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

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

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

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

A new look at the "Dueling Dinosaurs" fossil reveals that Tyrannosaurus rex was not the only tyrannosaur roaming the land.

Argentine scientists reveal Chucarosaurus diripienda, a giant 30-meter titanosaur found in Patagonia that challenges ...

The fossil, called Cretosabethes primaevus, shared traits with modern mosquitoes. Scientists think it lived in small water ...

A fascinating fossil discovery in Kenya is changing how scientists see Paranthropus boisei, an ancient human relative that ...

Lichens were already widespread more than 410 million years ago, according to a new international study that identifies a ...

Researchers have uncovered dozens of long-misidentified coelacanth fossils in British museums, some overlooked for more than ...