"For the first time, we have a complete, detailed picture of a large dinosaur that we are really convinced of." ...

By working with the two mummies, the researchers were also able to determine that Edmontosaurus could likely grow over 40 ...

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

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 ...

Maybe that black cat that crossed your path wasn’t so bad after all. For the dinosaurs, an extinction-causing asteroid derailed what seemed to be a pretty good run. “It’s all just bad luck,” said New ...

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

Fireworks were blasted off after every touchdown the Hot Springs High School football team scored in last week’s regular ...

Between the Sinks and the Rise of the Middle Fork of the Popo Agie, the river famously disappears into subterranean mystery.

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

Fossils from New Mexico change how we look at dinosaur history.

A $6,400 bronze sculpture featuring bison by famous Wyoming artist Chris Navarro a placed in downtown Cheyenne in memory of a ...