tyrannosaur

American  

[ti-ran-uh-sawr, tahy-] / tɪˈræn əˌsɔr, taɪ- /

noun

1. a large, carnivorous dinosaur, Tyrannosaurus rex, from the Late Cretaceous Epoch of North America, that walked erect on its hind feet.

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tyrannosaur Scientific  

/ tĭ-răn′ə-sôr′ /

1. Any of various very large carnivorous dinosaurs of the genus Tyrannosaurus and related genera of the Cretaceous Period. Tyrannosaurs had very small forelimbs and a large head with sharp teeth. They walked on two legs, probably bent forward with their long tail stretched out as a counterbalance. Tyrannosaurs were theropods and probably distantly related to birds. The largest species, T. rex, grew to lengths of 14.3 m (47 ft) or more and may have been the largest land predator that ever lived.

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Etymology

Origin of tyrannosaur

< New Latin Tyrannosaurus (1905), equivalent to Greek tyranno- (combining form representing týrannos tyrant ) + saûros -saur

Example Sentences

The research shows that Nanotyrannus was nearly fully grown and not a juvenile T. rex, while also offering new clues about how large tyrannosaur species achieved rapid growth.

From Science Daily

A remarkably complete tyrannosaur skeleton has brought new clarity to one of paleontology's longest debates: whether Nanotyrannus was its own species or merely a young Tyrannosaurus rex.

From Science Daily

"It has helped us revise the tyrannosaur family tree and rewrite what we know about the evolution of tyrannosaurs," she added.

From BBC

It's the first time tyrannosaurs have been identified in sediments of this age and region.

From Science Daily

A new analysis of fossils believed to be juveniles of T. rex now shows they were adults of a small tyrannosaur, with narrower jaws, longer legs, and bigger arms than T. rex.

From Science Daily