Albertosaurus Osborn 1905

= Laelaps (in part)

= Dryptosaurus (in part)

= Deinodon (in part)

= Gorgosaurus Lambe 1914

Diagnosis: (Cranial) Premaxillary contacts nasal below external nares;lacrymal horn often better developed than in Tyrannosaurus, and the postorbital considerably smoother; posterior part of the dentary not as deep as in Tyrannosaurus . (Postcranial) Wrist composed of five elements. Postacetabular blade of ilium deep,and pubic shaft straight.