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|Time period = Late [[Cretaceous]]
 
|Time period = Late [[Cretaceous]]
 
|Primary diet = Carnivore
 
|Primary diet = Carnivore
|Fatalities caused = One ''[[Edmontosaurus]]''}}'''''Tyrannosaurus rex''''' <span style="font-family:arial,sans-serif;"> (or '''''T. rex '''''for short) was a species of large </span>theropod<span style="font-family:arial,sans-serif;"> </span>dinosaur<span style="font-family:arial,sans-serif;"> that lived </span><span style="font-family:arial,sans-serif;">during the very end of the late </span>Cretaceous<span style="font-family:arial,sans-serif;"> period.</span>
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|Fatalities caused = One ''[[Edmontosaurus]]''}}'''''Tyrannosaurus rex''''' <span style="font-family:arial,sans-serif;"> (or '''''T. rex '''''for short) was a species of large </span>theropod<span style="font-family:arial,sans-serif;"> </span>dinosaur<span style="font-family:arial,sans-serif;"> that lived </span><span style="font-family:arial,sans-serif;">during the end of the Late </span>Cretaceous<span style="font-family:arial,sans-serif;"> period.</span>
 
==Facts==
 
==Facts==
''T. rex''<span style="font-family:arial,sans-serif;"> was the 4th largest land predator ever at 13 meters (43 ft) long and 7 tons.</span><span style="font-family:arial,sans-serif;"> </span>''Carcharodontosaurus, Giganotosaurus'',<span style="font-family:arial,sans-serif;">and </span>''Spinosaurus''<span style="font-family:Helvetica,Arial,sans-serif;"> </span><span style="font-family:arial,sans-serif;">were all bigger. </span><span style="font-family:arial,sans-serif;">Evidence has been found though that </span>''Tyrannosaurus rexes''<span style="font-family:arial,sans-serif;"> often fed on ''ceratopsids''. It is now clear that </span>''T. rex''<span style="font-family:arial,sans-serif;"> is both a predator and a scavenger. They were also potential cannibals, eating their own kind.</span>
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''Tyrannosaurus''<span style="font-family:arial,sans-serif;"> was among the largest terrestrial predators to ever walk the earth, reaching lengths of up to 13 meters (43 feet) and weighing in excess of 7 tons; few carnivorous dinosaurs matched it in size.</span><span style="font-family:arial,sans-serif;"> </span><span style="font-family:arial,sans-serif;">Evidence shows that tyrannosaurus </span><span style="font-family:arial,sans-serif;">often fed on large herbivores such as Edmontosaurus and Triceratops, being the apex predator of its environment. They were likely opportunistic carnivores, both actively hunting live prey and scavenging from already dead animals</span><span style="font-family:arial,sans-serif;">. It is also believed that they may have at times been cannibalistic, eating others of their own kind.</span>
   
 
In most media and film or television subtitles, the dinosaur is often referred to as “''T-Rex“ ''or “''T. Rex''.“ Michael Crichton, the author of the ''Jurassic Park novels'', referred to it as “Tyrannosaurus Rex”, or “T-Rex” for short in his famous works of literature. Despite its popularity, this spelling is wrong. Dinosaur names are created according to the rules of the binomial nomenclature. Binomial names consist of two parts. ''Tyrannosaurus'' is the genus name, while ''rex'' is the species name. Genus names must be written with a capital letter, while the species name is not. In many cases, mostly with the longer names, it is shortened. In such cases, only the first letter of the genus name is written; that letter is then followed by a period, not a "-". All binomial nomenclatural taxon should be written in italics. Therefore then, the taxa should be written like this: ''Tyrannosaurus rex, ''or for short: ''T. rex''.
Michael Crichton, the author of the novel version of ''Jurassic Park'', called the creature '''''Tyrannosaurus Rex''''', or for short '''''T-Rex'''''. In most media and film or television subtitles, the creature is called ''T-Rex ''or ''T. Rex''.
 
   
 
==[[When Dinosaurs Roamed America]]==
However popular, this spelling is wrong. Dinosaur names are created according to the rules of the Binomial nomenclature. Binomial names consist of two parts. ''Tyrannosaurus'' is the genus name, while ''rex'' is the species name. Genus names must be written with a capital letter but the species name don't. In many cases the (mostly long names) are shortened. In that case, only the first letter of the Genus name is written. That letter is followed by a period, not a "-". All binomial nomenclatural taxon should be written in italics.
 
