Gorgosaurus is a genus of tyrannosaurid theropod dinosaur that lived in western North America during the Late Cretaceous Period, between about 76.5 and 73 million years ago. Fossil remains have been f
Type specimen of Gorgosaurus sternbergi (AMNH 5664), now recognized as a juvenile Gorgosaurus libratus
Specimen USNM 12814 (formerly AMNH 5428)
Tyrannosaurinae is one of the two extinct subfamilies of Tyrannosauridae, a family of coelurosaurian theropods that consists of at least three tribes and several genera. All fossils of these genera ha
Alioramus remotus Skull
Tyrannosaurus rex theropod dinosaur 2
Deinodon teeth, the earliest known tyrannosaurid remains