Top 10 Deadliest Carnivorous Dinosaurs

Tyrannosaurus Rex! The Official King of Dinosaurs! So why number 2? Most lists support T-Rex as number 1 because of his dino "royalty", made famous in Jurassic Park. Well, here is why: Also known as "T-Rex", Tyranno is not as big as earlier giants such as Spinosaurus, Giganotosaurus, Carcharodontosaurus, Saurophaganax, Tyrannotitan, or Mapusaurus. So to clarify, T-Rex is NOT the largest dinosaur in history (sorry to ruin your childhood).

BUT the Tyrant King also has many objectives in his favor. Some facts that bring him to be number 2 include his binocular vision, an above-average brain, bone-crushing jaws, and infecting teeth. You probably haven't heard of the last one, eh? Well, newer research has proven that T-Rex has dead meat stuck in his teeth. The meat, rotting in his teeth, will transfer into a victim's bloodstream as T-Rex crunches into their body and the bacteria-filled saliva flows into the veins. The bacteria from the rotting meat will start to weaken the victim, so even if T-Rex doesn't manage to kill his victim, the victim will die sooner or later anyway. - RaptorOnFire1206

Once again, people demonstrate their cognitive bias towards Tyrannosaurus. It might have possessed the capability to win a hypothetical fight with Spinosaurus because it did have a 5-6 tonne bite force. However, Spinosaurus was not weaker.

Yes, it had weaker jaws, but its arms were very powerful. They figured out that Spinosaurus could generate over 80,000 Newton-meters of power from them. A swipe from that would almost certainly concuss a Tyrannosaurus, if not shatter its jaw. And yes, the people who measured the arm strength of Spinosaurus are credited paleontologists.

For all those armchair film watchers who say Tyrannosaurus would flatten Spinosaurus, actually read up on your facts before coming out with pseudo-intellectual statements about the lethality of Tyrannosaurus. Tyrannosaurus weighed an absolute maximum of 8 tonnes. The mass of Spinosaurus was harder to estimate, but theoretically, it could weigh well over 15 tonnes, twice that of the largest Tyrannosaurus.

They lived in completely different time periods in history anyway. But it is neither appropriate nor mature to call Tyrannosaurus "the king of all dinosaurs" just because you like it. I suggest you try to actually use your time constructively and appreciate how diverse and fascinating all life from that time in history.

Giganotosaurus: The second largest dinosaur next to Spinosaurus, Giga had a stronger bite force than Spinosaurus. Though his bite force is not yet as strong as T-Rex's, Giganotosaurus's size beats almost every factor in Tyrannosaurus. Plus, Giganotosaurus has longer arms than the puny... Um, stumps, of T-Rex.

At the same time, Giga is proven to have a lighter build than T-Rex, which means Giganotosaurus can run faster (studies have shown that while Rex runs up to 15 mph, Giganotosaurus can be as speedy as 20 mph or more). Giganotosaurus is also known to hunt in packs, since many Giganotosaurus skeletons are found together, probably so they could bring down large sauropods such as Argentinosaurus.

After all, Giga deserves to be number one in my opinion. - RaptorOnFire1206

The third-largest land predator after Spinosaurus and Giganotosaurus, Carcharodontosaurus is basically an oversized version of the famous Allosaurus. Studies have shown that Carcharodontosaurus has the same brain function and size as an Allosaurus and has the same attacking strategies. The only thing that sets Carchar apart from Allosaurus is that Carcharodontosaurus is about 45 feet long, longer than a 41-foot-long T-Rex, and much longer than a 39-foot-long Allosaurus.

But there is still another similarity between Carchar and Allo: They WEREN'T, yes WEREN'T, the top predators of their time. They were both second to the top: Carcharodontosaurus was ruled by Spinosaurus, and Allosaurus was under the mighty reign of Saurophaganax (though Sauro is thought to be a new specimen of Allosaurus by some scientists). Still, Carcharodontosaurus is a formidable predator and is very experienced at fighting after all these years sharing the homeland of Spino. - RaptorOnFire1206

Rajasaurus is a large Indian predator that ruled the Late Cretaceous India alongside Indosaurus. Rajasaurus often battled Indosaurus for meat, usually with Indosaurus killing a herbivore with his speed and wits, and Rajasaurus scaring Indosaurus off with his size.

