Dinosaurs have always been represented as fierce and dangerous animals. And we were not wrong to do so, because there were many that today would make our existence practically impossible. But… What were the fiercest dinosaurs of all?

That is the question we are going to solve today.

To do so, we decided to ask all fans of our twitter account. And how could it be otherwise, they responded with up to 7 options to choose the most ferocious dinosaur in history. When you read what each of them was like, you will clearly understand why they were chosen.

Tyrannosaurus Rex

There is no more classic way to start a list of ferocious dinosaurs than to start with the tyrannosaurus rex. Who doesn’t know him? Thanks to Jurassic Park, he’s practically the most popular dinosaur in the world. The question is… Was it so fierce? Or is her fame given by the movie?

Well, there are many opinions about it. In fact, the debate between those who say that it was a predator and those who say that it was simply a scavenger has been going on for a long time. The movies probably exaggerated, but we will reveal all about the “lies” of the tyrannosaurus rex in a future article that we will dedicate exclusively to this topic.

utah raptor

Utah raptor

Dromaeosaurids have utah raptor as a representative in this fierce compilation. Do not be fooled by his feathers, since his claws were curved and could rip and tear anything that was put in front of this man. Have been found claws up to 24 centimeters in lengthso it was not convenient to get too close to them.

Its size was about 7 meters, although it only weighed 500 kilos. That made it brutally agile and able to get close to its prey to reach them with its deadly claws. You will not be able to say that he does not deserve to be on this list.



A dinosaur whose name is Giganotosaurus it has to be fearsome yes or yes, besides being the profile image of our Twitter it must be. And if it is the theropod with the largest skull, which even became disproportionate for its size, the more fear it must instill in us. There is no doubt about this, since according to the findings it was quite a predator, despite the fact that it did not disgust the carrion.

With a length of almost 13 meters and a weight that could reach 14 tons, you can imagine the reaction of the rest of the dinosaurs when it appeared on the horizon. His curved and serrated teeth were a very dangerous weapon, since in addition the large size of his skull made him have really big teeth.


Another of the fierce acquaintances. The torvosaurustheir 10 meters highthe weight of almost 2 tons and the agility that characterized him made him a dangerous rival in the middle of a “battle”. As we can see, it is another carnivorous theropod, since that is where we have most of the most recognized ferocious dinosaurs.

It had arms very similar to those of the T. Rex, since they were especially short for their size. Of course, if he managed to reach something with his arms, they became two killing machines because they were extremely strong.



This dinosaur is not as well known, but I am sure that its danger is not less than the rest of those that have been presented. It was probably one of the most dangerous predators of the Cenomanian (Africa), since it was capable of hunting different titanosaur specimens that were not easy prey.

Its size was 11 or 12 meters long and its weight was 12 tons.being similar in this sense to Tyrannosaurus and the next protagonist on this list. If you went to the area that now occupies Africa, it was better not to meet the bahariasaurus over there or your life could be shortened quite a bit.



Share territory with Spinosaurus and living long enough to “tell about it” must have some merit, right? Well, that’s exactly what he did. Carcharodontosaurus, which lived in Africa with other large predators such as the one mentioned above. And if its name comes from the fact that It has teeth similar to those of sharks.the more fear it can instill in us.

It measured between 12 and 13 meters and could weigh up to 15 tons.which makes it one of the heaviest theropods next to Giganotosaurus and the Spinosaurus. In addition, his skull had nothing to envy to the first, because with almost 1.6 meters long they could compete to see who had the hardest head.

A dinosaur capable of tearing flesh with its deadly teeth and that, as if that were not enough, it also had sharp hook-shaped claws so that its prey would not escape. If they didn’t bleed to death, they died completely torn to pieces.

concavenator corcovatus

Concavenator corcovatus

An indigenous dinosaur like Mr. Pepe or, as he is known throughout the world, could not be missing here. Concavenator corcovatus or “the hunchbacked hunter of Cuenca.” Of course, I don’t know why but that name doesn’t sound fierce to me… Until they tell us that is the Iberian cousin of carcharodontosaurus. That’s when I start to take it seriously.

With only 2 meters high and 6 meters long, it weighed up to 3 tons. That is not exactly little, as you have been able to see seeing the size of the rest of the dinosaurs. It was a dangerous dinosaur in short distances and that could surprise its opponents. Once you got close to him, you had little chance of surviving.

dangerous dinosaur carnotaurus


This medium-sized theropod lived in the late Cretaceous period on the continent we now know as South America. The name means “carnivorous bull» because of the 2 protuberances on its skull in the form of horns, this being the only theropod found with these characteristics, although this is not what should really worry us.

