T. rex fossil is actually a species new to science, study says

They Want to Break T. Rex Into 3 Species. Paleontologists Aren't Pleased. - The New York Times

Why the sale of a T. rex fossil could be a big loss for science

The Tyrannosaurus rex May Have Had More Brains Than You Think

What we thought we knew about T. rex was wrong, researchers say in new study

Tyrannosaurus rex may have been three separate species, say scientists

New study estimates shocking number of T. rexes in Earth's history

Tyrannosaurus rex walked surprisingly slowly, new study finds

Tyrannosauridae - Wikipedia

T-Rex: Tyrannosaurus Dinosaur Facts and Information

Famous Dinosaurs - Fossils and Paleontology (U.S. National Park Service)

Stan the T. rex auction sale of $31.8 million sets a record — and sets back science

SUE the T. rex - Field Museum

T. rex was bigger than thought: study

Tyrannosaur Paleobiology: New Research on Ancient Exemplar Organisms

Study refutes claim that T. rex was three separate species