Even though 9 feet longer (Rajasaurus = 29 feet, Indosaurus = 20 feet), Rajasaurus doesn't have the speed and wit to hunt like Indosaurus. So, Rajasaurus always had to rely on the smaller but more deadly Indosaurus for food. - RaptorOnFire1206

The largest living raptor the world has known, this 20 foot long Utahraptor is Mr. Titan among these hook-clawed thieves. Velociraptor, the most famous raptor (because of Jurassic Park), is an average sized raptor at about 6 feet long and 3 feet tall. Deinonychus, a bit larger, is around 10 feet long and 5 feet tall (Jurassic Park portrayed Velociraptor's size to be the size of Deinonychus).

But the true monster, Utahraptor, is averaged at 19 feet long and 8 feet tall. Utahraptor wasn't as speedy as the 35 mph Dromaeosaurus (a member of the raptors aka. Dromaeosaurs), but Utahraptor already tops the speed at 30 mph max., far outrunning other bigger predators such as T-Rex and Giganotosaurus. But what really sets Utahraptor apart from most big killers is he has the brain of the raptors: Smart, tactical, way above average.

They say Utahraptor has a brain the size of an eagle's! So think of this: Who Utahraptor really is: A really intelligent and super agile and fast Ceratosaurus with hooked claws. My, my, my! It's a monster out of a bad dream! (Also, recent studies have predicted that Utahraptor might've grown to the size of a small Allosaurus, though there is not enough proof to make it a fact. But if that was true, Utahraptor would be the deadliest of them all!) - RaptorOnFire1206

Tarbosaurus is T-Rex's distant cousin of China and Mongolia. Tarbosaurus is just as powerful as T-Rex but lacking a few of Rex's most deadly features. First, Tarbo is quite smaller, at around 36-38 feet long (although some scientists believe that Tarbosaurus is over 40 feet long). Second, Tarbosaurus lacks T-Rex's binocular vision, and third, Tarbo lacks T-Rex's poisonous saliva.

But Tarbosaurus does have his American cousin's bone-crushing jaws, though. And they say Tarbo might be a little faster too. Tarbo also has his cousin's above-average sized brain capacity. - RaptorOnFire1206

Mapusaurus is a close cousin of Giganotosaurus, if not a juvenile of Giga. But studies prove that Mapusaurus is a slightly different dinosaur, with a smaller, lighter build, weaker jaws, more of a pack hunter, and a slightly larger brain.

Mapusaurus is about the size of T-Rex and Allosaurus, at around 40-42 feet long. Evidence suggests that Mapusaurus traveled in family groups, since bones showed baby, juvenile, and adult Mapusaurus bones scattered near each other. Mapusaurus probably hunted in packs so they could bring down the large Argentinosaurus of his time. Even though a formidable predator, Mapusaurus is not king of his land. That throne is for Giganotosaurus! - RaptorOnFire1206

Velociraptor gained fame through Jurassic Park, where it was portrayed as being man-sized, capable of turning doorknobs, and outsmarting humans. However, none of that is true. The size of the Velociraptor in Jurassic Park is based on Deinonychus, which stands at 5.5 feet tall and 10 feet long.

So, what about the Velociraptor? In reality, Velociraptor is only the size of a fully grown turkey, measuring about 7 feet long and 3 feet tall. Additionally, no dinosaur, including the two smartest dinosaurs, Utahraptor and Troodon, could turn doorknobs or outsmart humans. Nevertheless, Velociraptor is an intelligent dinosaur and one of the fastest as well. It hunted Protoceratops in Mongolia and ranked as the second top predator, following the Tyrannosaur Tarbosaurus. - RaptorOnFire1206

If it came down to facing either a Tyrannosaurus or an Allosaurus, believe it or not, I'd take the Tyrannosaurus. Simply because despite its terror-inducing size and power, you could quite easily outrun a T. Rex. The cost of all that mass is a top speed comparable to that of any reasonably athletic human.

However, Allosaurus is the mini T. Rex from hell. Weighing in at a still pretty sizeable 2-4 tonnes, Allosaurus could chase down all but the most elite human runners over 100 meters with a theoretical top speed of over 20 mph, compared to the T. Rex's pretty pathetic 8-10 mph. Over any extended distance, though, it's very clear that the human is going to lose.

On top of that, Allosaurus had enormous claws and powerful arms, plus it could open its jaws 92 degrees wide, making it a terrifying creature to try and escape from. If we are talking about squaring off against these animals, though, I'd rather get killed by the Allosaurus.

Sinraptor really isn't a raptor, but a closer relative to Allosaurus and Yangchuanosaurus. I have no idea why Sinraptor is named a "raptor", but... well, sue the namers. This dino is quite small for an Allosauridae, only reaching up to about 25 feet long and about 7 feet tall.

