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Stub This section is taken from the Dinosaur Field Guide.

"Lot number 2, ladies and gentlemen, a juvenile Allosaurus. A fierce and aggressive predator."
Gunnar Eversol introducing a juvenile Allosaurus to auctioneers(src)

Allosaurus (meaning "different lizard") is an extinct genus of large Theropod dinosaur from Europe and North America. Allosaurus was one of the most common predator of the Late Jurassic period and among the most dangerous. Like most theropod dinosaurs, its jaws were filled with serrated teeth shaped like blades. Computer studies suggest that Allosaurus attacked by using its upper jaw like a machete to hack at its victim, then it used its lower jaw to bite out a slice of meat, although recent studies have proven this unlikely. In terms of size, it was the third-largest theropod of its era, only the likes of the megalosaurid Torvosaurus (10-11 meters or 33-36 feet with 4-5 tons of weight behind it) and Saurophaganax (12-13 meters or 39-43 feet with 6 tons of weight behind it) exceeded it in size and weight. It averaged around 8.5 meters long (28 feet) and around 3 meters (10 feet) tall. However fragmentary remains suggest larger lengths of 11 to 12 meters (36-39 feet), though its weight would be less than the Saurophaganax, which was the heavyweight theropod of the Jurassic.

It might have been easy for an Allosaurus to kill a fairly defenseless dinosaur-like Camptosaurus, but Stegosaurus could certainly fight back with a blow from its tail. Thus it is thought that the Allosaurus hunted in large hunting gangs, similar to that of the Komodo dragon. While this means they hunted 'together', it was still every Allosaurus for itself. Often at times, an entire gang of these dinosaurs would be killed by their prey or by natural hazards, showing they had poor group coordination.

It is known that Allosaurus led a dangerous life. The Allosaurus on display at the Smithsonian Institute has a smashed shoulder blade, several broken ribs, and a lower jaw so damaged that paleontologists didn't realize it was an Allosaurus jaw for over 100 years. But these were tough dinosaurs: Their bones show that they likely lived long enough for their wounds to heal. This Allosaur could very be the adolescent Big Al, whom was the main Allosaur in the 2000 Walking with Dinosaurs special The Ballad of Big Al. Big Al was known to be the most well preserved Allosaurs specimen to have ever been found. His skeleton is housed in the University of Wyoming campus.

Characteristics[]

Interestingly, unlike the rest of InGen's cloned theropods, the wrists of the adult Allosaurus are not pronated, though juveniles do have pronated wrists. Regardless, the cloned Allosaurus have a thicker head than in real life, and is slightly oversized, being 10.4 meters (34 feet) instead of 9.7 meters (32 feet). Adults have exaggerated crests and spines running down their backs. Female Allosaurus clones are mostly dark greyish blue with a yellow underbelly, a white stripe running from a patch around the eyes down the neck, and a pink tongue while the males are mostly dark blueish-grey with yellow underbellies, yellow stripes on the face and neck, a yellow circle around its eye orbit, white markings, and faded red on their crests, and a blue tongue.[5]

Behavior[]

During the eruption on the island, an adolescent Allosaurus exhibited typical behavior seen in many dinosaurs, running in an attempt to escape the catastrophic disaster. In its panic, it snapped at a Gallimimus that happened to be in its path, displaying a defensive reaction. Furthermore, the Allosaurus was observed roaring at Claire, who was inside a gyrosphere, which may indicate an attempt to attack or intimidate the perceived threat.

A mature Allosaurus, known for its solitary hunting behavior, was observed biting a juvenile herbivore at a campsite. This action likely caught the attention of the juvenile's mother, who was present and became stunned, possibly assessing the situation for any potential response. However, the Allosaurus unintentionally released the juvenile, resulting in a defensive attack from the mother. The encounter resulted in the mother being wounded, causing the Allosaurus to abruptly retreat when a male individual arrived at the scene. The Allosaurus then observed as the herbivores left the area.

