fossils is a tricky proposition, with so many uncertainties involved. Assessing a ...

(TMX) - A fossil once locked in prehistoric combat has just rewritten one of paleontology’s longest-running debates — and upended what scientists thought they knew about Tyrannosaurus rex. The ...

It seems a little strange to have strong feelings about a dinosaur that probably never existed. And yet, if you want to get dinosaur fans riled, you need not say much more than “Nanotyrannus.” ...

A dinosaur fossil listed for sale in London for $20 million embodies one of the most heated debates in paleontology. By Julia Jacobs and Zachary Small Zachary Small reported from London, and Julia ...

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What if everything we know about T. rex growth is wrong? A complete tyrannosaur skeleton has just ended one of paleontology's longest-running debates—whether Nanotyrannus is a distinct species, or ...

Paleontologists at the North Carolina Museum of Natural Sciences have discovered a new species of dinosaur called nanotyrannus lancensis. The discovery came after studying a fossil called "Dueling ...

UNDATED (WKRC) - The king of dinosaurs is earning its name 66 million years after extinction. A new study published in the Ecology and Evolution journal has uncovered the possibility that the ...

Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type of dinosaur? At first, researchers had only a tyrannosaur skull to ...