New tyrannosaur bridges gap from medium to monstrous

Horse-sized dinosaur had brain, ears like its bigger relative T. rex

Timurlengia euotica

IN-BETWEENER  The horse-sized tyrannosaur Timurlengia euotica, which roamed what is now Uzbekistan 90 million years ago, already had the supersenses of the giant tyrannosaurs that appeared millions of years later.   

Todd Marshall

A fossil from a new species of dinosaur is helping to bridge a crucial 20-million-year gap in tyrannosaur evolution.