A new analysis of a fossil unearthed in 2006 provides a fresh line of evidence that a separate tyrannosaur lineage called ...
How did these different dinosaur species interact? Did they hunt different prey? What did T. rex adolescence really look like ...
An argument over whether fossils from several small dinosaurs represent a juvenile Tyrannosaurus rex or smaller adults of a ...
Researchers say they have uncovered a case of mistaken identity and found evidence of a species called Nanotyrannus lancensis.
An analysis suggests Nanotyrannus is a separate, smaller dinosaur that lived alongside T. rex, settling a 30-year debate ...