It was discovered in 2006 in the Futaba Formation

Length 94mm

This reptile had an unusual appearance compared to the better-known dinosaurs

El nombre "Yutyrannus" significa "tirano de plumas" y hace referencia a su relación con los tiranosaurios

limbs modified into flippers

Lythronax argestes Mammuthus It was discovered in 2006Lythronax argestes was a carnivorous theropod dinosaur of the Tyrannosauridae group that lived during the Late Cretaceous , in the early middle Campanian (approximately 8079 million years ago) . Its remains come from the Wahweap Formation , in what is now southern Utah (United States) , within the ancient island continent of Laramidia , and its discovery has been key to understanding the origin and early diversification of tyrannosaurids in North