A paleontologist was trying to locate the site of a famous 1908 discovery when a rancher in Wyoming shared an important clue.

A recent study suggests the unique geology of an area in Wyoming makes it a trove of unusually preserved fossils

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 its own species and not a juvenile Tyrannosaurus rex.

An argument over whether fossils from several small dinosaurs represent a juvenile Tyrannosaurus rex or smaller adults of a separate species may finally be settled.

A new dome-headed dinosaur species was discovered in Montana, a study released this month shows. Researchers discovered the fossils of Brontotholus harmoni, a dome-headed dinosaur in Montana, according to the paper published Oct. 9 in the Zoological Journal of the Linnean Society.

The skeletons of a duck-billed dinosaur found more than 100 years ago are so well-preserved that they contain fleshy body parts embedded in thin layers of clay.

The new species is called Nanotyrannus. Compared to the well known tyrannosaurus rex, a nanotyrannus was more speedy and agile.

Tributes have been paid to an islander who discovered evidence of dinosaur footprints in the Isle of Skye as a schoolboy. Dugald Ross, who has died at the age of 68 following a period of ill health, made the discovery years before they were officially recognised as fossils in the 1980s.

A new species of dome-headed dinosaur has been discovered in fossils found in Montana, according to researchers. The dinosaur, named Brontotholus harmoni, belongs to the family pachycephalosauridae and is believed to have lived about 75 million years ago during the Late Cretaceous period,

What began as a sweet family moment of laughter ended in bloodshed and tragedy when a mum and her young sons were murdered in their own home