Top 10 Most Dangerous Dinosaurs

The Top Ten
1 Spinosaurus Spinosaurus is a genus of theropod dinosaur that lived in what now is North Africa, during the lower Albian to lower Cenomanian stages of the Cretaceous period, about 112 to 97 million years ago.

This was a tough one for me because both Giganotosaurus and Carcharodontosaurus are strong contenders. What finally gave T. Rex the vote was its incredible bite strength. The others were slicers whereas T. Rex was a bone crushing ripper. Having said this the rippers would usually need multiple attacks to win, but a T. Rex can win with a single bite. Regardless, I think any of these beasts could best the other given surprise. One last comment, Spinosaurus does not even contend with the three brutes listed. Its design makes it more vulnerable to attack, its weapons were not designed for large strong moving pray, and size isn't everything.

The biggest carnivore dinosaur so far, not to mention one of the most adapted. So many people incorrect on T-Rex, saying it's the smartest and most adapted. T-Rex braincases were actually fairly small, and adapted? Not as much as Spinosaurus, which had a sail that "could" have been used to control its body temperature, and recent studies suggest it could be semi-aquatic, putting it up against prehistoric marine predators. Also, the scene in Jurassic Park III was very accurate, the T-Rex died not because of the bite wound on the neck, but because the Spinosaurus twisted and snapped the neck, paralyzing or killing it. T-Rex fanboys need to learn their places.

The biggest predator of all, the Spinsaurus shall take first first place. Putting T-rex in first place is one of the weirdest things I've ever heard, and trust me, I have heard lots of weird things in my life. This predator was much faster than T-rex and think about T-rex's arm length! The spinosaurus used its sail to help it stay active, and the T-rex probably got tired quickly. Spinosaurus could hunt in water and on land, and the only thing I think could POSSIBLY take over first place is Utahraptor, but only because of its speed and that it hunted in packs. Now, if we were talking about most dangerous SHARKS, Megalodon would be first place, but we aren't. My little sister thinks stegosaurus is the most dangerous, but only because it's her favorite and it has a thagomizer (tail spikes). Easy win for Spinosaurus in that battle.

Spinosaurus was an impressive predator, but unfortunately, it wasn't built to be a land-based predator. It was largely piscivorous, meaning its preferred diet was fish or other aquatic lifeforms. It has killed other dinosaurs that lived in its environment, but my guess is that those kills are considered if Spinosaurus doesn't find anything underwater.

Plus, it lived in the same time and place as Charcharadontosaurus, another predator that was bigger than the T. rex, but they were able to coexist mainly due to the fact both had their own dietary preferences. If the two were to really fight, I'm gonna say Charcharadontosaurus wins simply because its weaponry (razor-sharp teeth and powerful clawed forearms) is designed to kill large dinosaurs. Spinosaurus may have had large, powerful arms of its own, but its skull and teeth were specialized for aquatic prey, which would largely prove ineffective against a predator more suited for terrestrial prey.

That's not to say it is ...more

2 Tyrannosaurus Tyrannosaurus, meaning "tyrant lizard", from the Ancient Greek tyrannos, "tyrant", and sauros, "lizard" is a genus of coelurosaurian theropod dinosaur. It also had a tremendous bite force, the strongest of any Dinosaur and living terrestrial animal. Its bite force reached up to 12,800 pounds (roughly 5805 Kilograms).

T. Rex should be at that top o' this list 'because it was the most powerful theropod 'n' carnivorous dino due to its strength, ferocity, teeth, bite, 'n' saliva. Plus, its muscles made it the heaviest the strongest an' heaviest theropod.

T-REX IS AWESOME! He is the one, the only, king of all dinosaurs! There are some things Tyrannosaurus Rex has that Spinosaurus doesn't:

1. T-Rex has bone-crushing jaws that could crush a car.

2. He can run 25 miles per hour, faster than a person.

3. He lives in North America.

5. He has feathers.

6. He could prey on sauropods (mainly Alamosaurus), hadrosaurs, and other dinosaurs. He even fights Triceratops.

5. He lived after Spinosaurus.

6. He is the king of all dinosaurs.

And 7. He hunts in packs like lions.

