Now, a revolutionary new hypothesis says the relationships between the major groups of dinosaurs need radical reorganization. If confirmed, old branches of the dinosaur family tree may be pruned ...

A new dinosaur family tree floated earlier this year isn't quite right, and the old tree, which researchers have accepted as canon for 130 years, isn't much better, a new study finds.

Scientists had expected such a dinosaur forerunner to be a smallish, two-legged predator resembling early dinosaurs such as Herrerasaurus, which lived about 231 million years ago in Argentina.

Scientists have discovered a new species of dinosaur - in the collection of a Mongolian museum - that they say "rewrites" the evolutionary history of tyrannosaurs. Researchers concluded that two ...

Researchers may have discovered a new way to classify dinosaurs, shaking up the 130-year-old method of dividing them up based on the shape of their hips.

Tyrannosaurus Rex moves to a new branch on the dinosaur family tree in Matt Baron's study. Photo / AP Tyrannosaurus Rex and his buddies could be on the move as a new study proposes a massive shake ...

Boulder dinosaur-digger Bob Bakker has confirmed that the dinosaur, found by three amateurs, is a new species in a rare family with a handful of known North American relatives.

Dinosaur family gets curly horned new member called Wendiceratops pinhornensis Newly-named dinosaur becomes member of family that includes the Triceratops By Afp 08 July 2015 • 9:51pm ...

The new study assesses kinship among 74 dinosaur species that span the family tree, on the basis of similarities or differences in more than 450 anatomical features, says Matthew Baron, a ...

The work is to appear in the academic journal Palaeontology. The fossil represents the dorsal vertebra (back bone) of a new family, genus and species of dinosaur now named Xenoposeidon proneneukus. It ...