Tyrannosaurus rex

"The worst of the lot, a brute named Tyrannosaurus Rex, was probably the meanest killer that ever roamed the earth."

- Deems Taylor Tyrannosaurus Rex (or T-Rex), whose name means "tyrant lizard king", is a species of predatory theropod dinosaur that lived in the Late Cretaceous period around 65 million years ago.

One appeared as the main antagonist in The Rite of Spring segment of the 1940 Disney animated feature film Fantasia and has been featured in numerous other Disney properties.

Physical Description
The Tyrannosaurus was portrayed as a huge dark-blue carnivorous dinosaur with a big square head and a mouth full of long, razor-sharp teeth. The one in Fantasia is incorrectly shown with three fingers, while the actual dinosaur only had two. Walt Disney himself knew that the real Tyrannosaurus had only two fingers, but thought a three-fingered portrayal would look scarier. In other appearances, Tyrannosaurus is often red, green, brown, purple, blue, orange, gray or black and is portrayed (correctly) with two fingers.

Fantasia
The Tyrannosaurus makes his first appearance as he attacks the dinosaurs of the lowlands. They all stare in horror in his general direction as rain begins to fall and lightning crackles when the massive theropod enters the scene. They immediately continue to retreat in fear as the Tyrannosaurus marches forward, snapping his jaws at anything that moves. While many of the smaller dinosaurs are able to retreat out of the hungry theropod's path, the Stegosaurus is unable to move away fast enough and is quickly targeted. The Tyrannosaurus latches his brawny jaws around the Stegosaurus' tail just above the spikes, dragging his heels into the mud and bringing the lumbering dinosaur's retreat to a suspenseful halt. The Stegosaurus faces his attacker who roars violently and quickly goes for the neck with his thick square jaws. In defense, the Stegosaurus lashes out with his spiked tail, trying desperately to keep the hungry theropod at bay. After a few brief lash outs and defensive volleys by the two titans, they begin to slowly sidestep each other. A short yet vicious battle follows and the Stegosaurus is quickly unable to stay on his feet as the Tyrannosaurus time and time again goes for the neck, fighting hard against the defending tail spikes of his prey. With the battle won and his prey fallen, the Tyrannosaurus lets out a mighty roars in victory as the other dinosaurs watch. With the struggle over and the predator satisfied, the other dinosaurs return to their business as the Tyrannosaurus gorges on his prize.

Near the end of the segment, the Tyrannosaurus makes an appearance just before he dies. The once mighty ruler of the Cretaceous succumbs to mass dehydration as the Earth's climate changes, visibly collapsing into the sand. Other dinosaurs, including a Parasaurolophus and a Ceratosaurus, pass the corpse and continue on into the hazed distance, a path that leads to nowhere but their own extinction.

He also makes a cameo in the sequel Fantasia 2000 in a flashback from the original film.

My Science Project
When Vince, Mike & Sherman enter the gymnasium, They heard weird sounds & see a Big hole in the wall appeared. Sherman notices the plants seemed prehistoric. Suddenly right out from the Huge hole of the Gym wall came a Tyrannosaurus Rex. The boys started to take cover, But Sherman's sneeze gave them away. The Dinosaur spotted them but Vince was the first to face the Tyrannosaurus by shooting at it. But the creature grabbed Vince & was about to devour him. Mike & Sherman started shooting at the Tyrannosaurus too to help they're friend. Sherman's gun was now jammed then he fainted after the creature roared. Mike kept on shooting at the dinosaur. Until the creature dropped Vince it turns toward Mike. But Mike had one more trick, He used the big gun & blasted the Tyrannosaurus at it's belly. Finally the dinosaur collapsed & died.

DuckTales
T-Rex appeared in Dinosaur Ducks, Time is Money - Part 1: Marking Time, Time is Money - Part 3: Bubba Trubba As Life Sized Statues & Skeletons Finally In Time is Money - Part 5: Ali Bubba's Cave Where a Mechanical T-Rex was set near a replica of Bubba's cave Scrooge McDuck built outside of his mansion.

Who Framed Roger Rabbit
At some point at the end of the movie, A head & neck silowet was seen in the ACME Factory when Eddie Valiant & Judge Doom were fighting. It's possible that the Silowet had to be a T-Rex.

Darkwing Duck
It appeared in Paraducks in a Cameo appearance, Jurassic Jumble as Life Sized Statues, The Quiverwing Quack as A Skeleton destroyed by some Dobermans, A Brush With Oblivion where Gosalyn's painting comes alive & Extinct Possibility Johnny T.Rex and his gang.