Spinosaurus on the other hand only has these things:

1. He lives in Africa, not North America.

2. His jaws are not very strong and his teeth are conical.

3. He mainly eats fish.

4. Lives near water.

5. Walks on all fours, and probably wasn't that fast.

6. His sail was fused to his backbone, so if he fell over on his side he would break his back and die.

And 7. He went ...more

T. Rex was the most dangerous, much more than Spinosaurus. T. Rex had bulk, brains, and power on his side. T. Rex was a big dinosaur, and he was definitely not a light-weight for his size. T. Rex also had a very large brain for dinosaurs. Then, T. Rex also has the largest (if not one of the largest) bite forces of anything on Earth. Spinosaurus, however, had a weak bite force and was likely a quadrupedal dinosaur and would be mostly incapable of taking a bite from T. Rex. Spinosaurus' quadruped form meant that the front claws (what people say is the best weapon they have) would not be an effective weapon because they would need to suddenly rear up and slash.

Tyrannosaurus dealt with prey that, while not the biggest, were mostly equipped with natural weapons that could fend off, or even kill a T. rex, meaning it had the most dangerous prey to go up against.

Also, it could be possible that T. rex hunted in packs, or at least in a pair. It was one of the most advanced dinosaurs around, with excellent binocular vision, exceptional smell and one of the strongest bite power of any animal. All these suggest that the environment the T. rex lived in was dangerous, hence it truly needed to be some of nature's deadliest predators.

3 Giganotosaurus Giganotosaurus is a genus of theropod dinosaur that lived in what is now Argentina, during the early Cenomanian age of the Late Cretaceous period, approximately 99.6 to 97 million years ago.

It may not have been the biggest dinosaur, but it was either the 3rd or 2nd largest carnivore. This guy is 47 feet long, 18 feet tall and it hunted in packs. Only something from The Lord himself could kill this beast. This guy should be number 1!

Giganatosaurus was the second biggest Theropod I think but far bigger than Carcharodontosaurus it ate sauropods and scientists even say there strong and big enough to kill a full grown titanosaurus. PS it was also bigger than T. rex and I also think they only vote because some of these Dinosaurs were famous and familiar.

The size coupled with arms that are actually useful in a hunt, they overshadow the T-rex. This was proven where fossils showed they could even take down arguably the most massive dinosaurs ever.

T Rex is riduculous. Famed only because of its role in Jurrasic Park. It was likely a scavenger and had short arms. But it is 4th largest carnivore dinosaur. Giganotosaurus was 3 2 position in size had large arms and hunted sauropods though spinosaurus was larger.

4 Utahraptor Utahraptor is a genus of theropod dinosaurs. It contains a single species, Utahraptor ostrommaysorum, which is the largest known member of the family Dromaeosauridae.

Pound for pound, Utahraptor was one of the deadliest killers ever, even above T-Rex, if we're speaking literally, only behind his smaller cousins like Troodon and Velociraptor. However, what he lacks in skill an speed, he makes up for size and power. 20 feet long, 8 feet tall, Utahraptor could kill a full-grown grizzly bear by using superior agility to his advantage, and was more than a match for much bigger dinosaurs, some of which they hunted alone, despite the dinosaurs being more than twice their size.

Now, Utahraptor is the biggest raptor, and could tear to shreds velociraptor, which most of you know as a fierce mini T. Rex kind of creature which hunted in packs and was intelligent. Actually, velociraptor was the size of a Turkey, not that intelligent, and not nearly as fierce as our Jurassic park raptor. The dinosaur that was actually in Jurassic park which was called a "velociraptor" is a deinonychus. Look it up, people.

This thing has 9-15 inch claws and makes the Velociraptor and Deinonychus look like a Turkey. This could rip a lion to shreds without so much as a scratch. It is the ultimate killing machine. Highly lethal. This is deadlier than the raptors from Jurassic Park. If they were still alive we would be tasty snacks and they would be the dominant species.

The Utahraptor is the ultimate killing machine!
9-15 inch sickle claws on each foot, superpowerful
Arms with three deadly, shredding claws on each, a mouthful of razor-sharp teeth, a superfast top sprinting speed, 25 feet long, extremely smart for dinosaur standards, very maneuverable, and hunting in packs!
The Utahraptor is the ultimate carnivore! It deserves number one!

5 Allosaurus Allosaurus is a genus of large theropod dinosaur that lived 155 to 150 million years ago during the late Jurassic period.

Allosaurus was not the smartest dinosaur, Troodon was. The only reason why they took down prey larger than T-rex was because they were in packs. T-rex was mostly solitary. They worked together, but not as well as more intelligent raptors. Also, raptors were one of the most intelligent animals and knew they should have stayed away from Tyrannosaurus Rex. Yet T-Rex's main and only advantage is physical structure. T-Rex was more slow and I guess less intelligent.