So, really, how did this tiny allosaur reach the list? Smaller than the already puny Yangchuanosaurus, Sinraptor is known for its cunning, a little bit smarter than the not-as-bright allosaurs of later times. Which brings us to... Yeah, Sinraptor is from the early-mid Jurassic Period, unlike Allosaurus, which comes from the Late Jurassic period, and unlike Yang, which came into play during the mid-late Jurassic.

But, like Yang but unlike Allo, Sinraptor is from China. Sinraptor uses its speed to hunt down speedy dinos such as the feathered little dino Epidexipteryx and sometimes a little bit larger herbivores such as the sauropod Shunosaurus. Which brings us to the subject of Sinraptor's speed, which can overpower Allosaurus's quick pace of 24 mph... Sinraptor is known to run at speeds of 26-29 mph, not besting the dinosaur race cars the raptors, but instead already besting the speed limit of a dino that's Sinraptor's size and bulk. - RaptorOnFire1206

As far as dinosaurs go, Troodon was the rocket scientist of all dinosaurs. This five-foot-long genius dino was a dromaeosauridae, more commonly known as "raptor". Some scientists say Utahraptor was the most intelligent of dinosaurs, but more scientists today observe that Troodon was probably the smartest of all dinosaurs.

With the IQ of a crow, Troodon was a small, intelligent raptor that usually hunted during the night. They say Troodon could see in the night, which was when Troodon usually hunted, so he wouldn't have to confront bigger dinos of the time such as Tyrannosaurus Rex. This two-foot-tall reptile would spot prey in even the darkest of nights.

And as far as dinos go, Troodon was the Albert Einstein of the dinosaurs, while we can say Utahraptor, coming in with an IQ of an eagle and coming in second place, would be the dinosaurs' Thomas Edison. - RaptorOnFire1206

This ought to be on the list. Acro is probably one of the largest predators on land, tied with T-Rex at 40-41 feet long. Acrocanthosaurus ruled the Early Cretaceous, hunting down sauropods and even armored anklyosaurs.

Acrocanthosaurus is huge, I have to admit, but he is only down here because he A. isn't a very bright dino, and B. This guy is pretty slow. Sometimes even being big won't bring you into the Top 10! -RaptorOnFire1206

NEEDS TO BE IN TOP 10! This could take down any of the ones above and was bigger than most of them.

Carnotaurus, featured in Disney: Dinosaur, is a large theropod capable of taking down large sauropods with his great jaws in Late Cretaceous South America, feeding alongside the larger and probably more deadly Abelisaurus. This 30-foot-long dinosaur has spikes running down his whole body, probably for protection.

A heavyweight, this dinosaur probably took down slower dinosaurs such as sauropods instead of faster iguanodonts, as shown in the movie Disney: Dinosaur. Carnotaurus's name means "meat-eating bull" because 1. Carnotaurus is a carnivore and 2. Carnotaurus has two large horns on the top of his eyes. Carnotaurus probably used his horns to cause wounds in victims, or maybe just for display and attracting mates. Anyhow, this 30-foot-long dinosaur is a terror to behold. - RaptorOnFire1206

"Size isn't everything!" - Some Random Guy said. Well, that Random Guy is correct. Deinonychus Antirrhopus isn't a real big dino. Actually, he is pretty small, since he's a dromeosaurid like Utahraptor and Velociraptor.

Well, Utahraptor may be 19 feet long and 8 feet tall, but for such a deadly dinosaur like Deinonychus, 10 feet long and 5 feet tall is way more than enough. Why? Well, first of all, Deinonychus, like most raptors, hunted in packs. Usually in groups of 7 or 8 (unlike Utahraptor's groups of 3 through 5), Deinonychus could bring down dinosaurs several times his size, such as its favorite prey, Tenotosaurus, a 30-foot-long iguanodont.

Another reason about why Deinonychus is so deadly is because of his cunning. Like all raptors, Deinonychus's brain is way above average, with the brain almost the size of a crow's. Deinonychus also, like all raptors, have huge, hook-clawed feet. The second toe acts like a kitchen knife: It sliced through flesh in seconds. Last of all, Deinonychus acts in speed.

Racing at up to 35 (some scientists predict 40) miles per hour, Deinonychus was the race car of the dinosaurs. Here's a cool fact: In Jurassic Park, Velociraptor's size was actually based on Deinonychus: Velociraptor's actual size was only about the size of a large beagle. Isn't that just laugh out loud? - RaptorOnFire1206

Oxalia is a large spinosauridae, roughly the size of smaller allosauridae like Torvosaurus or Yangchuanosaurus. Oxalia is essentially a miniature version of Spinosaurus. However, this 35-foot-long spinosaur rarely hunted other dinosaurs except under rare circumstances, such as when the riverbed dried up.