Bonkers
It appeared in Get Wacky as a living skeleton & in Cartoon Cornered The T-Rex from Fantasia make cameo appearance.

The Little Mermaid (TV series)
In the episode "Land of the Dinosaurs", Ariel finds frozen dinosaurs during a trip to the North Pole, and she thaws them with her father's trident. King Triton makes a refuge for them on land after some dinosaurs cause chaos. A T-Rex was among the species of dinosaurs that were causing havoc.

Aladdin (TV series)
A T-Rex served as main antagonist in the episode "Much Abu About Something".

Timon & Pumbaa (TV series)
A T-Rex was among the animals who stalked Timon in the episode "Timon...Alone". Like the others, it was scared away by Pumbaa.

Quack Pack
It appeared in two Episodes. In Pride Goeth Before the Fall Guy A T-Rex makes a Cameo while a Criminal was riding on it & In The Late Donald Duck the Tyrannosaurus chased Donald Duck from the Jungle to the North Pole.

Mighty Ducks (TV series)
In Jurassic Puck, A pair of T-Rexes are one of the Dinosaurs brought to life from a test tube in the Raptor by Lord Dragaunus himself. So he can turn Earth into a Saurian paradise & destroy Anaheim, and the Ducks with them.

101 Dalmatians: The Series
In Lucky to be Alone, There were two T-Rex toys in different sizes in Lucky's room & In The Life you save, There was a living T.REX Skeleton was terrorize the Dearly Farm. But Lucky stood forth the Living Bony Dinosaur. Lucky grabbed the left Femur Then the wrest of the Dinosaur collapsed. Lucky then said, "Bones for everyone." But in the end it was a dream.

The Legend of Tarzan
In Tarzan and the Hidden World, A female T-Rex appeared She attacked Tarzan, Jane, Samuel T. Philander and Professor Archimedes after the latter stole her egg.

Stanley (2001 series)
It appeared in two episodes: "Show-and-Tell Shark" and "Tyrannosaurus Wrecks". It also appeared in two full length specials: Stanley's Great Big Book of Everything Adventure and Stanley's Dinosaur Round-Up.

Pooh's Grand Adventure: The Search for Christopher Robin
A T-Rex, christened "Skullasaurus" by Pooh and the gang, can be heard roaring inside Skullasaurus Cave.

Lady and the Tramp II: Scamp's Adventure
Scamp discovers a Tyrannosaurus skeleton while digging for bones. Whether this is the same specimen or a completely different one is unknown.

Atlantis: The Lost Empire
8,000 Years after Atlantis disappeared into the sea. The year was 1914 a few T-Rex Skeleton specimens made cameos Inside the Smithsonian Institution with the other Dinosaur Skeletons. At one part of the Scene is where a car drives by then the inside of the Museum is seen & the other part is where Milo James Thatch was chasing after Mr. Fenton Harcourt out the revolving door to explain about the new evidence of Atlantis.

Lilo & Stitch
After Experiment 626 AKA Stitch escaped, Pleakly pulled out his view master to the Grand Councilwoman & showed her the inhabitants of earth. There at the second image, A T-Rex was seen looking at an asteroid that hit the planet.

Lilo & Stitch: The Series
In the episode "Retro", a Tyrannosaurus Rex reincarnated by Experiment 210 (Retro) appears at the end.

Meet the Robinsons
In the Movie one T-Rex named Tiny appeared.

Phineas and Ferb
A brown Tyrannosaurus Rex was the main antagonist in the episode "It's About Time!" When Phineas, Ferb and Candace were trapped in the Mesozoic era, a T-Rex chased them. They eventually lost it, but it found them again. When they were back in the present at the museum, the T-Rex accidentally came with them. It then attempted to attack Candace, but Doofenshmirtz's Freezeanator hit it and froze it. When the T-Rex is chasing Candace, the theme from the Tyrannosaurus Rex, Grumpy, from the 1970s television show Land of the Lost can be heard. The T-Rex made a cameo in "Mom's Birthday" from a flashback. It made two more cameos in "Unfair Science Fair Redux (Another Story)" and "Phineas and Ferb's Quantum Boogaloo".