Yeah sure, Allo here isn't the biggest or the physically strongest dinosaur on this list, but anything of that size and speed would've been more of a menace to modern society and us as humans than most other dinosaurs. The fact that it might've hunted in packs of OVER 40 doesn't make it any better. Nothing of that size or power should be traveling in groups that big and the fact that it does... well that just makes it an absolute menace, now doesn't it?

Allosaurus is a theropod built for both power and's the most common predator of the jurassic, also the most succesfull. Allosaurus has 3 huge talons on it's powerful arms, and even though it's bite is not as strong as a is still a very devastating weapon with shark-like teeth and it can use it's upper jaw like an axe. Allosaurus can be put on no.5, because a utahraptor is no match for Allosaurus...

Smart, fast, and close to T-Rex's size. It also has long arms, and of all the dinosaurs, it is one of the best healers. There are fossils of mended Allosaurus bones that were stabbed my stegosaurus. It's amazing how they survive that stuff.

6 Carcharodontosaurus Carcharodontosaurus is a genus of carnivorous carcharodontosaurid dinosaurs that existed between 100 and 94 million years ago, during the Cenomanian stages of the mid-Cretaceous Period.

Had a slightly darker look compare to the T-Rex and other bigger carnivores. It also had smaller arms such as the T-Rex, although having bigger arms gave it the ability to move better and have slightly better balance. It existed in the mid-end Cretaceous period.

Charcarodontosaurus should be number 3, while T-rex should be 4. Shark-toothed lizard (that's the definition) had a more lethal bite than T-rex and could possibly run faster. The only thing it was not superior to T-rex is it's brain. It's brain was only half the size of T-rex's.

Hm Carcharodontosaurus lived at the same time and place as Spinosaurus but was only slightly bigger than T rex, so I am thinking maybe Carcharodontosaurus should go to second place.

Carcharodontsaurus had sharp long teeth for shearing through sauropods and fought against Spinosaurus, the largest carnivorous dinosaur ever to live and Sarchosuchus. It was no doubt the apex predator of Africa

7 Velociraptor Velociraptor is a genus of dromaeosaurid theropod dinosaur that lived approximately 75 to 71 million years ago during the later part of the Cretaceous Period.

Velociraptor should be 3rd because they are intelligent, fast and most of all they can jump really high. They might be small and a size of a chicken or 6 foot tall but it doesn't mean that they can't be the deadliest dinosaur.

The Velociraptor is very deadly and hunt in packs. Although, they are actually pretty small. I agree, they are probably the smartest and most intelligent dinosaurs to ever walk the Earth.

I voted for Velociraptor because they hunt in packs to take down dinosaurs twice their size. Not to mention their speed and raised sharp toe claws. So Dangerous!

These things are faster than cheetahs, sharp claws, sharper teeth, if these things still existed, they'd probably be one of the most dangerous animals out there.

8 Ankylosaurus Ankylosaurus is a genus of armored dinosaur. Fossils of Ankylosaurus have been found in geological formations dating to the very end of the Cretaceous Period, between about 68–66 million years ago, in western North America, making it among the last of the non-avian dinosaurs.

The Ankylosaurus is vegetarian, but they are quite dangerous, large and staggering, and I think they don't have too much fear for carnivorous dinosaurs, although it is not as big as a Brachiosaurus, but one of the most dangerous Vegetarian Dinosaurs, their appearance is somewhat terrified, armed like tanks,and their temper doesn't seem to be good.A bad tempered dinosaur is dangerous, and the more bad tempered it is, the more dangerous it is.

Ankylosaurus should mean armoured lizard as its back and tail are full of deadly armoured plates. At the end of its tail was a thick tail club. A big predatory dinosaur like T-Rex would haye been lucky to of survived if it gets clubbed.

Ankylosaurus probably had no predators because it is too wide and long for carnivores like Tyrannosaurus, plus add a clubbed tail and a very strong armor.

Ankylosaurus had low intelligence and poor eyesight but the reason it is so powerful is because of its armor. It must be flipped over just to be injured.

9 Saurophaganax

Think of an allosaurus only bigger, nastier and mightier. Saurophaganax is an allosaurus on steroids. It's the grizzly bear of the jurassic period challenging allosaurus, edmarka and epanterias. It had huge claws and ferocious jaws. This should be at top 4 or higher.

Saurophaganax is the Grizzly Bear of the Jurassic. He could hunt anything twice his size. He makes Allosaurus look like a coyote compared to this killer.

Congratulations! Your Allosaurus has evolved into Saurophaganax!

Literally the evolution of the Allosaurus!

10 Mapusaurus Mapusaurus was a giant carnosaurian dinosaur from the early Late Cretaceous of what is now Argentina and possibly Chile.

