The Classical Era was the time during the beginning of the game itself that lasted until the arrival of the Stegosaurus. During this time period, sandbox was the main mode on The Isle and brought peace to the dinosaurs of this time period. The dinosaurs that appeared during this time were: TSL Tyrannosaurus, Austroraptor, Carnotaurus, Gallimimus, Shantungosaurus, Therizinosaurus, and the Puertasaurus. Megapacks were less common, KOSing was barely a thing, and carebearing was non-existent. Although KOSing was hardly anything in the beginning, it was the Therizinosaurus that brought the rise of KOSing, which they gladly enjoyed destroying all non-theris. The Classical Era ended with the arrival of the Stegosaurus and brought the Post-Classical Era to life.