 
Therefore, the taxa should be written like this: ''Tyrannosaurus rex'' or for short: ''T. rex''.
 
==In [[When Dinosaurs Roamed America]]==
 
 
[[File:Rex_face.jpg|thumb|left|250px|Tyrannosaurus rex ]]
 
[[File:Rex_face.jpg|thumb|left|250px|Tyrannosaurus rex ]]
In the late Cretaceous segment, ''Tyrannosaurus''<span style="font-family:arial,sans-serif;"> is first seen stalking some ''[[Triceratops |Triceratops]]'', ''[[Edmontosaurus]]'', and ''[[Ornithomimus]]''. Later, a young ''T. rex'' charges at a herd of ''Triceratops'' but the herd fend him off. He soon sees a ''[[Quetzalcoatlus |Quetzalcoatlus]]'' feeding on a ''Triceratops'' carcass. The prince soon chases the pterosaur to hunt him, but the ''Quetzalcoatlus'' escapes. He walks away and soon walks home in the dark, thanks to his night vison. We see a pack of ''T. rexes'' made of the prince's family. We see that the mom that has a twisted ankle, but when the kids are play-fighting, 1 of them hits her ankle, making her roar in pain. Then the pack leave. The next morning, the pack of ''T. rexes'' is hunting the herd of ''Edmontosaurus''. The prince chases them into the trap with his two larger siblings coming out, surprising 2 ''Edmontosaurus''. Soon the mother attacks and kills 1 of the hadrosaurs. She roars into the air in victory. While eating, she sees an asteriod coming to the earth. It hits the earth, causing the ''Tyrannosaurus rexes'' to ditch their kill. Lastly, after the extinction, some mammals called ''[[Purgatorius]]'' crawl on a ''T. rex'' skull. </span>
+
In the late Cretaceous segment, a juvenile ''Tyrannosaurus''<span style="font-family:arial,sans-serif;"> is first seen stalking groups of ''[[Edmontosaurus]]'', ''[[Ornithomimus]]'' and ''[[Triceratops |Triceratops.]] ''Later, the young ''T. rex'' charges at a herd of ''Triceratops,'' but the herd easily fends the inexperienced youngster him off; he then attempts to chase down a ''[[Quetzalcoatlus |Quetzalcoatlus]]'' feeding on a ''Triceratops'' carcass, but the pterosaur escapes. The tyrant prince eventually makes his way home, walking through the forest at night and returning to his family. The pack of tyrannosaurs consists of two parents; one father and a larger mother whom’s leg has been crippled by a painful injury, along with the juvenile and his sibling. Amidst the playful sparring of the two, they accidentally hit their mother’s wounded leg, prompting her to roar out in pain as the two then flee; shortly after, the tyrants all leave the nest, preparing for tomorrow’s hunt. The next morning, the Tyrannosaurus pack attacks the Edmontosaurus herd; the youngest first gives chase, herding them into a trap as his larger sibling then joins the fray, surprising the three hadrosaurs they‘ve separated from the fleeing herd. They manage to split one individual from the other two, leading it directly into the jaws of their mother, who ambushes the Edmontosaurus and successfully brings it down with ease with a victorious roar. Later in the evening, as the tyrants feed on their kill, the mother looks up into the sky to see an asteroid heading towards the planet. As it strikes the earth and the world around them is set ablaze, the ''Tyrannosaurus abandon the Edmontosaurus carcass and flee. Unfortunately, even the Tyrant Lizard King is no match for the destructive power of the asteroid, joining its fellow non-avian dinosaurs in extinction. Finally, as the chaos fades and the dust settles, a group of'' ''[[Purgatorius]]'' are seen crawling onto the skull of a T. rex, signifying the end of the reign of the dinosaurs and a new beginning for Planet Earth,</span>
   
  +
===Scientific Inaccuracies===
==Trivia==
 
  +
*The female Tyrannosaurus is depicted as being significantly larger than her mate, a theory that is currently unsupported by scientific evidence.
[[File:27812.jpg|thumb|270px|T. rex with a dead [[Edmontosaurus]] ]]
 
  +
*Contrary to popular belief, it is unlikely that Tyrannosaurus rex was feathered. It was believed for some time that the dinosaur’s scaled appearance in the documentary was inaccurate, but recent evidence shows that it is likely correct.
*It is the most famous and popular of all the dinosaurs,<span style="font-family:Helvetica,Arial,sans-serif;"> </span> known for it's cultural impact, even more than ''Brontosaurus''(who is now its' own genus again).
 
