An argument over whether fossils from several small dinosaurs represent a juvenile Tyrannosaurus rex or smaller adults of a ...

Gov. Josh Stein announced on Thursday the discovery of a new tyrannosaur species, Nanotyrannus, at the North Carolina Museum ...

The Nanotyrannus's small skull has been the source of debate among dinosaur experts for at least four decades, according to the paper. Earlier research suggested it belonged to a young T. rex, but ...

The discovery, made in collaboration with North Carolina State University, is based on the “Dueling Dinosaurs” fossil, which was found in the Hell Creek Formation in Montana.

A new study of dinosaur biodiversity challenges the belief that the megafauna were on their way out 66 million years ago ...

Now, a research team says new evidence resolves the case. The latest clue comes from a complete skeleton — first uncovered in Montana in 2006 — that scientists say identifies the mystery reptile as ...

A new study is challenging a long-standing view of the final days of the dinosaurs. For decades, many palaeontologists ...

The end of the dinosaurs was clearly linked to an asteroid impact that brought the Cretaceous period to a close. But the ...

A long-standing paleontological mystery may finally be resolved. Scientists have discovered a fossilized skeleton in Montana ...

Artist’s depiction of Eoneophron infernalis (top left), MOR 752 (bottom left), and Anzu wyliei (right) in the Hell Creek Formation. Illustration by Zubin Erik Dutta. Funding: Funding for histology ...

A new analysis of a controversial tyrannosaur fossil reveals the dinosaur wasn't a teenage version of T. rex as once thought, ...

Imagine the badlands of eastern Montana, a stark, heavily eroded landscape of steep-sided coulees, sandstone outcrops, and boulder-strewn washes. Vegetation is sparse, little more than sage, ...