Tyrannosaurus Rex vs. Spinosaurus: Who Will Win in a Fight?

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key point:

  • Both Tyrannosaurus rex and Spinosaurus were large predatory dinosaurs that lived in the late Cretaceous period, but they lived in different regions and at different times. Tyrannosaurus rex lived in North America about 68 to 66 million years ago, while Spinosaurus lived in what is now North Africa about 1 to 93 million years ago.
  • Tyrannosaurus rex was one of the largest carnivorous dinosaurs, reaching a length of 12.3 meters and weighing up to 9 tons. Spinosaurus, on the other hand, was much larger, reaching a length of 18 meters and weighing up to 20 tons. This makes Spinosaurus the largest known carnivorous dinosaur.
  • While there is no direct evidence that a battle between T. rex and Spinosaurus took place, some scientists believe that Spinosaurus may have been a better swimmer than T. rex because of its aquatic adaptations, including a long, narrow snout and paddle-like feet.

Tyrannosaurus rex was a huge dinosaur that roamed the Earth 68-66 million years ago. Spinosaurus, another larger reptile, lived about 93.6 million years ago, so it's unlikely it encountered T. rex.

Even though they never meet in real life, the question of which of these reptiles will win the battle against the other is too interesting not to explore. We collected a wealth of valuable data to determine the winner of the T. rex vs. Spinosaurus battle, including physical data and information about their hunting patterns.

We'll use this information to determine which of these two capable monsters will win the fight. It's a battle across time between two titans; see who wins!

Comparing Tyrannosaurus rex and Spinosaurus

Tyrannosaurus vs Spinosaurus
Spinosaurus was bigger than T. rex, but T. rex had a far more deadly bite.

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Tyrannosaurus rex Spinosaurus
size Weight: 11,000-15,000 lbs Height: 12-20 feet Length: 40 feet Weight: Up to 31,000 lbs Height: 23 feet Length: 45-60 feet
speed and movement type 17 mph – biped stride 15 mph – biped stride
Bite Force and Teeth – 57,000 N – 50-60 D-Serrated – 12” Teeth 19,000 Newtons – 64 straight, conical teeth, similar to modern crocodiles – 1-6 inches long
the senses – Very strong sense of smell – High vision with large eyes – Very good hearing – Poor sense of smell – Good eyesight – Unknown hearing due to lack of skull sample
defense – Huge size – Running speed – Huge size
– Ability to attack aquatic creatures
offensive ability – Bone Bites
– High running speed to chase down enemies
– Powerful bite – Speed in pursuit of prey
predatory behavior – Possibly a destructive predator that easily kills smaller creatures – Potential scavenger – Possibly semi-aquatic dinosaurs that ambush their prey at the water's edge.
– Can successfully chase other large theropods

Five Cool Facts About Tyrannosaurus Rex vs. Spinosaurus

Giganotosaurus vs T-Rex - T-Rex Hunting
Tyrannosaurus rex had one of the most powerful bite forces ever recorded, estimated at more than 12,000 pounds per square inch.

©Herschel Hoffmeyer/Shutterstock.com

Tyrannosaurus Rex and Spinosaurus are two of the most famous and fearsome dinosaurs of all time. Both are large carnivores that dominate their respective environments, but they have their own unique traits that set them apart.

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Here are five cool facts about Tyrannosaurus rex vs. Spinosaurus:

  1. Tyrannosaurus rex was a land-based predator that relied on its powerful legs and jaws to hunt down prey, while Spinosaurus was adapted to an aquatic lifestyle, with paddle-like feet that helped it swim in water.
  2. Tyrannosaurus rex had one of the most powerful bite forces ever recorded, estimated at more than 12,000 pounds per square inch. Spinosaurus, on the other hand, had a longer snout and narrower jaw, which may have made it easier to catch fish.
  3. Tyrannosaurus rex had a huge head, almost 1.5 meters long, with teeth over 20 centimeters long. Spinosaurus also had a similarly large head, but its teeth were more conical for catching fish.
  4. Although Tyrannosaurus rex and Spinosaurus lived at the same time, they actually lived on different continents. Tyrannosaurus rex lived in what is now North America, while Spinosaurus lived in what is now North Africa.
  5. Tyrannosaurus rex and Spinosaurus are often portrayed in popular culture as sworn enemies, and there's actually no direct evidence that they ever fought.

Plus, Tyrannosaurus rex and Spinosaurus are incredible animals that have fascinated people for generations.

A key factor in the fight between Tyrannosaurus rex and Spinosaurus

Spinosaurus vs Tyrannosaurus rex
Spinosaurus vs T-Rex pits two giant prehistoric predators against each other.

©Herschel Hoffmeyer/Shutterstock.com

When it comes to a fight between two giant reptiles like this one, the fight comes down to a few key factors.

We've determined that the body composition and hunting behavior of related dinosaurs would have the greatest impact on combat between them. Take a closer look at how each element we've summarized in the table above will affect combat.

physical characteristics

Spinosaurus was taller, heavier and longer than Tyrannosaurus rex.

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Both Tyrannosaurus rex and Spinosaurus are known for being absolutely gigantic dinosaurs. If they are to survive the battle, they will need every advantage they can get. We broke down the physical elements of these dinosaurs into five very specific characteristics. See how these two dinosaurs compare to each other.

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Tyrannosaurus Rex vs Spinosaurus: Size

Tyrannosaurus Rex was a very large dinosaur, weighing up to 15,000 pounds, standing 12-20 feet tall, and about 40 feet long. Many consider Tyrannosaurus rex the king of all dinosaurs in terms of size, but Spinosaurus dwarfs it.