In the same campsite, the fully grown Allosaurus overhears an infant inside a trailer crying, it initiates an attack on the trailer. Utilizing its strength, the Allosaurus rams into the trailer, causing it to flip over. It proceeds to forcefully burst through the trailer, prompted by the parents' attempts to defend their children. During this encounter, the Allosaurus encounters a fire extinguisher, which it interacts with, resulting in shaking motions that contribute to the destruction of the trailer. Out of anger, the Allosaurus attempts to intimidate the family by roaring but is eventually deterred when it is shot with bolts in the face, causing it to experience pain and eventually walk away.

History[]

Creation[]

In the early 1990s, InGen had completed 12% of the Allosaurus genome for exhibition in the original Jurassic Park on Isla Nublar[6], but this completion of its DNA sequencing had to be put on hold due to InGen's financial trouble. The sequencing of its DNA would eventually be finished by the time that Jurassic World opened up to the public.

Jurassic World[]

The Allosaurus toy from the Jurassic Park 3D toy line (see Allosaurus/Toys) is one of the many dinosaur toys seen inside a toy store in the Main Street of Jurassic World.

Allosaurus is one of the dinosaurs in the Holoscape inside the Innovation Center of Jurassic World.

Jurassic World: Camp Cretaceous[]

At some point during his time on Isla Nublar, Ben Pincus was targeted by an Allosaurus, however, he managed to escapes the predators by jumping down a waterfall.

Jurassic World: Fallen Kingdom[]

Allolizard

Allosaurus roaring at Gyrosphere in Jurassic World: Fallen Kingdom

Allosaurus had been one of the animals cloned for Jurassic World, but were abandoned on Isla Nublar after the 2015 Incident. The population now survived until 2018, but were threated when the island's volcano threatened to erupt.

When Mount Sibo did erupt, one Allosaurus was among the animals stampeding away from the mountain, as it ran next to a Gyrosphere with Claire Dearing and Franklin Webb inside, a falling magma rock hit and killed the dinosaur.

Allosaurus Gas3

Allosaurus in the cage room in Jurassic World: Fallen Kingdom

At least five other Allosaurus were captured by Ken Wheatley and his men and taken off the island to Lockwood Manor, where they are auctioned off by Eli Mills and Gunnar Eversol. During the auction, a juvenile was sold shipped off. The auction was never completed however, and the remaining Allosaurus were stuck within their cages when a nearby skirmish caused a deadly gas leak and broke the ventilation system. With no other option that would save the dinosaurs, Claire and Maisie Lockwood released the animals into the wilds of California.

Battle at Big Rock[]

"Allosaurus. Definitely a carnivore."
Kadasha(src)
BaBRAllosaurusroaring

The Allosaurus roaring at an adult Nasutoceratops and her young

One year after the dinosaurs’ escape from Lockwood Manor, one of the juvenile Allosaurus has fully matured and taken up residence in Big Rock National Park. One night, it attacked a family of Nasutoceratops that were foraging at a camping ground, grabbing the baby of family but eventually lost its grip. The infant ran behind its mother, who engaged the Allosaurus, but was injured after a brief fight. Before the pair could reengage, a male Nasutoceratops arrived and warded off the Allosaurus long enough for the herd to retreat. The Allosaurus investigated the area until it heard a human baby crying from within a nearby RV, and proceeded to knock the vehicle over in order to reach its occupants. The Allosaurus tore through the RV in an attempt to reach the family inside until Dennis and Mariana fought back with a metal pipe and a fire extinguisher respectively. This didn't work for long however, and the Allosaurus went in for a second attack before Kadasha fired a pair of crossbow bolts into its face, scaring the Allosaurus off.

Dinosaur Territory: Proceed With Caution[]

Shortly after the Battle of Big Rock, the event was reported by Rebecca Ryan, who added that the Allosaurus from the battle was being tracked down by authorities. It later returned to the same area where it totaled the news van, trapped Rebecca in the hollow under a tree, and stepped on her phone. It is unknown what happened to Rebecca, whether she made it out or was killed by the theropod.

Jurassic World: Chaos Theory[]

Season 1[]

"Aftershock"[]

The same Allosaurus that supposedly killed Brooklynn appears shortly after Darius Bowman, Ronnie, and Mike find a Pachyrhinosaurus with a thorny vine or barbed wire stuck in its foot. The Pachyrhinosaurus fights off the theropod, but not before it almost ate Darius and the DPW agents. The Allosaurus runs away before Darius can shoot it with a tranquilizer gun. Then Darius gets in his car and tries to go after it, only for him to fail at sedating the Allosaurus again. Darius continually talks about the Allosaurus, as it was the supposed killer of his friend Brooklynn.

