Dinosaur Discovery: Fossilized tooth

James Di Loreto / Smithsonian
March 14, 2016
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Fossil tooth
James Di Loreto / Smithsonian

A fossilized tooth of the new tyrannosaur Timurlengia euotica from the Late Cretaceous Period that was found in the Kyzylkum Desert, Uzbekistan. The fossilized remains of a new horse-sized dinosaur, Timurlengia euotica, reveal how Tyrannosaurus rex and its close relatives became top predators, according to a new study published in the Proceedings of the National Academy of Sciences.