Classification of Holtz, Jr. 2001

Fm. †Tyrannosauridae Osborn 1906 [tyrannosaurid]
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Subfm. †Aublysodontinae Nopcsa 1928
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G. †Alectrosaurus Gilmore 1933
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Alectrosaurus olseni Gilmore 1933
G. †Aublysodon Leidy 1868
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Aublysodon mirandus Leidy 1868
Aublysodon molnaris Paul 1988
Subfm. †Tyrannosaurinae Matthew and Brown 1922 [tyrannosaurine]
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G. †Albertosaurus Osborn 1905 [Alberta lizard]
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G. †Alioramus Kurzanov 1976
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Alioramus remotus Kurzanov 1976
G. †Daspletosaurus Russell 1970
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Daspletosaurus torosus Russell 1970
G. †Gorgosaurus Lambe 1914
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Gorgosaurus libratus Lambe 1914
G. †Shanshanosaurus Dong 1977
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G. †Tyrannosaurus Osborn 1905 [tyrant lizard]
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Tyrannosaurus bataar Maleev 1955
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Invalid names: Gorgosaurus lancinator Maleev 1955 [synonym], Maleevosaurus novojilovi Maleev 1955 [synonym], Tarbosaurus efremovi Maleev 1955 [synonym]
Tyrannosaurus rex Osborn 1905 [tyrant lizard king]
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Invalid names: Nanotyrannus lancensis Gilmore 1946 [synonym]
Invalid names: Maleevosaurus Carpenter 1992 [synonym], Nanotyrannus Bakker et al. 1988 [synonym], Tarbosaurus Maleev 1955 [synonym]
G. †Siamotyrannus Buffetaut et al. 1996 [Siam tyrant]
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Siamotyrannus isanensis Buffetaut et al. 1996