Fig. 12 in A new tyrannosaurine (Theropoda:Tyrannosauridae) from the Campanian Foremost Formation of Alberta, Canada, provides insight into the evolution and biogeography of tyrannosaurids

Fig. 12. Paleogeographic distribution of tyrannosaurids across western North America during the Campanian. Tyrannosaurid clades appear to be separated into northern and southern assemblages. Albertosaurinae and Daspletosaurini demonstrate finer scale geographic segregation, where the former is more common further north in southcentral Alberta and the latter in southernmost Alberta and northern Montana. Modified map used with permission from Colorado Plateau Geosystems Inc.Published as part of Voris, Jared T., Therrien, François, Zelenitsky, Darla K. & Brown, Caleb M., 2020, A new tyrannosaurine (Theropoda:Tyrannosauridae) from the Campanian Foremost Formation of Alberta, Canada, provides insight into the evolution and biogeography of tyrannosaurids, pp. 1-15 in Cretaceous Research 110 (104388) on page 13, DOI: 10.1016/j.cretres.2020.104388, http://zenodo.org/record/367200