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Tyrannosaurus rex

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Tyrannosaurus rex skull

Tyrannosaurus rex skull.

Tyrannosaurus rex was a carnivorous theropod dinosaur indigenous to planet Earth millions of years ago during the Cretaceous period. They were infamous as fearsome predators.


Tyrannosaurus rex was bipedal with a large head, tiny forelimbs and a long tail. Adults ranged from around 9.1-15.2 meters long with legs up to three meter long, and weighed in excess of five tons. They had yellow eyes, a strong sense of smell and a loud, gutteral roar. (TOS novel: First Frontier)

Notable examplesEdit

An Enterprise landing party encountered a Tyrannosaurus rex family during a mission to prehistoric Earth. The largest Tyrannosaur attacked a titanosaur, severely wounding it but was injured itself and couldn't immediately chase the fleeing sauropod. Instead, it used its powerful sense of smell to track the titanosaur shortly afterwards, followed by a smaller adult tyrannosaur and a young one. (TOS novel: First Frontier)

In 2367, Doctor Noonien Soong had the fossilised skull of a Tyrannosaurus rex in his laboratory on Terlina III. (TNG episode: "Brothers")

In the year 21,436,000, a Tyrannosaurus rex was part of the Collector Preserve. It was assimilated by the Borg during an attack on the Preserve by the Federation Temporal Intervention Agency and, in turn, attempted to assimilate an alternate timeline version of Timot Danlen. (DTI novel: The Collectors)

References and comparisonsEdit

The Gorn, Neon's species and the natives of Oblik III resembled tyrannosaurs. (TOS novelization: Arena, TOS novels: Dreadnought!, The Entropy Effect, TOS comic: "Dinosaur Planet")

Ruth Rigel once described a tigrex as being as big as a Tyrannosaurus rex and twice as mean. (TOS novel: Death's Angel)

Le-matyas were also described as being the size of Tyrannosaurus rex. (TOS novel: Triangle)

James T. Kirk, while observing a V'asumi match between Spock and Savaj, in which both used their full Vulcan strength, thought that ordering them to stop would be like ordering Tyrannosauri rex to cease hostilities. (TOS novel: The Prometheus Design)

Kirk once called Vaal "that goddamned tyrannosaur head with the horn on top". (TOS novel: From the Depths)



Earth dinosaurs and pterosaurs
Genus and species AlamosaurusAnatotitanAnkylosaurusApatosaurusBrontosaurusDeinonychusPachycephalosaurPentaceratopsPterodactylStegosaurusThescelosaurusTorosaurusTriceratopsTroodonTyrannosaurus rexUtahraptorVelociraptor
Order and family archosaurbrachiosaurceratopsiddromaeosaurhadrosaurornithischiapterosaursauropodtheropodtitanosaur

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