  +
*''Tyrannosaurus‘ hands at times appear to facing down, pronated, a common error perpetuated by media such as Jurassic Park and Walking With Dinosaurs. All theropods are believed to have inward-facing hands, often likened to a clapping position; ''they could not pivot their hands either.
*It is also called the King of the Dinosaurs (in fact its species name ''Rex'' means "King" in Latin).
 
  +
* Recent evidence shows that ''Tyrannosaurus'' likely had lips that concealed its lips akin to those of a lizard, although this is still a point of debate among paleontologists to this day.
*Most footage of ''T. rex'' from [http://en.wikipedia.org/wiki/Valley_of_the_T-Rex Valley of the ''T. rex''] is used from ''When Dinosaurs Roamed America''.
 
  +
* ''Tyrannosaurus'' most likely did not make mammalian roaring sounds but rather deep booming sounds like large ratites such as cassowaries and emus, as well as low frequency sounds.
  +
* Tyrannosaurus was shown as a pack hunting animal, again another once popular theory that currently holds no ground. There is currently no strong evidence for group hunting in tyrannosaurs.
   
==Errors==
+
===Trivia===
 
[[File:27812.jpg|thumb|270px|Mother T. rex with a dead [[Edmontosaurus]] ]]
*Evidence that females were bigger than males isn't solid anymore.
 
  +
*It is among the most famous of all the dinosaur clan, known for its strong presence in pop culture alongside similarly popular dinosaurs such as Stegosaurus and Triceratops.
*They are depicted featherless. In reality, they probably had feathers when they were very young. Although there are no really young ''T. rexes'' in this program, the juveniles should have been at least been molting their feathers off.
 
  +
*Its name translates to “Tyrant Lizard King” in Latin, hence its longtime reputation as the fearsome King of the Dinosaurs.
*''Tyrannosaurus's'' hands should be facing inwards, not downwards. Also they couldn't pivot without breaking them. The pivot error is seen when we meet ''T. rex''.
 
  +
*Stock footage of the Tyrannosaurus from When Dinosaurs Roamed America is used in [http://en.wikipedia.org/wiki/Valley_of_the_T-Rex Valley of the ''T. rex'']'' which itself seemingly had its own T. rex model retooled for Dinosaur Planet, which also uses the same footage.''
<nowiki>*</nowiki>Recent studies showed ''Tyrannosaurus'' had strong lips. Also ''Tyrannosaurus'' probably did not roar but probably coos.
 
* Tyrannosaurus was shown a little less Bulkie then in reality
 
   
==Gallery==
+
===Gallery===
 
<gallery>
 
<gallery>
 
Noarticletext.png|T. rex roaring
 
Noarticletext.png|T. rex roaring
 
Rex staring.jpg
 
Rex staring.jpg
T. rex poster.jpg|T. rex poster for [[When Dinosaurs Roamed America]]
+
T. rex poster.jpg|T. rex poster for ''[[When Dinosaurs Roamed America]]''
 
T. rex hunting.jpg
 
T. rex hunting.jpg
 
T. rex chase.jpg|T. rex hunting [[Edmontosaurus]]
 
T. rex chase.jpg|T. rex hunting [[Edmontosaurus]]
 
Tyrannosaurus about to roar.jpg
 
Tyrannosaurus about to roar.jpg
 
</gallery>
 
</gallery>
  +
[[Category:When Dinosaurs Roamed America creatures]]
 
[[Category:Dinosaurs]]
 
[[Category:Theropod dinosaurs]]
 
[[Category:Theropod dinosaurs]]
[[Category:Carnivorous dinosaurs]]
+
[[Category:Creatures from the Late Cretaceous]]
[[Category:Dinosaurs]]
+
[[Category:Carnivores]]
[[Category:Cretaceous animals]]
 

Revision as of 16:42, 8 October 2019

T. rex poster
Creature information
Scientific name : Tyrannosaurus rex
Time period : Late Cretaceous
Primary diet : Carnivore
In the documentary
Fatalities caused : One Edmontosaurus

Tyrannosaurus rex (or T. rex for short) was a species of large theropod dinosaur that lived during the end of the Late Cretaceous period.

Facts

Tyrannosaurus was among the largest terrestrial predators to ever walk the earth, reaching lengths of up to 13 meters (43 feet) and weighing in excess of 7 tons; few carnivorous dinosaurs matched it in size. Evidence shows that tyrannosaurus often fed on large herbivores such as Edmontosaurus and Triceratops, being the apex predator of its environment. They were likely opportunistic carnivores, both actively hunting live prey and scavenging from already dead animals. It is also believed that they may have at times been cannibalistic, eating others of their own kind.

