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.” Previous Quiz List Find a Dinosaur Pachycephalosaurus ClassificationMarginocephalia CharacteristicsHerbivorous EraCretaceous period Albertaceratops ClassificationMarginocephalia CharacteristicsHerbivorous EraCretaceous period Erketu ClassificationSauropods CharacteristicsHerbivorous EraCretaceous period Gastonia ClassificationThyreophora CharacteristicsHerbivorous EraCretaceous period Sponsored Links Sponsored Links Dinosaur List