remains belonging to a species of Tyrannosaurus. See also Timeline of tyrannosaur research References External links Tyrannosaurids Campanian life Campanian genus extinctions Campanian genus first appearances Late Cretaceous dinosaurs of North America Cretaceous Canada Fossils of Canada Paleontology in Alberta Cretaceous United States Fossils of the United States Paleontology in Montana Fossil taxa described in 1914 Taxa named by Lawrence Lambe