Alioramus

Alioramus was a slender, long-snouted cousin of T. rex that lived in humid floodplains of Late Cretaceous Mongolia. With distinctive bumpy ridges on its snout, this predator belonged to a unique branch of tyrannosaurs called Alioramini. Two species have been identified from fossils found in Mongolia's Nemegt Formation.

• Had a slender snout with five bony crests along its nose
• Lived alongside the larger tyrannosaur Tarbosaurus bataar
• A second species, A. altai, was discovered in 2009