Typically, this Late Cretaceous Brazilian predator primarily hunted fish and occasionally smaller crocodiles in the riverbed, coexisting with Abelisaurus and Carnotaurus on its land. - RaptorOnFire1206

Yes, I'm going down the list now. Now would be Mr. Yangchuanosaurus, close cousin of his more famous (and stuck-up, in Yang's opinion) cousin Allosaurus Fragilis, made famous from Sir Arthur Conan Doyle's The Lost World: A Novel. Well, Yangchuanosaurus got pushed down the list because... Well, he was SMALLER. Allosaurus was matchable at 39 feet long, able to take down massive sauropods such as Diplodocus and Brachiosaurus.

What about Yang? Well, he's this 32-34 foot long PUNYsaurus (at least puny for his family branch, the allosauridae) that hunts down the much smaller sauropods such as Mamenchisaurus and the stegosaur Kentrosaurus. Also, Yang wasn't as fast as Allosaurus since he weighed about a ton more. Yangchuanosaurus was also not quite as intelligent.

Tyrannotitan is a very new dinosaur, discovered in 2005. Little information is known about Tyrannotitan since only fragments of one skeleton have been discovered. The bones suggest a large Allosauridae, about 40-43 feet in length (average at 42 feet).

This early-mid Cretaceous probably competed with larger predators such as Giganotosaurus and Mapusaurus, since all three lived in the Early Cretaceous (115 mya) in Argentina. Even though not much is known about this new theropod, he is able to make it onto the list with his large size. - RaptorOnFire1206

Majungasaurus (formerly Majungatholus) was a large African hunter from the Late Cretaceous period and one of the only dinosaurs discovered in Madagascar, an island near Africa. On Majungasaurus's island, food was scarce, so there are many skeletons showing that Majungasaurus was a cannibal, as there were Majungasaurus teeth marks on smaller Majungasaurus bones.

Majungasaurus was a medium-sized predator, measuring around 30 feet long. It possessed a mighty bite force and usually hunted rodents and lizards, but sometimes resorted to cannibalism. The dinosaur had a dome on the top of its head, probably for displaying to females. The dome was the reason why Majungasaurus used to be called "Majungatholus" because "tholus" was Greek for "dome." - RaptorOnFire1206

Megaraptor, despite its name, was not a raptor. Actually, Megaraptor is a smaller member of the Allosauridae family. This 25-foot-long Late Cretaceous predator from Argentina had a 10-inch sickle claw on his first finger, not his toe. The claw was probably used to slice prey open.

Megaraptor likely scavenged leftovers from larger predators of that time and place such as Giganotosaurus, Mapusaurus, and Tyrannotitan. - RaptorOnFire1206

Megalosaurus! Prominently the first dinosaur ever discovered, Megalosaurus was a primitive mid-Jurassic 30-foot-long monster that hunted down small mid-Jurassic sauropods. The first dinosaur ever to be discovered, Megalosaurus was named "Big lizard" because that was what the scientists thought of Megalosaurus at the time (the 1700s).

Megalosaurus was big, but wasn't the brightest of dinosaurs. Since this dino was a primitive reptile, Megalosaurus had a relatively small, unfocused brain. But this monster made up for his size, being one of the biggest theropods of his time (160 mya, 10 million years before Allosaurus). - RaptorOnFire1206

Albertosaurus is like a smaller version of T-Rex. Faster, quicker, more agile, with a slightly larger brain, Albertosaurus ruled - you guessed it! Albertosaurus was in control of Alberta, Canada, where this dinosaur was first discovered.

At 25 feet long and 9 feet tall, this speedy but small tyrannosaurid could sprint up to speeds of over 25-30 mph, almost besting the speedy little raptors. The reason Albertosaurus could run so fast is because of the thick, strong muscles in its legs. Equipped with intelligence, speed, and bone-crushing jaws, Albertosaurus deserves to be in the Top 20.

- RaptorOnFire1206

Ceratosaurus is a small Late Jurassic theropod that hunted smaller iguanodonts such as Camptosaurus. Ruled by Allosaurus and Saurophaganax, Ceratosaurus is known for its distinctive horn on the end of its snout. That is the main reason for its name, which means "horned lizard."

Ceratosaurus is a 20-25 foot long, slender carnivore, easily outsized by the 38-foot-long Allosaurus and the 45-foot-long Saurophaganax. Scientists also say that Ceratosaurus was outsmarted, as it was a primitive dinosaur with a dull, non-calculating brain.

Still, Ceratosaurus was a fearsome sight in battle! - RaptorOnFire1206