After Holtz, 2000, and Carr, Williamson & Schwimmer, 2005

<==o †Tyrannosauroidea Osborn, 1906 sensu Holtz, 2000 [=Deinodontoidea]
   |-- †Guanlong wucaii Xu, Clark, Forster, Norell, Erickson, Eberth, Jia & Zhao, 2006
   `--+-- †Dilong paradoxus Xu, Norell, Kuang, Wang, Zhao & Jia, 2004
      `--+-- †Eotyrannus lengi Hutt, Naish, Martill, Barker & Newbery, 2001
         `--+?- †Siamotyrannus isanensis Buffetaut, Suteethorn, & Tong, 1996
            |?- †Labocania anomola Molnar, 1974
            |--+?- †Stokesosaurus clevelandi Madsen, 1974
            |  `?- †Itemirus medullaris Kurzanov, 1976a
            `--+?- †Dryptosaurus aquilungis (Cope, 1866) [Lealaps aquilungis Cope, 1866]
               `--+?- †Appalachiosaurus montgomeriensis Carr, Williamson & Schwimmer, 2005
                  `--o †Tyrannosauridae Osborn, 1905 [=? Deinodontidae Leidy, 1856]
                     |?- †Tyrannosauridae genera et species indet. from New Mexico [possibly abelisaurid]
                     |--o †Aublysodontinae [probably presents juveline forms of the larger tyrannosaurines]
                     |  |?- †Aublysodontinae genera et species indet. [Kirtland Shale aublysodontine]
                     |  |-- †Aublysodon mirandis Leidy, 1868b
                     |  |-- †Alectrosaurus olseni Gilmore, 1933a
                     |  `?-o †Stygivenator [Aublysodon]
                     |     |-- †S. amplus (Marsh, 1892d) [Aublysodon amplus Marsh, 1892d]
                     |     |-- †S. cristatus (Marsh, 1892d) [Aublysodon cristatus Marsh, 1892d]
                     |     `-- †S. molnari [Aublysodon molnari]
                     `--o †Tyrannosaurinae Osborn, 1905 [=? Deinodontinae Leidy, 1856]
                        |?- †Tyrannosaurinae genera et species indet. [Two Medicine tyrannosaurine]
                        |-- †Alioramus remotus Kurzanov, 1976b
                        `--+?- †Shanshanosaurus huoyanshensis Dong, 1977
                           `--+-- †Albertosaurus sarcophagus Osborn, 1905 [?Deinodon, Leidy, 1856, Albertosaurus arctunguis Parks, 1928] 
                              |-- †Gorgosaurus libratus Lambe, 1914c [Albertosaurus libratus Lambe, 1914c, Lealaps incrassatus Cope, 1876a, ?Deinodon horridus Leidy, 1856, ?Lealaps faculus Cope, 1876a, ?Lealaps hazenianus Cope, 1876b, ?Dryptosaurus kenabekides Hay, 1899, ?Gorgosaurus sternbergi Matthew & Brown, 1923, a juveline form]
                              `--o ?†Tyrannosaurini Osborn, 1905
                                 |-- †Daspletosaurus torosus Russell, 1970a (“härkätyrannisaurus”)
                                 `--+-- †Tarbosaurus bataar (Maleev, 1955b) [taxonomic history] (“mongoliantyrannosaurus”)
                                    `-- †Tyrannosaurus rex Osborn, 1905 [taxonomic history] (“kuningastyrannisaurus”)

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