Season 2[]

TBA

Jurassic World: Dominion[]

Allosaurus and Carnotaurus attack

Allosaurus and Carnotaurus rampaging in a Maltese city.

By 2022, the Department of Prehistoric Wildlife had reports of Allosaurus tracks near Lake Nassar, Egypt and an attack by a juvenile Allosaurus on a camper in Devils Tower, Wyoming, USA.[7] Another Allosaurus was reported by a cyclist in Santa Croce Camerina, Italy.

Later that year, both an adult and a juvenile Allosaurus were held at the Amber Clave Night Market in Malta for their fight clubs. The juvenile was pitted against a juvenile Baryonyx, while the adult was planned to be pitted against an adult Carnotaurus, However, before the fight could occur, a group of french intelligence officers attacked a deal occurring outside of the market, and Rainn Delacourt ran back inside purued by Owen Grady. During the chase in an attempt to escape, Rainn shot the locks on the crates containing the adult Allosaurus and Carnotaurus, who after a brief squabble between them and Owen moved through the market, attacking and devouring several of its patrons, the Allosaurus in particular tossed a man aside with its jaws, then ate another man that the Carnotaurus caused to back up and set himself on fire after the Allosaurus ate the man that tried to extinguish the first. Some time afterwards, the pair managed to escape the market and rampaged through the city, with the Allosaurus eating at least one man on an electric scooter when the Carnotaurus distracted him.

Gallery[]

Promotional Images[]

Jurassic Park[]

Jurassic World: Fallen Kingdom[]

Battle at Big Rock[]

Jurassic World: Dominion[]

Dinosaur Territory[]

Jurassic World: Chaos Theory[]

Gif[]

Vocalizations[]

Television[]

LEGO Jurassic World: Legend of Isla Nublar[]

Allosaurus appeared in the series, using its design from the short film Battle at Big Rock and sounds from Jurassic World: Fallen Kingdom.

For more information; see Allosaurus (Legend of Isla Nublar)

Trivia[]

  • Jurassic Park: Builder states that Allosaurus is one of John Hammond's favourite dinosaurs.
  • Allosaurus appears on one variant of the cover of The Lost World despite its absence in the book.
  • In early CGI production of the dinosaur stampede during the pyroclastic flow in Jurassic World: Fallen Kingdom, the Allosaurus present was going to have a much different death. Instead of being hit by volcanic rock, it was originally going to show the dinosaur attempting to ambush a juvenile Triceratops before being gored to death by the infant's mother.
  • In Battle at Big Rock, the adult Allosaurus is seen to have supinated wrists instead of pronated wrists, but the GEN 2 Allosaurus, based on the short film model, from Jurassic World: Alive, has pronated wrists, as well as the concept art for the film model.
    • In Jurassic World: Chaos Theory, the scarred, blind-eyed Allosaurus can pronate its wrists, suggesting that adults of the species can pronate their wrists as well.
  • The Allosaurus in Battle at Big Rock was based on the species Allosaurus jimmadseni.[8]
    • The Battle at Big Rock design also bears a suspiciously strong resemblance to the Papo Allosaurus figurine, sporting a similar color scheme as well as the same dorsal spine arrangement.
  • According to an ILM digital model production chart for Jurassic World: Fallen Kingdom, female Allosaurus grow noticeably larger than males, achieving a size on par with the average Tyrannosaurus rex.[9]
  • In Jurassic World: Camp Cretaceous, Ben Pincus states that he once escaped from a pursuing Allosaurus by jumping down a waterfall.[10]
  • In Jurassic Park III, an illustration of an Allosaurus skull was seen on the Montana State University logo. This is strange because the dinosaur has never served as the university's mascot in any capacity.
  • In Jurassic World: Chaos Theory, the Allosaurus is the same one that appeared in Battle at Big Rock and has an appearance extremely similar to how she did in Battle at Big Rock, with a bit more scars, And has the scar at the front of her eye. Which is matched the spot where the girl shot the crossbow at her in Battle at Big Rock.

References[]

Navigation[]

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