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.

Largest marine carnivore to ever exist in this planet. An excellent swimmer. It usually hunted fresh water fishes and turtles, but was also capable of hunting on land. It was huge and on top of that it had a huge sail. Tell what's cooler than that? Saying that a t-rex can defeat it, it's like saying that a crocodile can kill a hippo just because just because it has a stronger bite. Also, the spinosaurus lived in the Triassic period, a long long time before the T-rex existed. So that makes the spinosaurus even more awesome.

I think Spinosaurus is definitely a massive predator. I am not convinced it could take down a T-Rex (tyrannosaurus). It has large arms most likely but really that wouldn't do too much while fighting another large predator. Also some studies show spinosaurus walking on four legs. If that was the case most large predators would have the upper hand and would most likely win. T-Rex had more fighting experience on its size. T-Rex would have fought more larger prey and also armored prey (sometimes). Spinosaurus would have caught fish and in rare occasions other dinosaurs. Spinosaurus most likely fought crocodiles and possibly carchadontosaurus, but not very often if they even did. That is why I state and stand by my statement that t-rex would have beaten spinosaurus more than spinosauruswould beat t-rex. (taking out the area they fought and any possible venom or other advantages)

Haha um...Spinosaurus was (maybe) the largest in length and height, however, mass wise it was severely out-sized by many other large carnivorous dinosaurs. Also its mouth was elongated with smaller teeth then other large carnivorous dinosaurs and its jaw was laden with pressure sensors similar to those of many aquatic predators. This indicated its diet consisted of aquatic organisms and or much smaller land animals not big prey like which the tyrannosaurus hunted and scavenged off.

So sorry fanboys but its kinda not like the one from Jurassic park 3.

I would love to vote for the T-Rex and say he should win this thing and be recognized as the most dangerous carnivorous Dinosaur Predator ever being from North America instead of Africa like the Spinosaurus BUT the Spinosaurus according to the top experts and paleontologists was actually even bigger than the T-Rex if not a lot bigger, longer, heavier, had a longer mouth, could probably run faster, could use its arms and swipe and scratch with them if not even maybe walk on all 4's with them, hold down their pray with them probably, it could swim etc. it's bite wasn't as strong or it's jaw compared to the T-Rex but overall I think the Spinosaurus would definitely have an advantage, who knows what would really happen and probably any species could win on any given day just like when people fight but I just think honestly that the Spinosaurus would probably be the Champion of Dinosaurs if we had a legit fighting tournament, just my view!

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 more.

T-Rex is the most dangerous because he has the strongest bite out of all the dinosaurs on this list. They were capable of crushing bone. He had tiny arms but they were very strong. They were the length of a human arm. It was 40 feet in length and weighed 7 tons. It had incredible stamina, meaning it could run for long periods of time. It was capable of taking down the most dangerous herbivores such as Triceratops & Ankylosaurus. It could even take down giant sauropods such as Brachiosaurus & Apatosaurus. T-Rex definitely is the most theropod that ever lived.

Tyrannosaurus Rex was the most powerful terrestrial predator on the planet when it was alive. People say that dinosaurs like Spinosaurus and Giganotosaurus were the deadliest and that T-Rex was heavily overrated but sadly no other carnivore could compete with such a beast like this one.

If there was a ban on dinosaur existence I would put it on Tyrannosaurus rex; it was the shark in a tank of theropod guppies and it was way too op.

I don't think there was a theropod dinosaur as well developed or as powerful as tyrannosaurus rex. Pound for pound, Tyrannosaurus is the most powerful and robust theropod to have lived. It had a barrel shaped body, advanced, thick teeth and jaw muscles that were designed to smash through bone (with a force of 12,800 lbs and muscle!). Tyrannosaurus wasn't the longest theropod, but it was one of the most massive. Because of its dominant strength, superior speed, and large size, Tyrannosaurus retains its crown as the king of the dinosaurs.

By the way, someone REALLY needs to change the rex's avatar to something more accurate.

Tyrannosaurus Rex was more masculine, more intelligent, and far more lethal than any of it's competition. It was 37-50 feet long, up to 23 feet tall, and 11 tons in weight, which is twice as heavy as an Asian Elephant. It had an 18,000 pound per square inch bite that eliminated all of it's competitors including SPINOSAURUS! A deadly bacteria in it's saliva would utterly terminate helpless prey even if they somehow survived the initial bite. Tyrannosaurus Rex was was the most lethal and more dangerous than anything else. T-rex Rocks!

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.

I think the Giganotosaurus is the most dangerous dinosaur by far. I think it is the biggest, strongest, toughest, and the fiercest dinosaur of all. It is way better than any dinosaur including the t-rex. IT IS THE MASTER OF ALL DINOSAURS!

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.

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!

