While the T-Rex is famous for its fearsome stature, recent research has shown that it wasn't actually the largest dinosaur. Nowhere near it, in fact.

one of the largest in Japan and possibly a new species. The Nagasaki prefectural board of education and the Fukui Prefectural Dinosaur Museum, which have been conducting archaeological research ...

Fossil hunters have discovered dozens of other species of hadrosaurs (the largest group of duck-billed dinosaurs), since Haddy was first uncovered in a marl pit on a Haddonfield farm in 1838.