Weighing 31,000 pounds, the Spinosaurus stood 23 feet tall and could reach a length of 60 feet. It's a much bigger creature, especially for a carnivore.

Spinosaurus has an advantage in its huge size.

Tyrannosaurus Rex vs. Spinosaurus: Speed and Movement

Tyrannosaurus rex was fast for a reptile of its size. It can walk bipedally at 17 mph. Spinosaurus was somewhat slower on land, running at 15 miles per hour, but it is thought the creature spent a lot of time in the water because it was a better swimmer.

Tyrannosaurus rex gains a speed advantage, but only on land.

Tyrannosaurus Rex vs. Spinosaurus: Bite Force and Teeth

Spinosaurus had 64 straight, conical teeth and a crocodile-like mouth. However, it has a bite force of 19,000 N, which is nothing compared to the Tyrannosaurus rex. Tyrannosaurus rex had extremely powerful jaws, enabling the dinosaur to exert a force of over 57,000 N in a single bite.

Also, the teeth of Tyrannosaurus rex were as long as 12 inches, while Spinosaurus had only a few teeth, about 6 inches. Tyrannosaurus rex was born to hunt with its powerful bite, but Spinosaurus seems to be more suitable for fishing.

Tyrannosaurus Rex gained a huge advantage.

Tyrannosaurus Rex vs Spinosaurus: The Senses

How long have dinosaurs been on earth
Spinosaurus

©Daniel Eskridge/Shutterstock.com

Tyrannosaurus rex benefits from having many very detailed fossil remains, so we know it had an amazing sense of smell, sight and hearing. However, we don't have that much information about Spinosaurus, but it looks like it had excellent eyesight and a poor sense of smell. Little is known about its hearing.

Tyrannosaurus rex gets a sensory advantage.

Tyrannosaurus Rex vs Spinosaurus: Physical Defense

Physical defenses will keep predators alive or stop a fight before it begins. As far as the T-Rex goes, its sheer size, 17 mph ability, and intelligence make it a very formidable force from a defensive standpoint.

Spinosaurus was even bigger than Tyrannosaurus rex, and it could also hide in water.

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Spinosaurus was not as intelligent as Tyrannosaurus rex, but its adaptability and size gave it an edge in defense.

fighting skills

Good combat skills are very important to survive a battle. Tyrannosaurus and Spinosaurus had certain habits as predators that set them apart, and they had different attacks. See which dinosaur comes out on top in terms of combat prowess.

Tyrannosaurus Rex vs Spinosaurus: Offensive Capabilities

The Tyrannosaurus rex possessed a powerful bite that could tear away large amounts of flesh from an opponent, as well as two forearms that could cut deeply into an enemy. They also had the speed needed to catch their prey, giving them a slim chance of escaping unscathed, unless they went somewhere T. rex couldn't reach.

The Spinosaurus had a powerful bite that would impale its prey severely. Their ability to attack in and near water also sets them apart.

The two creatures were tied because they were aggressive but too unique to determine the outcome.

Tyrannosaurus Rex vs. Spinosaurus: Predatory Behavior

Tyrannosaurus rex would smell, see or hear their prey, and chase it until they managed to kill it. Their method is simple and straightforward, yet very effective. Spinosaurus was probably a chase predator, but it could also have been an ambush predator, looking for prey in or near water.

These two dinosaurs are tied for being the most ferocious predators of their time.

What are the main differences between Tyrannosaurus rex and Spinosaurus?

Giganotosaurus vs T-Rex - T-Rex Hunting
T-Rex was smaller than Spinosaurus, but T-Rex was smarter and built to kill.

©Herschel Hoffmeyer/Shutterstock.com

Spinosaurus was heavier, taller, and longer than Tyrannosaurus rex, but the latter had a much stronger bite. Spinosaurus was also considered semi-aquatic, but Tyrannosaurus rex lived only on land. Finally, Tyrannosaurus rex was smarter than Spinosaurus and had sharper senses.

Who would win in a battle between a Tyrannosaurus Rex and a Spinosaurus?

How long have dinosaurs been on earth
Tyrannosaurus Rex will win the battle against Spinosaurus.

©Orla/Shutterstock.com

In a T-Rex vs. Spinosaurus fight, the T-Rex would win. Spinosaurus did have the advantage of being able to ambush T. rex near water, which is probably the only case where T. rex failed. Given the amazing senses of the Tyrannosaurus rex, it's still hard to pull off.

However, Tyrannosaurus rex had a massive neck that Spinosaurus would not have snapped with its bite force. Tyrannosaurus rex can beat freely and suppress Spinosaurus. With all the power and 12-inch teeth, the most likely outcome is that T. rex killed Spinosaurus.

In fact, with its high IQ, senses, powerful legs to prevent falls, and massive bite force, the Tyrannosaurus Rex was underweight for this fight, but it was still capable of inflicting fatal damage on another dinosaur. This is where the Spinosaurus falls short.

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about the author


I'm a freelance writer with 8 years of experience. I've written in various fields such as Managed Service Providers, Animals and Retail Distribution. I graduated from Rowan University in 2014. When I'm not working, I enjoy playing video games, reading and writing.

FAQ (Frequently Asked Questions)

Was Tyrannosaurus rex bigger than Spinosaurus?

Longer than Tyrannosaurus rex, Spinosaurus was the largest known carnivorous dinosaur. Estimates of Spinosaurus reached up to 60 feet in length, while length estimates of Tyrannosaurus rex typically range from 40 feet to 50 feet in the largest specimen.

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