A pile of dinosaur bones, discovered in 2000 in northern Mexico and stored at the Museo del Desierto, was recently identified as a new tyrannosaur species, Labocania aguillonae. Unlike its heavily built cousin, Tyrannosaurus rex, this species was long-legged and lightly built. Named after paleontologist Martha Carolina Aguillón, it is only the second tyrannosaur species found in Mexico. Dr. Nick Longrich and Héctor Rivera-Sylva described it in MDPI Fossil Studies, highlighting its significance in understanding southern tyrannosaurs distinct from northern ones.