The taxonomics of the diverse, lithe basal eutyrannosaur genera and species of late Maastrichtian western North America
Franco Sancarlo, Gregory S. Paul
This paper re-evaluates the taxonomy of late Maastrichtian tyrannosaurs in western North America, rejecting ontogenetic metamorphosis and identifying new basal eutyrannosaur taxa.
bioRxiv · Feb 26, 2026 · PreprintPaleontology