Q What is the official scientific name for Tyrannosaurus? A Tyrannosaurus lux B Tyrannosaurus rex C Tyrannosaurus rox Answer B Tyrannosaurus rexThe correct name is Tyrannosaurus rex. “Rex” is a Latin word that means “king.”Share this page Previous Quiz List Next Find a Dinosaur Shuvuuia ClassificationTheropods CharacteristicsCarnivorousFeathered EraCretaceous period Hypsilophodon ClassificationOrnithopoda CharacteristicsHerbivorous EraCretaceous period Anchisaurus ClassificationSauropods CharacteristicsHerbivorous EraJurassic period Sinosauropteryx ClassificationTheropods CharacteristicsCarnivorousFeathered EraCretaceous period Sponsored Links Sponsored Links Dinosaur List