A new specimen of one of the most controversial species of dinosaur has the potential to overturn decades of research on the T rex. Nanotyrannus, the “miniature T rex”, has been the centre of one of ...

Nanotyrannus isn't a 'mini T. Rex' after all — it's a new species, 'dueling dinosaurs' fossil reveals An argument over whether fossils from several small dinosaurs represent a juvenile Tyrannosaurus ...