Debate kicked off in 1988 when a single small tyrannosaur skull discovered four decades earlier was given its own species ...

Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or ...

Paleontologists have long debated whether small tyrannosaurs were their own species or simply teenage T. rexes. This debate ...

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 ...

Specifically, whether or not certain fossils found in Montana belonged to a young Tyrannosaurus rex or a completely separate, ...

Vladimir Guerrero Sr. sends reality check to Blue Jays son after World Series win Protesters, Durango police respond to ICE arrest of family in southwestern Colorado Government Shutdown 2025 Update: ...

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

The fossil skull of a mystery tyrannosaur has been the subject of debate since it was discovered in the 1940s.

The “dueling dinosaur” fossil still leaves more questions than answers as scientists now attempt to determine their causes of ...

The debate over Nanotyrannus’ identity is finally over. A remarkably preserved fossil proves it was a mature species, not a teenage T. rex. This discovery rewrites how scientists understand ...

The new skeleton is dubbed ‘Dueling Dinosaurs’ because it was found intertwined with the bones of a Triceratops ...