{{automatic taxobox
| image = Tyrannosaurus Rex Holotype.jpg
| image_width = 250px
| image_caption = Reconstruction o the [[Biological teep|teep]] specimen (CM 9380) o the Tyrannosaurus at the [[Carnegie Museum o Naitural History]]
| display parents = 2
| parent_authority = [[Henry Fairfield Osborn|Osborn]], 1906
| authority = Osborn, 1905
| type_species = {{extinct}}'''''Tyrannosaurus rex'''''
| type_species_authority = Osborn, 1905
| synonyms =
{{collapsible list|bullets = true
 |title=<small>Genus synonymy</small>
|'''''Manospondylus''''' <br><small>[[Edward Drinker Cope|Cope]], 1892</small>
|'''''Dynamosaurus''''' <br><small>Osborn, 1905</small>
|''[[Nanotyrannus]]''? <br><small>[[Robert T. Bakker|Bakker]], Williams & [[Phil Currie|Currie]], 1988</small>
|'''''Stygivenator''''' <br><small>[[George Olshevsky|Olshevsky]], 1995</small>
|'''''Dinotyrannus''''' <br><small>[[George Olshevsky|Olshevsky]], 1995</small>
}}
{{collapsible list|bullets = true
 |title=<small>Species synonymy</small>
|'''''Manospondylus gigas''''' <br><small>[[Edward Drinker Cope|Cope]], 1892</small>
|''[[Aublysodon amplus]]''? <br><small>[[Othniel Charles Marsh|Marsh]], 1892</small>
|''[[Deinodon amplus]]''? <br><small>(Marsh, 1892)</small>
|''[[Manospondylus amplus]]''? <br><small>(Marsh, 1892)</small>
|''[[Stygivenator amplus]]''? <br><small>(Marsh, 1892)</small>
|''[[Tyrannosaurus amplus]]''? <br><small>(Marsh, 1892)</small>
|''[[Aublysodon cristatus]]''? <br><small>Marsh, 1892</small>
|''[[Deinodon cristatus]]''? <br><small>(Marsh, 1892)</small>
|''[[Stygivenator cristatus]]''? <br><small>(Marsh, 1892)</small>
|'''''Dynamosaurus imperiosus''''' <br><small>Osborn, 1905</small>
|'''''Tyrannosaurus imperiosus''''' <br><small>(Osborn, 1905)</small>
|''[[Gorgosaurus lancensis]]''? <br><small>Gilmore, 1946</small>
|''[[Albertosaurus lancensis]]''? <br><small>(Gilmore, 1946)</small>
|''[[Aublysodon lancensis]]''? <br><small>(Gilmore, 1946)</small>
|''[[Deinodon lancensis]]''? <br><small>(Gilmore, 1946)</small>
|''[[Nanotyrannus lancensis]]''? <br><small>(Gilmore, 1946)</small>
|'''''Stygivenator molnari''''' <br><small>(Paul, 1988)</small>
|'''''Dinotyrannus megagracilis''''' <br><small>[[George Olshevsky|Olshevsky]], 1995</small>
}}
}}
'''''Tyrannosaurus''''' ({{IPAc-en|t|ᵻ|ˌ|r|æ|n|ə|ˈ|s|ɔː|r|ə|s|,_|t|aɪ|-}}, meanin "tyrant lizard", frae the [[Ancient Greek]] ''tyrannos'' (τύραννος), "tyrant", an ''sauros'' (σαῦρος), "lizard"<ref name=OnlineEtDict>{{cite web |title=Tyrannosaurus |publisher=[[Online Etymology Dictionary]] |url=http://www.etymonline.com/index.php?term=tyrannosaurus&allowed_in_frame=0}}</ref>) is a [[genus]] o [[coelurosaur]]ian [[theropoda|theropod]] [[dinosaur]]. The [[species]] '''''Tyrannosaurus rex''''' (''rex'' meanin "king" in [[Latin]]), is ane o the maist well-represented o the lairge theropods. ''Tyrannosaurus'' lived throughout what is nou wastren North Americae, on what wis then an island continent kent as [[Laramidia]]. ''Tyrannosaurus'' haed a much wider range than ither [[Tyrannosauridae|tyrannosaurids]]. Fossils are foond in a variety o [[geologic formation|rock formations]] datin tae the [[Maastrichtian]] age o the upper [[Cretaceous]] [[Period (geology)|Period]], 68 tae 66&nbsp;[[mya (unit)|million years ago]].<ref name=hellcreekage>{{cite journal |last1=Hicks |first1=J. F. |last2=Johnson |first2=K. R. |last3=Obradovich |first3=J. D. |last4=Tauxe |first4=L. |last5=Clark |first5=D. |date=2002 |title=Magnetostratigraphy and geochronology of the Hell Creek and basal Fort Union Formations of southwestern North Dakota and a recalibration of the Cretaceous–Tertiary Boundary |journal=Geological Society of America Special Papers |doi=10.1130/0-8137-2361-2.35 |volume=361 |pages=35–55 |url=http://specialpapers.gsapubs.org/content/361/35.full.pdf |format=PDF|isbn=0-8137-2361-2 }}</ref> It wis the last kent member o the [[Tyrannosauridae|tyrannosaurids]],<ref>{{cite web |last=DiChristina |first=Mariette |date=Apr 14, 2015 |title=Rise of the Tyrants |url=http://www.scientificamerican.com/article/rise-of-the-tyrants |quote=...&nbsp;was merely the last survivor of a startling variety of tyrannosaurs that lived across the globe right up until the asteroid impact 66 million years ago&nbsp;...}}</ref> an amang the last non-[[aves|avian]] dinosaurs tae exist afore the [[Cretaceous–Paleogene extinction]].