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 Sauropelta ClassificationThyreophora CharacteristicsHerbivorous EraCretaceous period Guanlong ClassificationTheropods CharacteristicsCarnivorousFeathered EraJurassic period Segnosaurus ClassificationTheropods CharacteristicsHerbivorous EraCretaceous period Polacanthus ClassificationThyreophora CharacteristicsHerbivorous EraCretaceous period Sponsored Links Sponsored Links Dinosaur List