Discrediting the fact that Mapusaurus was bigger than the T. rex, it was also a pack hunter, hunting in groups of 3-5. Though its justified as Mapusaurus's primary diet consisted of what appears to be the largest land animal that ever existed.

It took down the biggest dinosaurs, like Argentinasaurus (May have misspelled that). It hunted in packs and also killed other carnivores. It was about 45 feet, bigger than a T. Rex. Definitely the most dangerous Dino.

This Dino was 40 feet long, weighs 3 tons, hunted in packs and had powerful legs and tail

The Contenders
11 Deinonychus

This creature is stealthy fast stealthy and intelligent which makes it a formidable predator. They hunt in packs usually in numbers to 1-5. It has razor sharp claws which the use for hunting. Its sharp claws dig into the skin like blades and can almost claw inwards 180 degrees.

Yeah, they made a mistake in the first Jurassic Park, and they accidentally identified the Velociraptor as a Deinonychus. Deinonychuses are actually the ones that are scaly, are smart, and have the big claws.

I'd say raptors are the most dangerous dinosaurs out there. If any raptor was scaled up tot he size of T-Rex. They've got the whole package: speed, brains, claws, teeth, and team work.

These were fast, agile raptors with large wicked claws that are at least 4 inches long. They also hunted in packs, making them more dangerous.

12 Megaraptor

It is 26 feet long and 200 pounds. It a successful hunter and more dangerous than t rex. Don't say anything until you know about it. I hope you will go with me. That's all.

This guy is big

Megaraptor and megalodon is stronger then a Utah raptor so why is Utah raptor 4th

13 Tarbosaurus Tarbosaurus is a genus of tyrannosaurid theropod dinosaur that flourished in Asia about 70 million years ago, at the end of the Late Cretaceous Period.

The tarbosaurus is the most powerful predator in Asia. It can kill an albertosaurus and just to say, spinosaurus just seems powerful because it killed the t.Rex in Jurassic Park 3, it's not really that powerful.

Tarbosaurus is the most dangerous dinosaur in Asia, that's because it's basically T.Rex junior, it can definitely defeat a velociraptor or a utahraptor. I believe he should be about top 5 or 7.

The Tarbosaurus was a powerful dinosaur in the late Jurassic period and early creataceous period. It didn't have too crazy challenges which might have put it a bit weaker, but it did face the therizinosaurus. By the way the
Tarbosaurus would definitely defeat the velociraptors

Tarbosaurus is the second biggest member of the tyrannosaur family which includes tyrannosaurus rex.

14 Acrocanthosaurus Acrocanthosaurus is a genus of theropod dinosaur that existed in what is now North America during the Aptian and early Albian stages of the Early Cretaceous.

The Acrocanthosaurus is 40 feet long and was stronger, faster, and smarter than any carnivore. Capable of killing almost any dinosaur, Acrocantho saurus should be number 1

Kill with no problem

Acro is like 5 feet bigger than the largest T. Rex and had high bite force

15 Albertosaurus Albertosaurus is a genus of tyrannosaurid theropod dinosaurs that lived in western North America during the Late Cretaceous Period, about 70 million years ago.

A close cousin to the trex. Hunted in packs. Is part of the 'Tyrannosaur' family. Need I say more?

They say Albertosaurus is the predecessor and ancestor of the T rex

16 Troodon Troodon is a dubious genus of relatively small, bird-like dinosaurs known definitively from the Campanian age of the Cretaceous period. It includes at least one species, Troodon formosus, known from Montana.

While enormous theropods like T. Rex and spino can certainly pose a threat, troodon is like something from a nightmare. With disimbowling claws and superior intelagence, this killer is faster than any human, but the real threat comes from its size. Troodon was 5 feet tall, small for a dinosaur, but this means it could go into buildings and hunt you down in your own home. With large eyes and good hearing it could catch you in the dead of night. Add the fact that they hunt in packs, and your survival chance is absolutely zero.

They layed eggs in their prey once they killed it to keep it warm and give it a food supply once it hatches, so yeah, there were quite dangerous and smart.

Some say their teeth were silver and as painful as bullets, they're nocturnal eyes would slowly poke out of bushes at night before you face your demise.

One of if not my favorite dinosaur, but I don't think it was all that much of a fighter. troodon had different advantages, like its large brain

This thing could beat up everything else on the list in a snap! It should be first!

17 Mosasaurus

Many people don't count moaser as a dinosaur, but I do and always have. It's stronger than many, as any that came near it would be swallowed whole!