If we had seen one in the distance, we would have only had one option: Run.

Run as fast as we can. This dangerous predator is considered one of the fastest (if not the fastest) of its category thanks to 2 hind legs with enormous power that could make its body move at great speed and for longer than its larger theropod cousins.

If to this we add that Carnotaurus had binocular vision and depth perception Thanks to the fact that its eye sockets looked forward (something unusual in dinosaurs), we can say without a doubt that it would have been one of the most dangerous dinosaurs.

dilophosaurus a dangerous carnivore


Here we have another medium-sized therapod, or at least it is where many classify it still without much certainty. Your name means “2-crested lizard» and lived during part of the Triassic and Jurassic periods, approximately 200 million years ago.

With a maximum size of 2.5 meters high and about 7 meters long, this dinosaur did not weigh more than 400 kg, which added to its long and strong legs allowed it to reach sufficient speed to be one of the the most dangerous dinosaurs before an agile prey.

His jaw, small and weak in appearance, was accompanied by powerful muscles that gave him a relentless bite.

However, it would not fall into this category of being a solitary therapod as most of these predators tend to be, but have recently found evidence that Dilophosaurs lived in groupsand if so, hunting in groups there was no possible escape, just imagine a group of 4 or 5 of these deadly hunters behind a group of humans… More than one would not have come out alive.

Purussaurus brasiliensis the deadly giant crocodile

Purussaurus brasiliensis

Speaking of the most dangerous dinosaurs, this Archosaur takes the cake. It could easily be defined as giant crocodileIn fact, it is the largest that has inhabited the planet. With a maximum length of up to 18 meters and being able to weigh up to 14 tons, this animal was the terror of the rivers and swamps of South America approximately 8 million years ago.

Here the danger is palpable. All animals need to drink, and in rivers and swamps no matter how big the Purussaurus was, under calm water went unnoticed until it was too late to do anything.

A jaw so powerful it could wield a pressure of 11.5 tons, more than double that of a Tyrannosaurus Rex and 20 times higher than a current shark. It hunted mostly large herbivores, or whatever came within range, since nothing could escape the force of its jaws when it was submerged in water.

It seems unbelievable that a predator of such caliber would become extinct at that time, but due to geological movements that led to the appearance of the Andean mountain range, many swampy areas disappeared, which added to the extinction of several of the animals that were their prey. usual, makes it appear that you were unable to maintain the necessary intake of 40 kilos of meat daily.

marine dangerous liopleurodon


This reptile belonging to the plesiosaurs It was one of the largest predators that has ever existed on the planet, which it inhabited during the Jurassic period. Some scientists say it could even measure 25 meters long and up to 100 tonsimagine 2 urban buses in line, and put this sea beast side by side, and you will see that they measure the same.

Not because of its size it was slow, underwater and with its powerful fins could chase prey at high speed for great distances, to end up catching them when they slowed down due to fatigue.

In addition, Liopleurodon, like the other plesiosaurs, had a huge head compared to its body, which could measure 1/4 of its total length, 4 fins with strong muscles and very, very hungry, so if you were in the water in its hunting hour, you had very little chance of getting out alive, so any land dinosaur would end up being chewed up by its teeth, which were twice the size of an adult Tyrannosaurus Rex, making this Liopleurodon the most dangerous marine dinosaur.

pentaceratops herbivore of the most dangerous dinosaurs


Yes, to finish this list I wanted to include a herbivore despite the fact that many of you will say A dangerous herbivore? Well yes, of course yes. Isn’t it dangerous to meet a rhinoceros?

Well, here we have a much more dangerous dinosaur than a running white rhinoceros: the Pentaceratops, and this is gigantic ceratopsid About 6 meters long, it had the largest head of all known terrestrial vertebrates, from which 3 horns protruded, 2 of them frontal and very dangerous.

Your name means “5 horns» even though he only had 3, this is due to 2 bony protrusions protruding from his cheeks making it look like he had 2 more.

These large herbivores lived in large groups and there are indications that they protected the youngest keeping them in the center of it, just as large wild mammals such as buffalo do today.

It is also thought that the males were very territorial and could attack any possible threat that approached their group, attacking with enormous power and force with the largest and hardest head of the Mesozoic, piercing their enemies with their horns. .

What is for you the fiercest of all?

We have already given you up to 7 fierce dinosaur options thanks to our Twitter fans. Now it’s your turn to choose the fiercest of all. Is it on this list or do you think we should include someone else that isn’t? Comment and help us find the most dangerous dinosaur of all time.