 Gorgosaurus teeth were typical of all known tyrannosaurids . The eight premaxillary teeth at the front of the snout were smaller than the rest , closely packed and D @-@ shaped in cross section . In Gorgosaurus , the first tooth in the maxilla was also shaped like the premaxillary teeth . The rest of the teeth were oval in cross section , rather than blade @-@ like as in most other theropods . Along with the eight premaxillary teeth , Gorgosaurus had 26 to 30 maxillary teeth and 30 to 34 teeth in the dentary bones of the lower jaw . This number of teeth is similar to Albertosaurus and Daspletosaurus but is fewer than those of Tarbosaurus or Tyrannosaurus . 