In most media and film or television subtitles, the dinosaur is often referred to as “T-Rex“ or “T. Rex.“ Michael Crichton, the author of the Jurassic Park novels, referred to it as “Tyrannosaurus Rex”, or “T-Rex” for short in his famous works of literature. Despite its popularity, this spelling is wrong. Dinosaur names are created according to the rules of the binomial nomenclature. Binomial names consist of two parts. Tyrannosaurus is the genus name, while rex is the species name. Genus names must be written with a capital letter, while the species name is not. In many cases, mostly with the longer names, it is shortened. In such cases, only the first letter of the genus name is written; that letter is then followed by a period, not a "-". All binomial nomenclatural taxon should be written in italics. Therefore then, the taxa should be written like this: Tyrannosaurus rex, or for short: T. rex.

When Dinosaurs Roamed America

Rex face

Tyrannosaurus rex

In the late Cretaceous segment, a juvenile Tyrannosaurus is first seen stalking groups of Edmontosaurus, Ornithomimus and Triceratops. Later, the young T. rex charges at a herd of Triceratops, but the herd easily fends the inexperienced youngster him off; he then attempts to chase down a Quetzalcoatlus feeding on a Triceratops carcass, but the pterosaur escapes. The tyrant prince eventually makes his way home, walking through the forest at night and returning to his family. The pack of tyrannosaurs consists of two parents; one father and a larger mother whom’s leg has been crippled by a painful injury, along with the juvenile and his sibling. Amidst the playful sparring of the two, they accidentally hit their mother’s wounded leg, prompting her to roar out in pain as the two then flee; shortly after, the tyrants all leave the nest, preparing for tomorrow’s hunt. The next morning, the Tyrannosaurus pack attacks the Edmontosaurus herd; the youngest first gives chase, herding them into a trap as his larger sibling then joins the fray, surprising the three hadrosaurs they‘ve separated from the fleeing herd. They manage to split one individual from the other two, leading it directly into the jaws of their mother, who ambushes the Edmontosaurus and successfully brings it down with ease with a victorious roar. Later in the evening, as the tyrants feed on their kill, the mother looks up into the sky to see an asteroid heading towards the planet. As it strikes the earth and the world around them is set ablaze, the Tyrannosaurus abandon the Edmontosaurus carcass and flee. Unfortunately, even the Tyrant Lizard King is no match for the destructive power of the asteroid, joining its fellow non-avian dinosaurs in extinction. Finally, as the chaos fades and the dust settles, a group of Purgatorius are seen crawling onto the skull of a T. rex, signifying the end of the reign of the dinosaurs and a new beginning for Planet Earth,

Scientific Inaccuracies

  • The female Tyrannosaurus is depicted as being significantly larger than her mate, a theory that is currently unsupported by scientific evidence.
  • Contrary to popular belief, it is unlikely that Tyrannosaurus rex was feathered. It was believed for some time that the dinosaur’s scaled appearance in the documentary was inaccurate, but recent evidence shows that it is likely correct.
  • Tyrannosaurus‘ hands at times appear to facing down, pronated, a common error perpetuated by media such as Jurassic Park and Walking With Dinosaurs. All theropods are believed to have inward-facing hands, often likened to a clapping position; they could not pivot their hands either.
  • Recent evidence shows that Tyrannosaurus likely had lips that concealed its lips akin to those of a lizard, although this is still a point of debate among paleontologists to this day.
  • Tyrannosaurus most likely did not make mammalian roaring sounds but rather deep booming sounds like large ratites such as cassowaries and emus, as well as low frequency sounds.
  • Tyrannosaurus was shown as a pack hunting animal, again another once popular theory that currently holds no ground. There is currently no strong evidence for group hunting in tyrannosaurs.

Trivia

27812

Mother T. rex with a dead Edmontosaurus

  • It is among the most famous of all the dinosaur clan, known for its strong presence in pop culture alongside similarly popular dinosaurs such as Stegosaurus and Triceratops.
  • Its name translates to “Tyrant Lizard King” in Latin, hence its longtime reputation as the fearsome King of the Dinosaurs.
  • Stock footage of the Tyrannosaurus from When Dinosaurs Roamed America is used in Valley of the T. rex which itself seemingly had its own T. rex model retooled for Dinosaur Planet, which also uses the same footage.

Gallery