Giganotosarus was one of those few dinosaurs that where worse than the tyranosarus rex. This dinosaur was one of the only dinosaurs who could take down a giant, giant sauropod dinosaurs. It was bigger than a tyranosarus rex, and one big, mean, fighting machine! Look out tyranosarus rex, giganotosarus will kill you!

4 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.

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

Interesting reptile. Similar in fact longer than the Tyrannosaurus. Was commonly found in the North Africa and South American region.

5 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.

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!

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.

6 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.

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.

Although we are not completely sure they're is evidence they hunted in packs. Fossils do indicate that they grew to the size of the T-Rex. (or at least very very close) The thought of a pack of T-Rex's are incredibly scary.

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.

Sure the T rex is all big and bulky, but since it's so big it would probobly be really slow. While the raptor is more agile and speedy. Not to mention they hunt in packs.

Well of course Velociraptor is the most dangerous! A Spinosaurus or T Rex is so big, it wouldn't actually EAT a person! A person is like an oyster cracker to a T Rex!

One is weak, but a whole pack can take out a spinosaurus. the bigger, the dumber. So it is VERY smart. Speed is high. attack with packs are the best.

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!

8 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!

longest allosaurid getting confused with allosaurus maximus to saurophagonax maximus is allosaurus just a young saurophagonax

9 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.

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.

Ankylosaurus should be number 1 just because it wasn't a predator doesn't make it less dangerous as it would have to defend it self from ferocious predators like t rex. It was covered in armoured plates on its body which spinosaurus wouldn't be able to penetrate through and t rex just managing due to its high bite force but it would have to watch out for its primary weapon a club at the end of its tail that can break the leg's of even the largest theropods and if they came in to bite break their jaw. Most predators would be lucky to survive.

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.

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

How the heck do u know? So, this animal looks scary does not mean its dangerous!

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 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 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

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.

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

13 Megaraptor

Apparently, most of the people who posted on this site know very little about dinosaurs! Megalodon and liopleurorodon were not dinosaurs and the latter was about 30 feet long not 95! The remark about how loud allosaurus could roar is rediculous, because no one ever heard one and furthermore, saying they are more intelligent than T-Rex is incorrect, because T-Rex had the largest brain of all the large carnivores, although Troodon was probably the most intelligent dinosaur of all.

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.

Megaraptor was 20 to 35 feet long it was the of the raptor family it could take down a dilophosaurus

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

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

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

Kill with no problem

Hunted Sauroposeidon, the tallest dinosaur

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.

What the hack putting a allosaurus in 7th place a albertosurus should be at lest 6th place or so

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

Albertosaurus was one of the fastes large meat eating dinosaur ever found

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

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

Troodon could run 30 mile per hour and more deadly than trex, hunted in packs and was a lethal killing machine. I love troodon

17 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

Stegosaurus is my faverete herbivore dinosaur put him in 2nd

18 Torvosaurus Torvosaurus is a genus of carnivorous megalosaurid theropod dinosaurs that lived approximately 153 to 148 million years ago during the later part of the Jurassic Period in what is now Colorado and Portugal.

This dinosaur needs some more attention. Maybe this top ten is a fanboy theory, because why is torvosaurus listed down? This is a strong and powerful dinosaur. It's maybe shown with slender pictures but ones you saw it's skeleton... you will see this one is a monster. Others should vote for this.

This is an extremely dangerous dinosaur. It should be on top of the list. A Torvosaurus could kill a Allosaurus. It probably could take down gigantic dinosaurs like Dimerosaurus. (A Portuguese sauropod) It would have killed other predators like Allosaurus or Ornitholestes.

For the comment three comments below, you got mixed up. your talking about a Torosaurus from the ceratopsian family.

Torvosaurus is one of my favorite and it is very strong,deadly and savage and also has a very strong bite.

19 Vastatosaurus Rex

We can defeat it if we were big enough

Nicer than a t rex

I like them all

At least it's arms are longer than t.rex, but not strong enough.

20 Dromaeosaurus

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

I think it could not harm a huge T rex may have formed packs over small ceratopsians like leptoceratops

21 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.

Not shown accurately a lot jurrasic world Not good the dilophosaurus was 20 ft long anddid not have a neck frill nor did it have poison glands like shown in jurrasic world

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.

22 Tyrannotitan

In the carcharodontosaurid family REALLY DANGEROUS I think there is a gazzilion dinosaurs more scary than t.rex Tyrannotitan 1 place!

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.

I like the tyrannotitan

23 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.

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 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.

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.

24 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.

25 Pachycelaphosaurus

See this guy has a big bony dome which head but with other pachycephalosaurs and to scare off other carnivores and say top back OF!

It could easily take on a troodon or any other small dinosaurs due to its powerful skull

My fave dino of all time this beast could beat most dinos or at least seriously wound

It have powerful skull it can hit with head!

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