It proved to be quite a threat in Jurassic World eating the Dominus rex with one bite.

Mosasaurus was huge. And it was not a fish. Or a dinosaur. But still beast!

Mosasaurus is very big!

18 Stegosaurus Stegosaurus is a type of armored dinosaur. Their fossil bones have been found in rocks dated to the Late Jurassic period, between 155 and 150 million years ago, in the western United States and Portugal.

No one beats this Dino! It could individually kill packs of anything including tyrannosaurus!

It's plates were full of blood vessels and wouldn't be potent whatsoever in battle.

Plates on its back and deadly spikes on its tail. It must be on the top ten

They could kill a T. rex wow

19 Carnotaurus Carnotaurus, meaning "Meat eating Bull" in Ancient Greek, is a genus of abelisauridae theropod dinosaur that lived in what is now South America about 70 million years ago in the Late Cretaceous period.

I mean literally Carnotaurus was one big predator but paleontologists still believe that the one specimen which was Carnotaurus Sastrie was a juvenile and it was 25 ft tall. Yeah, I mean it was one of the most dangerous predators in the southern hemisphere as it could run at a speed of 45km per hour. And by the Big fan of The Gaming Beaver so I should call him 'TOAST'

Why wasn't this one on the list to start? Just look it up and you will see. I mean its name means "meat eating bull" and it was bipedal, 25 feet long, and weighed a ton. Also, it most likely was not a scavanger like the tyrannosaurus rex is thought to be.

It should be in the top ten! He's the best! His name means man eating bull for crying out loud! He should be in about 9th place. In my opinion he is the best dinosaur by far!

He is awesome! He should be in the top ten! He was big and had horns! His name meant man eating bull! He was also fast!

20 Triceratops Triceratops is a genus of herbivorous ceratopsid dinosaur that first appeared during the late Maastrichtian stage of the late Cretaceous period, about 68 million years ago in what is now North America.

Triceratops lived in a very hostile environment during its time. While it had horns and a thick frill for very effective defense, it was a territorial dinosaur, and one that wasn't easy prey for any predator.

Scientists have actually flat out stated that Triceratops is officially the most dangerous dinosaur ever. Look it up on the Discovery Channel.

It is actually the strongest. A T. rex can not bite through its frill so must maneuver around it to get bites. All the triceratops must do it's charge straight at it. I think it could beat T. rex 70% of the time. T. rex was most likely an ambush hunter.

TriceraTops can kill Trexes, not many people know this but Maximus triceratops can run faster than Trex, and can injure or kill them, search it.

21 Vastatosaurus Rex

What is this exactly?

22 Dromaeosaurus

Too small to kill t rex but at least it is smart, right?

23 Dilophosaurus Dilophosaurus is a genus of theropod dinosaur. It contains a single known species, Dilophosaurus wetherilli, known from fossil remains found in the Kayenta formation of Arizona.

Dude that dinosaur is beast it can spit out acid up to 20 feet if that hit a dinosaur like Uthahraptor that would blind it and Dilophosaurus could go for the kill plus its very fast and jump high.

Ok don't know how the hell is it in 16th place! Guys for me it's the dangerous than any other dinosaure in the world, even the T-rex. It eats the spinosaures, I don't care if you laugh me out but you must see how that thing looks. It looks even terrifying than a Tyrannasaures Rex. That dinosaures is a BEAST! Really.

It didn't have a neck frill and couldn't spit acid, but was still a powerful predator.

This thing is EPIC it can blind things so that it gets a free meal while avoiding
a fight and they hunted in packs. killing machine man.

PS see jurassic park

24 Tyrannotitan

Comparable to Giganotosaurus & Carcharodontosaurus (and possibly larger) one of the South American monsters surrounded by large sauropods for food. Teeth could slice and were somewhat more robust, like a Tyrannosaur. Gave sauropods nightmares, and has a killer name too.

Bigger than Tyrannosaurus, powerful arms, related to Giganotosaurus, Mapusaurus, and Carcharodontosaurus.

25 Majungasaurus Majungasaurus is a genus of abelisaurid theropod dinosaur that lived in Madagascar from 70 to 66 million years ago, at the end of the Cretaceous Period. The genus contains a single species, Majungasaurus crenatissimus.

Majungasaurus and Majungatholus is the same. Majungasaurus should be higher than this. Its quite stocky and has a very thick skull dome which can be used to headbutt the flanks of its enemies. Its also big and has powerful jaws with powerful teeth. It also has a powerful tail that it can use as a bat to strike an enemy. Also it has a cannibalistic behaviour.

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