Gravity Falls
In the episode "Land Before Swine," a number of dinosaur species are seen trapped in tree sap in the abandoned mines in the forest. The summer heat causes the tree sap to melt, slowly releasing all the dinosaurs from the sap. A T-Rex was among the species of dinosaurs trapped in tree sap. It returned in the final episode "Weirdmageddon 3: Take Back The Falls," It was attached to the Shacktron's left arm, its head and arms freed to use as a weapon against Bill Cipher and his henchmaniacs. The Tyrannosaurus succeeds in ripping out Bill's eye while in combat with him, temporarily disabling the demon and allowing the rescue team to parachute past him to the Fearamid, but is prevented from fighting Bill further once Bill dismantles the rest of the Shacktron.

The Avengers: Earth's Mightiest Heroes
In "New Avengers" Spider-Man was seen being chassed by a T-Rex out in the streets of New York. Later Spider-Man trapped the creature in his web.

Ultimate Spider-Man
In "Blade" (Part 1), A T-Rex skeleton was seen When Spider-Man's team and Blade began to retrieve the second half from storage in a museum before Dracula can get to it. In "The Savage Spider-Man", Spider-Man travels to the Savage Land with Wolverine to find Ka-Zar. But were attacked by a T-Rex. Later after Spider-Man was injected by Kraven the Hunter's serum & became a Monster Spider, The T-Rex showed up again but was beaten unconsciously. In "Halloween Night at the Museum" Some of the Dinosaur Skeletons have been seen coming alive.

Hulk and the Agents of S.M.A.S.H.
It appeared in some episodes. Including Devil Dinosaur In "Savage Land", "Red Rover", "Spidey I blew up the dinosaur", "Days of Future Smash, Part 1 - The Dino Era" & "Days of Future Smash, Part 5 - The Tomorrow Smashers".

Avengers Assemble
It appeared In a couple episodes "Savages" & "The Timestone"

The Good Dinosaur
The Three Tyrannosaurus Rexes Butch (The Good Dinosaur) & his children Nash and Ramsey are the minor Protagonists of the Disney/PIXAR Film.

Disney Parks
Tyrannosaurus Rex is seen as the Disneyland train travels to the Primeval World diorama. In it, he is seen reenacting his battle from Fantasia.

In Walt Disney World's Downtown Disney, there is a restaurant known as T-Rex Cafe, featuring a large Tyrannosaurus with his young.

In Walt Disney World's Epcot, there is a ride known as Ellen's Energy Adventure, starring Ellen DeGeneres and Bill Nye the Science Guy who explore the world of energy, including the use of fossil fuels. During the ride, Bill Nye brings DeGeneres "back in time" to the age of dinosaurs to explain the origin of fossil fuels. During this portion of the ride, several dinosaurs can be seen that are similar to the ones during Fantasia's The Rite of Spring. Most notably, there is a large Tyrannosaurus attacking a Stegosaurus over a cliff. This is obviously in reference to Fantasia.

In real life
In real life, Tyrannosaurus rex was a genus of coelurosaurian theropod dinosaur that lived in the Maastarichtian stage of the Late Cretaceous Period, about 68-65 million years ago. Thus, it did not coexist with any species of Stegosaurus, which lived in the Tithonian stage of the Late Jurassic Period, from 156-145 million years ago. This puts a gap between the two species that is lager than the one that separates Tyrannosaurus rex from us! Unlike in Fantasia, Tyrannosaurus rex did not have three fingers; it only had two. Why it was portrayed with such an inaccuracy is because Walt Disney reported to Barnum Brown, the discoverer of Tyrannosaurus rex, that it looked scarier that way. Due to recent discoveries on related dinosaurs, some believe that Tyrannosaurus had feathers like Oviraptor, Velociraptor, and modern birds. Additionally, Tyrannosaurus did not walk upright with its tail on the ground, but stood horizontally with its tail a few feet off the ground.

Trivia

 * During the production of DINOSAUR, then called Countdown to Extinction, original plans called for Tyrannosaurus Rex, but Disney decided to incorporate the later newly-discovered Carnotaurus instead. Also, in the original story for Dinosaur conceived and pitched by Phil Tippett and Paul Verhoeven in 1988, the main antagonist was going to be a Tyrannosaurus.
 * A Christmas gag sketch produced for Disney Studio's internal newsletter in 1939 featured the Tyrannosaurus from Fantasia in a Santa suit and named "Mr. S. Twombley Tyrannosaurusclauses."
 * The fight between Sharptooth and Littlefoot's Mother from The Land Before Time has been compared by many critics and fans to the fight between the Tyrannosaurus and Stegosaurus from Fantasia.