Daspletosaurus is a genus of tyrannosaurid dinosaur that lived in Laramidia between about 78 and 74.4 million years ago, during the Late Cretaceous Period. The genus Daspletosaurus contains three named species. Fossils of the earlier type species, D. torosus, have been found in Alberta, while fossils of a later species, D. horneri, have been found only in Montana. D. wilsoni has been suggested as an intermediate species between D. torosus and D. horneri that evolved through anagenesis, but this theory has been disputed by other researchers.
Daspletosaurus
The D. torosus holotype specimen mounted at the Canadian Museum of Nature.
Originally believed to be a specimen of Gorgosaurus, this skull was later sold to the Field Museum and is now reassigned to Daspletosaurus torosus
Dinosaur Park specimen (FMNH PR308), mounted at the Field Museum
Tyrannosauridae is a family of coelurosaurian theropod dinosaurs that comprises two subfamilies containing up to thirteen genera, including the eponymous Tyrannosaurus. The exact number of genera is controversial, with some experts recognizing as few as three. All of these animals lived near the end of the Cretaceous Period and their fossils have been found only in North America and Asia.
Tyrannosauridae
Deinodon teeth, the earliest known tyrannosaurid remains
Teeth that have been assigned to Aublysodon at various times
Labelled Daspletosaurus skull
